Achache, J., Courtillot, V., Ducruix, J. and LeMouel, J. L. (1980). The late 1960s secular variation impulse: further constraints on deep mantle conductivity. Phys. Earth Planet. Inter. 23: 72–75.CrossRefGoogle Scholar

Agarwal, A. K. and Weaver, J. T. (1990). A three-dimensional numerical study of induction in southern India by an electrojet source. Phys. Earth Planet. Inter. 60: 1–17.CrossRefGoogle Scholar

Akima, H. (1978). A method of bivariate interpolation and smooth surface fitting for irregularly distributed data points. ACM Trans. Math. Software 4: 148–159.CrossRefGoogle Scholar

Aldredge, L. R. (1977). Deep mantle conductivity. J. Geophys. Res. 82: 5427–5431.CrossRefGoogle Scholar

Allmendinger, R. W., Sharp, J. W., Tish, D.et al. (1983). Cenozoic and Mesozoic structure of the eastern basin and range province, Utah, from COCORP seismic-reflection data. Geology, 11: 532–536.2.0.CO;2>CrossRefGoogle Scholar

Archie, G. E. (1942). The electrical resistivity log as an aid to determining some reservoir characteristics. Trans. A. I. M. E. 146: 389–409.Google Scholar

Bahr, K. (1988). Interpretation of the magnetotelluric impedance tensor: regional induction and local telluric distortion. J. Geophys. 62: 119–127.Google Scholar

Bahr, K. (1991). Geological noise in magnetotelluric data: a classification of distortion types. Phys. Earth Planet. Inter. 66: 24–38.CrossRefGoogle Scholar

Bahr, K. (1997). Electrical anisotropy and conductivity distribution functions of fractal random networks and of the crust: the scale effect of connectivity. Geophys. J. Int. 130: 649–660.CrossRefGoogle Scholar

Bahr, K., Bantin, M., Jantos, Chr., Schneider, E. and Storz, W. (2000). Electrical anisotropy from electromagnetic array data: implications for the conduction mechanism and for distortion at long periods. Phys. Earth Planet. Inter. 119: 237–257.CrossRefGoogle Scholar

Bahr, K. and Duba, A. (2000). Is the asthenosphere electrically anisotropic?Earth Planet. Sci. Lett. 178: 87–95.CrossRefGoogle Scholar

Bahr, K. and Filloux, J. H. (1989). Local Sq response functions from EMSLAB data. J. Geophys. Res. 94: 14.195–14.200.CrossRefGoogle Scholar

Bahr, K., Olsen, N. and Shankland, T. J. (1993). On the combination of the magnetotelluric and the geomagnetic depth sounding method for resolving an electrical conductivity increase at 400 km depth. Geophys. Res. Lett. 20: 2937–2940.CrossRefGoogle Scholar

Bahr, K. and Simpson, F. (2002). Electrical anisotropy below slow- and fast-moving plates: paleoflow in the upper mantle?Science 295: 1270–1272.CrossRefGoogle ScholarPubMed

Bahr, K., Smirnov, M., Steveling, E. and BEAR working group (2002). A gelation analogy of crustal formation derived from fractal conductive structures. J. Geophys. Res. 107: (B11) 2314, doi: 10.1029/2001JB000506.CrossRefGoogle Scholar

Bai, D., Meju, M. and Liao, Z. (2001). Magnetotelluric images of deep crustal structure of the Rehai geothermal field near Tengchong, Southern China. Geophys. J. Int. 147: 677–687.CrossRefGoogle Scholar

Banks, R. J. (1969). Geomagnetic variations and the electrical conductivity of the upper mantle. Geophys. J. R. Astr. Soc 17: 457–487.CrossRefGoogle Scholar

Bell, D. R. and Rossman, G. R. (1992). Water in the Earth's mantle: the role of nominally anhydrous minerals. Science 255: 1391–1397.CrossRefGoogle ScholarPubMed

Berdichevsky, M. N. (1999). Marginal notes on magnetotellurics. Surv. Geophys., 20: 341–375.CrossRefGoogle Scholar

Berdichevsky, M. N. and Dimitriev, V. I. (1976). Distortion of magnetic and electric fields by near-surface lateral inhomogeneities. Acta Geodaet., Geophys. et Montanist. Acad. Sci. Hung. 11: 447–483.Google Scholar

Bigalke, J. (2003). Analysis of conductivity of random media using DC, MT, and TEM. Geophysics 68: 506–515.CrossRefGoogle Scholar

BIRPS and ECORS (1986). Deep seismic profiling between England, France and Ireland. J. Geol. Soc. London 143: 45–52.CrossRef

Boas, M. L. (1983). Mathematical Methods in the Physical Sciences, 2nd edn. New York: Wiley & Sons.Google Scholar

Brasse, H., Lezaeta, P., Rath, V., Schwalenberg, K., Soyer, W. and Haak, V. (2002). The Bolivian Altiplano conductivity anomaly. J. Geophys. Res. 107: (B5), doi: 10.1029/2001JB000391.CrossRefGoogle Scholar

Brasse, H. and Junge, A. (1984). The influence of geomagnetic variations on pipelines and an application of large-scale magnetotelluric depth sounding, J. Geophys. 55: 31–36.Google Scholar

Brasse, H. and Rath, V. (1997). Audiomagnetotelluric investigations of shallow sedimentary basins in Northern Sudan. Geophys. J. Int. 128: 301–314.CrossRefGoogle Scholar

Brown, C. (1994). Tectonic interpretation of regional conductivity anomalies. Surv. Geophys. 15: 123–157.CrossRefGoogle Scholar

Cagniard, L. (1953). Basic theory of the magnetotelluric method of geophysical prospecting. Geophysics 18: 605–645.CrossRefGoogle Scholar

Campbell, W. H. (1987). Introduction to electrical properties of the Earth's mantle. Pure Appl. Geophys. 125: 193–204.CrossRefGoogle Scholar

Campbell, W. H.(1997). Introduction to Geomagnetic Fields. Cambridge: Cambridge University Press.Google Scholar

Cantwell, T. (1960). Detection and analysis of low-frequency magnetotelluric signals. Ph.D. Thesis, Dept. Geol. Geophys. M.I.T., Cambridge, Mass.

Chamberlain, T. C. (1899). On Lord Kelvin's address on the age of the Earth. Annual Report of the Smithsonian Institution, pp. 223–246.

Chapman, D. S. and Furlong, K. P. (1992). Thermal state of the continental crust. In The Continental Lower Crust, eds. Fountain, D. M., Arculus, R. J. and Kay, R. W.. Amsterdam: Elsevier, pp. 81–143.Google Scholar

Chapman, S. (1919). The solar and lunar diurnal variations of terrestrial magnetism. Phil. Trans. Roy. Soc. London A218: 1–118.Google Scholar

Chapman, S. and Ferraro, V. C. A. (1931). A new theory of magnetic storms. Terr. Mag. 36: 77–97.CrossRefGoogle Scholar

Chave, A. D. and Smith, J. T. (1994). On electric and magnetic galvanic distortion tensor decompositions. J. Geophys. Res. 99: 4669–4682.CrossRefGoogle Scholar

Clarke, J., Gamble, T. D., Goubau, W. M., Koch, R. H. and Miracky, R. F. (1983). Remote-reference magnetotellurics: equipment and procedures. Geophys. Prosp. 31: 149–170.CrossRefGoogle Scholar

Constable, S. C., Parker, R. L. and Constable, C. G. (1987). Occam's inversion: A practical algorithm for generating smooth models from EM sounding data. Geophysics 52: 289–300.CrossRefGoogle Scholar

Constable, S. C., Orange, A. S., Hoversten, G. M. and Morrison, H. F. (1998). Marine magnetotellurics for petroleum exploration. Part I: a seafloor equipment system. Geophysics 63: 816–825.CrossRefGoogle Scholar

Constable, S. C., Shankland, T. J. and Duba, A. (1992). The electrical conductivity of an isotropic olivine mantle. J. Geophys. Res. 97: 3397–3404.CrossRefGoogle Scholar

Davies, G. F. and Richards, M. A. (1992). Mantle convection. J. Geol. 100: 151–206.CrossRefGoogle Scholar

Debayle, E. and Kennett, B. L. N. (2000). The Australian continental upper mantle: structure and deformation inferred from surface waves, J. Geophys. Res. 105: 25423–25450.CrossRefGoogle Scholar

DEKORP Research Group (1991). Results of the DEKORP 1 (BELCORP-DEKORP) deep seismic reflection studies in the western part of the Rhenish Massif. Geophys. J. Int. 106: 203–227.CrossRef

Dobbs, E. R. (1985). Electromagnetic Waves. London: Routledge & Kegan Paul.Google Scholar

Dosso, H. W. and Oldenburg, D. W. (1991). The similitude equation in magnetotelluric inversion. Geophys. J. Int. 106: 507–509.CrossRefGoogle Scholar

Duba, A., Heard, H. C. and Schock, R. N. (1974). Electrical conductivity of olivine at high pressure and under controlled oxygen fugacity. J. Geophys. Res. 79: 1667–1673.CrossRefGoogle Scholar

Duba, A., Heikamp, S., Meurer, W., Nover, G. and Will, G. (1994). Evidence from borehole samples for the role of accessory minerals in lower-crustal conductivity. Nature 367: 59–61.CrossRefGoogle Scholar

Duba, A. and Nicholls, I. A. (1973). The influence of oxidation state on the electrical conductivity of olivine. Earth Planet. Sci. Lett. 18: 279–284.CrossRefGoogle Scholar

Duba, A., Peyronneau, J., Visocekas, F. and Poirier, J.-P. (1997). Electrical conductivity of magnesiowüstite/perovskite produced by laser heating of synthetic olivine in the diamond anvil cell. J. Geophys. Res. 102: 27723–27728.CrossRefGoogle Scholar

Duba, A. and Shankland, T. J. (1982) Free carbon and electrical conductivity in the mantle. Geophys. Res. Lett. 11: 1271–1274.CrossRefGoogle Scholar

Duba, A. and der Gönna, J. (1994) Comment on change of electrical conductivity of olivine associated with the olivine–spinel transition. Phys. Earth Planet. Inter. 82: 75–77.CrossRefGoogle Scholar

Echternacht, F., Tauber, S., Eisel, M., Brasse, H., Schwarz, G. and Haak, V. (1997). Electromagnetic study of the active continental margin in northern Chile. Phys. Earth Planet. Inter. 102: 69–87.CrossRefGoogle Scholar

Eckhardt, D. H. (1963). Geomagnetic induction in a concentrically stratified Earth. J. Geophys. Res. 68: 6273–6278.CrossRefGoogle Scholar

Edwards, R. E. and Nabighian, M. N. (1981). Extensions of the magnetometric resistivity (MMR) method. Geophysics 46: 459–460.Google Scholar

Egbert, G. D. (1997). Robust multiple-station magnetotelluric data processing. Geophys. J. Int. 130: 475–496.CrossRefGoogle Scholar

Egbert, G. D. and Booker, J. R. (1986). Robust estimation of geomagnetic transfer functions. Geophys. J. R. Astr. Soc. 87: 173–194.CrossRefGoogle Scholar

Eisel, M. and Bahr, K. (1993). Electrical anisotropy under British Columbia: interpretation after magnetotelluric tensor decomposition. J. Geomag. Geoelectr. 45: 1115–1126.CrossRefGoogle Scholar

Eisel, M. and Haak, V. (1999). Macro-anisotropy of the electrical conductivity of the crust: a magneto-telluric study from the German Continental Deep Drilling site (KTB). Geophys. J. Int. 136: 109–122.CrossRefGoogle Scholar

ELEKTB group (1997). KTB and the electrical conductivity of the crust. J. Geophys. Res. 102: 18289–18305.CrossRef

Engels, M., Korja, T. and BEAR Working Group (2002). Multisheet modeling of the electrical conductivity structure in the Fennoscandian Shield. Earth, Planets and Space 54: 559–573.CrossRefGoogle Scholar

Evans, C. J., Chroston, P. N. and Toussaint-Jackson, J. E. (1982). A comparison study of laboratory measured electrical conductivity in rocks with theoretical conductivity based on derived pore aspect ratio spectra. Geophys. J. R. Astr. Soc. 71: 247–260.CrossRefGoogle Scholar

Ferguson, I. J., Lilley, F. E. M. and Filloux, J. H. (1990). Geomagnetic induction in the Tasman Sea and electrical conductivity structure beneath the Tasman seafloor. Geophys. J. Int. 102: 299–312.CrossRefGoogle Scholar

Filloux, J. H. (1973). Techniques and instrumentation for studies of natural electromagnetic induction at sea. Phys. Earth Planet. Inter. 7: 323–338.CrossRefGoogle Scholar

Filloux, J. H. (1987). Instrumentation and experimental methods for oceanic studies. In Geomagnetism, Volume 1, ed. Jacobs, J. A.. London: Academic Press, pp. 143–248.Google Scholar

Fiordelisi, A., Manzella, A., Buonasorte, G., Larsen, J. C. and Mackie, R. L. (2000). MT methodology in the detection of deep, water-dominated geothermal systems. In Proceedings World Geothermal Congress, eds. Iglesias, E., Blackwell, D., Hunt, T., Lund, J. and Tamanyu, S.. Tokyo: International Geothermal Association, pp. 1121–1126.Google Scholar

Fischer, G. and Quang, B. V. (1982). Parameter trade-off in one-dimensional magnetotelluric modelling. J. Geophys. 51: 206–215.Google Scholar

Fischer, G., Schnegg, P.-A., Pegiron, M. and Quang, B. V. (1981). An analytic one-dimensional magnetotelluric inversion scheme. Geophys. J. R. Astr. Soc. 67: 257–278.CrossRefGoogle Scholar

Freund, R. J. and Wilson, W. J. (1998). Regression Analysis: Statistical modeling of a response variable. San Diego: Academic Press.Google Scholar

Frost, B. R. (1979). Mineral equilibria involving mixed volatiles in a C–O–H fluid phase: the stabilities of graphite and siderite. Amer. J. Sci., 279: 1033–1059.CrossRefGoogle Scholar

Frost, B. R., Fyfe, W. S., Tazaki, K. and Chan, T. (1989). Grain boundary graphite in rocks and implications for high electrical conductivity in the crust. Nature 340: 134–136.CrossRefGoogle Scholar

Furlong, K. P. and Fountain, D. M. (1986). Continental crustal underplating: thermal considerations and seismic-petrologic consequences. J. Geophys. Res. 91: 8285–8294.CrossRefGoogle Scholar

Furlong, K. P. and Langston, C. A. (1990). Geodynamic aspects of the Loma Prieta Earthquake, Geophys. Res. Lett. 17: 1457–1460.CrossRefGoogle Scholar

Gaherty, J. B. and Jordan, T. H. (1995). Lehmann discontinuity as the base of an anisotropic layer beneath continents. Science 268: 1468–1471.CrossRefGoogle ScholarPubMed

Gamble, T. D., Goubau, W. M. and Clarke, J. (1979). Magnetotellurics with a remote magnetic reference. Geophysics 44: 53–68.CrossRefGoogle Scholar

Gauss, C. F. (1838). Erläuterungen zu den Terminszeichnungen und den Beobachtungszahlen. In Resultate aus den Beobachtungen des magnetischen Vereins im Jahre 1837, eds. Gauss, C. F. and Weber, W.. Göttingen: Dieterichsche Buchhandlung, pp. 130–137.Google Scholar

Gauss, C. F.(1839). Allgemeine Theorie des Erdmagnetismus. In Resultate aus den Beobachtungen des magnetischen Vereins im Jahre 1838, eds. Gauss, C. F. and Weber, W.. Göttingen: Dieterichsche Buchhandlung, pp. 1–57.Google Scholar

Glassley, W. E. (1982). Fluid evolution and graphite genesis in the deep continental crust. Nature 295: 229–231.CrossRefGoogle Scholar

Goubau, W. M., Gamble, T. D. and Clarke, J. (1979). Magnetotelluric data analysis: removal of bias. Geophysics 43: 1157–1166.CrossRefGoogle Scholar

Graham, G. (1724). An account of observations made of the variation of the horizontal needle at London in the latter part of the year 1722 and beginning 1723. Phil. Trans. Roy. Soc. London 383: 96–107.CrossRefGoogle Scholar

Grammatica, N. and Tarits, P. (2002). Contribution at satellite altitude of electromagnetically induced anomalies arising from a three-dimensional heterogeneously conducting Earth, using Sq as an inducing source field. Geophys. J. Int. 151: 913–923.CrossRefGoogle Scholar

Groom, R. W. and Bahr, K. (1992). Correction for near-surface effects: decomposition of the magnetotelluric impedance tensor and scaling corrections for regional resistivities: a tutorial. Surv. Geophys. 13: 341–379.CrossRefGoogle Scholar

Groom, R. W. and Bailey, R. C. (1989). Decomposition of the magnetotelluric impedance tensor in the presence of local three-dimensional galvanic distortion. J. Geophys. Res. 94: 1913–1925.CrossRefGoogle Scholar

Groot-Hedlin, C. (1991). Removal of static shift in two dimensions by regularized inversion. Geophysics 56: 2102–2106.CrossRefGoogle Scholar

Groot-Hedlin, C. and Constable, S. C. (1990). Occam's inversion to generate smooth, two-dimensional models from magnetotelluric data. Geophysics 55: 1613–1624.CrossRefGoogle Scholar

Guéguen, Y., David, Chr. and Gavrilenko, P. (1991). Percolation networks and fluid transport in the crust. Geophys. Res. Lett. 18: 931–934.CrossRefGoogle Scholar

Guéguen, Y. and Palciauskas, V. (1994). Introduction to the Physics of Rocks. Princeton: Princeton University Press.Google Scholar

Haak, V. and Hutton, V. R. S. (1986). Electrical resistivity in continental lower crust. In The Nature of the Lower Continental Crust, eds. Dawson, J. B., Carswell, D. A., Hall, J., and Wedepohl, K. H.. Geological Society Special Publication 24: 35–49. Oxford: Blackwell Scientific Publications.Google Scholar

Haak, V., Stoll, J. and Winter, H. (1991). Why is the electrical resistivity around KTB hole so low?Phys. Earth Planet. Inter. 66: 12–23.CrossRefGoogle Scholar

Hamano, Y. (2002). A new time-domain approach for the electromagnetic induction problem in a three-dimensional heterogeneous Earth. Geophys. J. Int. 150: 753–769.CrossRefGoogle Scholar

Hashin, Z. and Shtrikman, S. (1962). A variational approach to the theory of the effective magnetic permeability of multiphase materials. J. Appl. Phys. 33: 3125–3131.CrossRefGoogle Scholar

Hautot, S. and Tarits, P. (2002). Effective electrical conductivity of 3-D heterogeneous porous media. Geophys. Res. Lett. 29, No. 14, 10.1029/2002GL014907.CrossRefGoogle Scholar

Hautot, S., Tarits, P., Whaler, K., Gall, B., Tiercelin, J-J and Turdu, C. (2000). Deep structure of the Baringo Rift Basin (central Kenya) from three-dimensional magnetotelluric imaging: implications for rift evolution. J. Geophys Res. 105: 23 493–23 518.CrossRefGoogle Scholar

Heinson, G. S. (1999). Electromagnetic studies of the lithosphere and asthenosphere. Surv. Geophys. 20: 229–255.CrossRefGoogle Scholar

Heinson, G. S. and Lilley, F. E. M. (1993). An application of thin sheet electromagnetic modelling to the Tasman Sea. Phys. Earth Planet. Inter. 81: 231–251.CrossRefGoogle Scholar

Hermance, J. F. (1979). The electrical conductivity of materials containing partial melt: a simple model of Archie's law. Geophys. Res. Lett. 6: 613–616.CrossRefGoogle Scholar

Hirsch, L. M, Shankland, T. and Duba, A. (1993). Electrical conduction and polaron mobility in Fe-bearing olivine. Geophys. J. Int. 114: 36–44.CrossRefGoogle Scholar

Hobbs, B. A. (1992). Terminology and symbols for use in studies of electromagnetic induction in the Earth. Surv. Geophys., 13: 489–515.CrossRefGoogle Scholar

Hohmann, G. W. (1975). Three-dimensional induced polarisation and electromagnetic modeling. Geophysics 40: 309–324.CrossRefGoogle Scholar

Hoversten, G. M., Morrison, H. F. and Constable, S. C. (1998). Marine magnetotellurics for petroleum exploration, Part II: Numerical analysis of subsalt resolution. Geophysics 63: 826–840.CrossRefGoogle Scholar

Huber, P. J. (1981). Robust Statistics. New York: John Wiley & Sons.CrossRefGoogle Scholar

Huenges, E., Engeser, B., Erzinger, J., Kessels, W., Kück, J. and Pusch, G. (1997). The permeable crust: geohydraulic properties down to 9101 m depth. J. Geophys. Res. 102: 18255–18265.CrossRefGoogle Scholar

Hyndman, R. D. and Shearer, P. M. (1989). Water in the lower crust: modelling magnetotelluric and seismic reflection results. Geophys. J. R. Astr. Soc. 98: 343–365.CrossRefGoogle Scholar

Jackson, J. D. (1975). Classical Electrodynamics, 2nd edn. New York: John Wiley & Sons.Google Scholar

Jenkins, G. M. and Watts, D. G. (1968). Spectral Analysis and its Applications. San Francisco: Holden-Day.Google Scholar

Ji, S., Rondenay, S., Mareschal, M. and Senechal, G. (1996). Obliquity between seismic and electrical anisotropies as a potential indicator of movement sense for ductile shear zones in the upper mantle. Geology 24: 1033–1036.2.3.CO;2>CrossRefGoogle Scholar

Jödicke, H. (1992). Water and graphite in the Earth's crust – an approach to interpretation of conductivity models. Surv. Geophys. 13: 381–407.CrossRefGoogle Scholar

Jones, A. G. (1977). Geomagnetic induction studies in southern Scotland. Ph.D. Thesis, University of Edinburgh.

Jones, A. G.(1982). On the electrical crust–mantle structure in Fennoscandia: no Moho, and the asthenosphere revealed?Geophys. J. R. Astr. Soc. 68: 371–388.CrossRefGoogle Scholar

Jones, A. G.(1983). The problem of current channelling: a critical review. Geophysical Surveys 6: 79–122.CrossRefGoogle Scholar

Jones, A. G.(1992). Electrical conductivity of the continental lower crust. In Continental Lower Crust, eds. Fountain, D. M., Arculus, R. J. and Kay, R. W.. Amsterdam: Elsevier, pp. 81–143.Google Scholar

Jones, A. G.(1999). Imaging the continental upper mantle using electromagnetic methods. Lithos 48: 57–80.CrossRefGoogle Scholar

Jones, A. G., Groom, R. W., and Kurtz, R. D. (1993). Decomposition and modelling of the BC87 data set. J. Geomag. Geoelectr. 45: 1127–1150.CrossRefGoogle Scholar

Jones, F. W. and Pascoe, L. J. (1971). A general computer program to determine the perturbation of alternating electric currents in a two-dimensional model of a region of uniform conductivity with an embedded inhomogeneity. Geophys. J. R. Astr. Soc. 24: 3–30.Google Scholar

Jones, F. W. and Pascoe, L. J.(1972). The perturbation of alternating geomagnetic fields by three-dimensional conductivity inhomogeneities. Geophys. J. R. Astr. Soc. 27: 479–485.CrossRefGoogle Scholar

Jones, F. W. and Price, A. T. (1970). The perturbations of alternating geomagnetic fields by conductivity anomalies. Geophys. J. R. Astr. Soc. 20: 317–334.CrossRefGoogle Scholar

Jordan, T. H. (1978). Composition and development of the continental tectosphere. Nature 274: 544–548.CrossRefGoogle Scholar

Junge, A. (1990). A new telluric KCl probe using Filloux's Ag–AgCl electrode. Pure and Applied Geophysics 134: 589–598.CrossRefGoogle Scholar

Junge, A. (1994) Induzierte erdelektrische Felder–neue Beobachtungen in Norddeutschland und im Bramwald. Habilitation Thesis. Göttingen.

Karato, S. (1990). The role of hydrogen in the electrical conductivity of the upper mantle. Nature 347: 272–273.CrossRefGoogle Scholar

Karato, S. and Jung, H. (2003). Effects of pressure on high-temperature dislocation creep in olivine. Phil. Mag. 83, 401–414.CrossRefGoogle Scholar

Kariya, K. A. and Shankland, T. J. (1983). Electrical conductivity of dry lower crustal rocks. Geophysics 48: 52–61.CrossRefGoogle Scholar

Katsube, T. J. and Mareschal, M. (1993). Petrophysical model of deep electrical conductors: graphite lining as a source and its disconnection during uplift. J. Geophys. Res., 98: 8019–8030.CrossRefGoogle Scholar

Keller, G. V. and Frischknecht, F. C. (1966). Electrical methods in geophysical prospecting. In International Series of Monographs in Electromagnetic Waves, 10, eds. Cullen, A. L., Fock, V. A., and Wait, J. R.. Oxford: Pergammon Press.Google Scholar

Kellet, R. L., Mareschal, M. and Kurtz, R. D. (1992). A model of lower crustal electrical anisotropy for the Pontiac Subprovince of the Canadian Shield. Geophys. J. Int. 111: 141–150.CrossRefGoogle Scholar

Kemmerle, K. (1977). On the influence of local anomalies of conductivity at the Earth's surface on magnetotelluric data. Acta Geodaet., Geophys. et Montanist. Acad. Sci. Hung. 12: 177–181.Google Scholar

Key, K. and Constable, S. C. (2002). Broadband marine MT exploration of the East Pacific Rise at 9°50′N. Geophys. Res. Lett. 29: (22), 2054 doi:10.1029/2002GL016035.CrossRefGoogle Scholar

Keyser, M., Ritter, J. R. R. and Jordan, M. (2002). 3D shear-wave velocity structure of the Eifel plume, Germany. Earth Planet. Sci. Lett. 203: 59–82.CrossRefGoogle Scholar

Kohlstedt, D. L. and Mackwell, S. (1998). Diffusion of hydrogen and intrinsic point defects in olivine. Z. Phys. Chem. 207: 147–162.CrossRefGoogle Scholar

Koslovskaya, E. and Hjelt, S.-E. (2000). Modeling of elastic and electrical properties of solid–liquid rock system with fractal microstructure. Phys. Chem. Earth (A) 25: 195–200.CrossRefGoogle Scholar

Kozlovsky, Y. A. (1984). The world's deepest well. Scientific American, 251: 106–112.CrossRefGoogle Scholar

Kuckes, A. F. (1973). Relations between electrical conductivity of a mantle and fluctuating magnetic fields. Geophys. J. R. Astr. Soc. 32: 119–131.CrossRefGoogle Scholar

Kurtz, R. D., Craven, J. A., Niblett, E. R. and Stevens, R. A. (1993). The conductivity of the crust and mantle beneath the Kapuskasing uplift: electrical anisotropy in the upper mantle. Geophys. J. Int. 113: 483–498.CrossRefGoogle Scholar

Kuvshinov, A. V., Olsen, N., Avdeev, D. B. and Pankratov, O. V. (2002). Electromagnetic induction in the oceans and the anomalous behaviour of coastal C-responses for periods up to 20 days. Geophys. Res. Lett. 29: (12), doi:10.1029/2002GL014409.CrossRefGoogle Scholar

Lahiri, B. N. and Price, A. T. (1939). Electromagnetic induction in non-uniform conductors, and the determination of the conductivity of the Earth from terrestrial magnetic variations. Phil. Trans. Roy. Soc. London (A) 237: 509–540.CrossRefGoogle Scholar

Large, D. J., Christy, A. G. and Fallick, A. E. (1994). Poorly crystalline carbonaceous matter in high grade metasediments: implications for graphitisation and metamorphic fluid compositions. Contrib. Mineral. Petrol. 116: 108–116.CrossRefGoogle Scholar

Larsen, J. C. (1975). Low frequency (0.1–6.0 cpd) electromagnetic study of deep mantle electrical conductivity beneath the Hawaiian islands. Geophys. J. R. Astr. Soc. 43: 17–46.CrossRefGoogle Scholar

Larsen, J. C., Mackie, R. L., Manzella, A., Fiordelisi, A. and Rieven, S. (1996). Robust smooth magnetotelluric transfer functions. Geophys. J. Int. 124: 801–819.CrossRefGoogle Scholar

Lee, C. D., Vine, F. J. and Ross, R. G. (1983). Electrical conductivity models for the continental crust based on high grade metamorphic rocks. Geophys. J. R. Astr. Soc. 72: 353–372.CrossRefGoogle Scholar

Léger, A., Mathez, E. A., Duba, A., Pineau, F. and Ginsberg, S. (1996). Carbonaceous material in metamorphosed carbonate rocks from the Waits River Formation, NE Vermont, and its effect on electrical conductivity. J. Geophys. Res., 101: 22 203–22 214.CrossRefGoogle Scholar

Leibecker, J., Gatzemeier, A., Hönig, M., Kuras, O. and Soyer, W. (2002). Evidence of electrical anisotropic structures in the lower crust and the upper mantle beneath the Rhenish Shield. Earth Planet Sci. Lett. 202: 289–302.CrossRefGoogle Scholar

Li, S., Unsworth, M., Booker, J. R., Wie, W., Tan, H. and Jones, A. G. (2003). Partial melt or aqueous fluid in the mid-crust of Southern Tibet? Constraints from INDEPTH magnetotelluric data. Geophys. J. Int. 153: 289–304.CrossRefGoogle Scholar

Lines, L. R. and Jones, F. W. (1973). The perturbation of alternating geomagnetic fields by three-dimensional island structures. Geophys. J. R. Astr. Soc. 32: 133–154.CrossRefGoogle Scholar

Lizzaralde, D., Chave, A., Hirth, G. and Schultz, A. (1995). Northeastern Pacific mantle conductivity profile from long-period magnetotelluric sounding using Hawaii-to-California submarine cable data. J. Geophys. Res. 100: 17837–17854.CrossRefGoogle Scholar

Mackie, R. L., Bennett, B. R. and Madden, T. R. (1988). Long-period MT measurements near the central California coast: a land-locked view of the conductivity structure under the Pacific ocean. J. Geophys. Res. 95: 181–194.Google Scholar

Mackie, R. L. and Madden, T. R. (1993). Conjugate direction relaxation solutions for 3D magnetotelluric modelling. Geophysics 58: 1052–1057.CrossRefGoogle Scholar

Mackie, R. L., Madden, T. R. and Wannamaker, P. E. (1993). Three-dimensional magnetotelluric modeling using difference equations – Theory and comparisons to integral equation solutions. Geophysics 58: 215–226.CrossRefGoogle Scholar

Mackie, R. L., Rieven, S. and Rodi, W. (1997). Users Manual and Software Documentation for Two-Dimensional Inversion of Magnetotelluric Data. San Francisco: GSY-USA Inc.Google Scholar

Mackwell, S. J. and Kohlstedt, D. L. (1990). Diffusion of hydrogen in olivine: implications for water in the mantle. J. Geophys. Res. 95: 5079–5088.CrossRefGoogle Scholar

Madden, T. R. (1976). Random networks and mixing laws. Geophysics, 41: 1104–1125.CrossRefGoogle Scholar

Madden, T. and Nelson, P. (1964, reprinted 1986). A defence of Cagniard's magnetotelluric method. In Society of Exploration Geophysicists, Geophysics Reprint Series, No. 5., ed. Vozoff, K..Google Scholar

Manoj, C. and Nagarajan, N. (2003). The application of artificial neural networks to magnetotelluric time-series analysis. Geophys. J. Int. 153: 409–423.CrossRefGoogle Scholar

Mareschal, M. (1986). Modelling of natural sources of magnetospheric origin in the interpretation of regional studies: a review. Surv. Geophys. 8: 261–300.CrossRefGoogle Scholar

Mareschal, M., Fyfe, W. S., Percival, J. and Chan, T. (1992). Grain-boundary graphite in Kapuskasing gneisses and implication for lower crustal conductivity. Nature 357: 674–676.CrossRefGoogle Scholar

Mareschal, M., Kellett, R. L., Kurtz, R. D., Ludden, J. N. and Bailey, R. C. (1995). Archean cratonic roots, mantle shear zones and deep electrical anisotropy. Nature 375: 134–137.CrossRefGoogle Scholar

Mareschal, M., Kurtz, R. D., Chouteau, M. and Chakridi, R. (1991). A magnetotelluric survey on Manitoulin Island and Bruce Peninsula along GLIMPCE seismic line J: black shales mask the Grenville Front. Geophys. J. Int. 105: 173–183.CrossRefGoogle Scholar

Masero, W., Fischer, G. and Schnegg, P.-A. (1997). Electrical conductivity and crustal deformation from magnetotelluric results in the region of the Araguainha impact, Brazil. Phys. Earth Planet. Inter. 101: 271–289.CrossRefGoogle Scholar

Mathez, E. A., Duba, A. G., Peach, C. L., Léger, A., Shankland, T. J. and Plafker, G. (1995). Electrical conductivity and carbon in metamorphic rocks of the Yukon-Tanana Terrane, Alaska. J. Geophys. Res., 196: 10187–10196.CrossRefGoogle Scholar

Mathur, S. P. (1983). Deep crustal reflection results from the central Eromanga Basin, Australia. Tectonophysics 100: 163–173.CrossRefGoogle Scholar

Matsumoto, T., Honda, M., McDougall, I., Yatsevich, I. and O'Reilly, S. (1997). Plume-like neon in a metasomatic apatite from the Australian lithospheric mantle. Nature 388: 162–164.CrossRefGoogle Scholar

McKenzie, D. (1979). Finite deformation during fluid flow. Geophys. J. R. Astr. Soc. 58: 689–715.CrossRefGoogle Scholar

Meju, M. A. (1996). Joint inversion of TEM and distorted MT soundings: some effective practical considerations. Geophysics 61: 56–65.CrossRefGoogle Scholar

Meju, M. A.(2002). Geoelectromagnetic exploration for natural resources: models, case studies and challenges. Surv. Geophys. 23: 133–206.CrossRefGoogle Scholar

Meju, M. A.Fontes, S. L., Oliveira, M. F. B., Lima, J. P. R., Ulugergerli, E. U. and Carrasquilla, A. A. (1999). Regional aquifer mapping using combined VES-TEM-AMT / EMAP methods in the semiarid eastern margin of Parnaiba Basin, Brazil. Geophysics 64: 337–356.CrossRefGoogle Scholar

Merzer, A. M. and Klemperer, S. L. (1992). High electrical conductivity in a model lower crust with unconnected, conductive, seismically reflective layers. Geophys. J. Int. 108: 895–905.CrossRefGoogle Scholar

Morris, J. D., Leeman, W. P. and Tera, F. (1990). The subducted component in island arc lavas: constraints from Be isotopes and B–Be systematics. Nature 344: 31–36.CrossRefGoogle ScholarPubMed

Nelson, K. D. (1991). A unified view of craton evolution motivated by recent deep seismic reflection and refraction results. Geophys. J. Int. 105: 25–35.CrossRefGoogle Scholar

Nesbitt, B. E. (1993). Electrical resistivities of crustal fluids. J. Geophys. Res. 98: 4301–4310.CrossRefGoogle Scholar

Newton, R. C., Smith, J. V. and Windley, B. F. (1980). Carbonic metamorphism, granulites and crustal growth. Nature 288: 45–50.CrossRefGoogle Scholar

Nolasco, R., Tarits, P., Filloux, J. H. and Chave, A. D. (1998). Magnetotelluric imaging of the Society Island hotspot. J. Geophys. Res. 103: 30287–30309.CrossRefGoogle Scholar

Oettinger, G., Haak, V. and Larsen, J. C. (2001). Noise reduction in magnetotelluric time-series with a new signal-noise separation method and its application to a field experiment in the Saxonian Granulite Massif. Geophys. J. Int. 146: 659–669.CrossRefGoogle Scholar

Ogawa, Y. and Uchida, T. (1996). A two-dimensional magnetotelluric inversion assuming Gaussian static shift. Geophys. J. Int. 126: 69–76.CrossRefGoogle Scholar

Ogunade, S. O. (1995). Analysis of geomagnetic variations in south-western Nigeria. Geophys. J. Int. 121: 162–172.CrossRefGoogle Scholar

Olsen, N. (1998). The electrical conductivity of the mantle beneath Europe derived from C-responses from 3 to 720 hr. Geophys. J. Int. 133: 298–308.CrossRefGoogle Scholar

Olsen, N.(1999). Induction studies with satellite data. Surv. Geophys. 20: 309–340.CrossRefGoogle Scholar

Osipova, I. L., Hjelt, S. -E. and Vanyan, L. L. (1989). Source field problems in northern parts of the Baltic Shield. Phys. Earth Planet. Inter. 53: 337–342.CrossRefGoogle Scholar

Otnes, R. K. and Enochson, L. (1972). Digital Time Series Analysis. New York: John Wiley & Sons.Google Scholar

Padovani, E. and Carter, J. (1977). Aspects of the deep crustal evolution beneath south central New Mexico. In The Earth's Crust: Its Nature and Physical Properties, ed. Heacock, J. G., Amer. Geophys. Union Monogr. Series, 20: 19–55.

Pádua, M. B., Padilha, A. L. and Vitorello, Í. (2002). Disturbances on magnetotelluric data due to DC electrified railway: a case study from southeastern Brazil. Earth, Planets and Space 54: 591–596.CrossRefGoogle Scholar

Park, S. K. (1985). Distortion of magnetotelluric sounding curves by three-dimensional structures. Geophysics 50: 785–797.CrossRefGoogle Scholar

Parker, E. N. (1958). Dynamics of the interplanetary gas and magnetic field. Astrophys. J. 128: 664–676.CrossRefGoogle Scholar

Parker, R. L. (1980). The inverse problem of electromagnetic induction: existence and construction of solutions based on incomplete data. J. Geophys. Res. 85: 4421–4428.CrossRefGoogle Scholar

Parker, R. L. and Whaler, K. A. (1981). Numerical methods for establishing solutions to the inverse problem of electromagnetic induction. J. Geophys. Res. 86: 9574–9584.CrossRefGoogle Scholar

Parkinson, W. (1959). Directions of rapid geomagnetic variations. Geophys. J. R. Astr. Soc. 2: 1–14.CrossRefGoogle Scholar

Parkinson, W. (1971). An analysis of the geomagnetic diurnal variation during the IGY. Gerlands Beitr. Geophys. 80: 199–232.Google Scholar

Parzen, E. (1961). Mathematical considerations in the estimation of spectra: comments on the discussion of Messers, Tukey and Goodman. Technometrics 3: 167–190, 232–234.CrossRefGoogle Scholar

Parzen, E. (1992). Modern Probability Theory and its Applications. New York: John Wiley & Sons.Google Scholar

Pek, J. and Verner, T. (1997). Finite-difference modelling of magnetotelluric fields in two-dimensional anisotropic media. Geophys. J. Int. 128: 505–521.CrossRefGoogle Scholar

Petiau, G. and Dupis, A. (1980). Noise, temperature coefficient and long time stability of electrodes for telluric observations. Geophys. Prosp. 28: 792–804.CrossRefGoogle Scholar

Pous, J., Heise, W., Schnegg, P. -A., Munoz, G., Marti, J. and Soriano, C. (2002). Magnetotelluric study of Las Cañadas caldera (Tenerife, Canary Islands): structural and hydrogeological implications. Earth Planet. Sci. Lett. 204: 249–263.CrossRefGoogle Scholar

Prácser, E. and Szarka, L. (1999). A correction to Bahr's ‘phase deviation’ method for tensor decomposition. Earth, Planets and Space 51: 1019–1022.CrossRefGoogle Scholar

Praus, O., Pecova, J., Petr, V, Babuska, V. and Plomerova, J. (1990). Magnetotelluric and seismological determination of the lithosphere–asthenosphere transition in Central Europe. Phys. Earth Planet. Inter. 60: 212–228.CrossRefGoogle Scholar

Presnall, D. C., Simmons, C. L.Porath, H. (1972). Changes in electriacal conductivitty of a syenthetic basalt during melting. J. Geophys. Res. 77: 5665–5672.CrossRefGoogle Scholar

Price, A. T. (1962). The theory of magnetotelluric fields when the source field is considered. J. Geophys. Res. 67: 1907–1918.CrossRefGoogle Scholar

Primdahl, F. (1979). The fluxgate magnetometer. J. Phys. E: Sci. Instrum. 12: 241–253.CrossRefGoogle Scholar

Raiche, A. P. (1974). An integral equation approach to three-dimensional modelling. Geophys. J. R. Astr. Soc. 36: 363–376.CrossRefGoogle Scholar

Ranganayaki, R. P. (1984). An interpretative analysis of magnetotelluric data. Geophysics 49: 1730–1748.CrossRefGoogle Scholar

Ranganayaki, R. P. and Madden, T. R. (1980). Generalized thin sheet analysis in magnetotellurics: an extension of Price's analysis. Geophys. J. R. Astr. Soc. 60: 445–457.CrossRefGoogle Scholar

Rangarajan, G. K. (1989). Indices of geomagnetic activity. In Geomagnetism, Volume 3, ed. Jacobs, J. A.. London: Academic Press, pp. 323–384.Google Scholar

Rauen, A. and Laštovičková, M. (1995). Investigation of electrical anisotropy in the deep borehole KTB. Surv. Geophys. 16: 37–46CrossRefGoogle Scholar

Reddy, I. K., Rankin, D. and Phillips, R. J. (1977). Three-dimensional modelling in magnetotelluric and magnetic variational sounding. Geophys. J. R. Astr. Soc. 51: 313–325.Google Scholar

Reynolds, J. M. (1997). An Introduction to Applied and Environmental Geophysics. New York: John Wiley & Sons.Google Scholar

Ribe, N. M. (1989). Seismic anisotropy and mantle flow. J. Geophys. Res. 94: 4213–4223.CrossRefGoogle Scholar

Ritter, P. and Banks, R. J. (1998). Separation of local and regional information in distorted GDS response functions by hypothetical event analysis. Geophys. J. Int. 135: 923–942.CrossRefGoogle Scholar

Ritter, J. R. R., Jordan, M., Christensen, U. R. and Achauer, U. (2001). A mantle plume below the Eifel volcanic fields, Germany. Earth Planet. Sci. Lett. 186: 7–14.CrossRefGoogle Scholar

Roberts, J. J., Duba, A. G., Mathez, E. A., Shankland, T. J. and Kinsler, R. (1999). Carbon-enhanced electrical conductivity during fracture of rocks. J. Geophys. Res. 104: 737–747.CrossRefGoogle Scholar

Roberts, J. J. and Tyburczy, J. A. (1991). Frequency-dependent electrical properties of polycrystalline olivine compacts. J. Geophys. Res. 96: 16205–16222.CrossRefGoogle Scholar

Roberts, J. J. and Tyburczy, J. A. (1999). Partial-melt electrical conductivity: influence of melt-composition. J. Geophys. Res. 104: 7055–7065.CrossRefGoogle Scholar

Ross, J. V. and Bustin, R. M. (1990). The role of strain energy in creep graphitisation of anthracite. Nature 343: 58–60.CrossRefGoogle Scholar

Rumble, D. R. and Hoering, T. C. (1986). Carbon isotope geochemistry of graphite vein deposits from New Hampshire, U.S.A. Geochim. Cosmochim. Acta 50: 1239–1247.CrossRefGoogle Scholar

Schilling, F. R., Partzsch, G. M., Brasse, H. and Schwarz, G. (1997). Partial melting below the magmatic arc in the central Andes deduced from geoelectromagnetic field experiments and laboratory data. Phys. Earth Planet. Inter. 103: 17–31.CrossRefGoogle Scholar

Schmeling, H. (1985). Numerical models on the influence of partial melt on elastic, anelastic and electrical properties of rocks. Part I: elasticity and anelasticity. Phys. Earth Planet. Inter. 41: 105–110.CrossRefGoogle Scholar

Schmeling, H.(1986). Numerical models on the influence of partial melt on elastic, anelastic and electrical properties of rocks. Part II: electrical conductivity. Phys. Earth Planet. Inter. 43: 123–136.CrossRefGoogle Scholar

Schmucker, U. (1970). Anomalies of geomagnetic variations in the Southwestern United States. Bull. Scripps Inst. Ocean., University of California, 13.

Schmucker, U.(1973). Regional induction studies: a review of methods and results. Phys. Earth Planet. Inter. 7: 365–378.CrossRefGoogle Scholar

Schmucker, U.(1978). Auswertungsverfahren Göttingen. In Protokoll Kolloquium Elektromagnetische Tiefenforschung, eds. Haak, V. and Homilius, J.. Free University Berlin, pp. 163–189.Google Scholar

Schmucker, U.(1987). Substitute conductors for electromagnetic response estimates. Pure and Appl. Geophys. 125: 341–367.CrossRefGoogle Scholar

Schmucker, U.(1995). Electromagnetic induction in thin sheets: integral equations and model studies in two dimensions. Geophys. J. Int. 121: 173–190.CrossRefGoogle Scholar

Schultz, A., Kurtz, R. D., Chave, A. D. and Jones, A. G. (1993). Conductivity discontinuities in the upper mantle beneath a stable craton. Geophys. Res. Lett. 20: 2941–2944.CrossRefGoogle Scholar

Schuster, A. (1889). The diurnal variation of terrestrial magnetism. Phil. Trans. Roy. Soc. London A210: 467–518.CrossRefGoogle Scholar

Sénéchal, R., Rondenay, G. S., Mareschal, M., Guilbert, J. and Poupinet, G. (1996). Seismic and electrical anisotropies in the lithosphere across the Grenville Front, Canada. Geophys. Res. Lett. 23: 2255–2258.CrossRefGoogle Scholar

Shankland, T. J. and Ander, M. E. (1983). Electrical conductivity, temperatures, and fluids in the lower crust. J. Geophys. Res. 88: 9475–9484.CrossRefGoogle Scholar

Shankland, T. J., Duba, A., Mathez, E. A. and Peach, C. L. (1997). Increase of electrical conductivity with pressure as an indication of conduction through a solid phase in mid-crustal rocks. J. Geophys. Res. 102: 14741–14750.CrossRefGoogle Scholar

Shankland, T. J., Peyronneau, J. and Poirier, J. -P. (1993). Electrical conductivity of the Earth's lower mantle. Nature 366: 453–455.CrossRefGoogle Scholar

Shankland, T. J. and Waff, H. S. (1977). Partial melting and electrical conductivity anomalies in the upper mantle. J. Geophys. Res. 82: 5409–5417.CrossRefGoogle Scholar

Siegesmund, S., Vollbrecht, A. and Nover, G. (1991). Anisotropy of compressional wave velocities, complex electrical resistivity and magnetic susceptibility of mylonites from the deeper crust and their relation to the rock fabric. Earth Planet. Sci. Lett. 105: 247–259.CrossRefGoogle Scholar

Siemon, B. (1997). An interpretation technique for superimposed induction anomalies. Geophys. J. Int. 130: 73–88.CrossRefGoogle Scholar

Simpson, F. (1999). Stress and seismicity in the lower continental crust: a challenge to simple ductility and implications for electrical conductivity mechanisms. Surveys in Geophysics 20: 201–227.CrossRefGoogle Scholar

Simpson, F.(2000). A three-dimensional electromagnetic model of the southern Kenya Rift: departure from two-dimensionality as a possible consequence of a rotating stress field. J. Geophys. Res. 105: 19321–19334.CrossRefGoogle Scholar

Simpson, F.(2001a). Fluid trapping at the brittle–ductile transition re-examined. Geofluids 1: 123–136.CrossRefGoogle Scholar

Simpson, F.(2001b). Resistance to mantle flow inferred from the electromagnetic strike of the Australian upper mantle. Nature 412: 632–635.CrossRefGoogle Scholar

Simpson, F.(2002a). Intensity and direction of lattice-preferred orientation of olivine: are electrical and seismic anisotropies of the Australian mantle reconcilable? Earth Planet Sci. Lett. 203: 535–547.CrossRefGoogle Scholar

Simpson, F.(2002b). A comparison of electromagnetic distortion and resolution of upper mantle conductivities beneath continental Europe and the Mediterranean using islands as windows. Phys. Earth Planet. Inter. 129: 117–130.CrossRefGoogle Scholar

Simpson, F. and Warner, M. (1998). Coincident magnetotelluric, P-wave and S-wave images of the deep continental crust beneath the Weardale granite, NE England: seismic layering, low conductance and implications against the fluids paradigm. Geophys. J. Int. 133: 419–434.CrossRefGoogle Scholar

Sims, W. E., Bostick, F. X. Jr. and Smith, H. W. (1971). The estimation of magnetotelluric impedance tensor elements from measured data. Geophysics 36: 938–942.CrossRefGoogle Scholar

Smith, T. and Booker, J. (1988). Magnetotelluric inversion for minimum structure. Geophysics 53: 1565–1576.CrossRefGoogle Scholar

Smith, T. and Booker, J.(1991). Rapid inversion of two- and three-dimensional magnetotelluric data. J. Geophys. Res., 96: 3905–3922.CrossRefGoogle Scholar

Soyer, W. and Brasse, H. (2001). A magneto-variation array study in the central Andes of N Chile and SW Bolivia. Geophys. Res. Lett. 28: 3023–3026.CrossRefGoogle Scholar

Spitzer, K. (1993). Observations of geomagnetic pulsations and variations with a new borehole magnetometer down to depths of 3000 m. Geophys. J. Int. 115: 839–848.CrossRefGoogle Scholar

Spitzer, K.(1995). A 3-D finite difference algorithm for dc resistivity modelling using conjugate gradient methods. Geophys. J. Int. 123: 903–914.CrossRefGoogle Scholar

Srivastava, S. P. (1965). Methods of interpretation of magnetotelluric data when the source field is considered. J. Geophys. Res. 70: 945–954.CrossRefGoogle Scholar

Stacey, F. D. (1992). Physics of the Earth. Brisbane: Brookfield Press.Google Scholar

Stalder, R. and Skogby, H. (2003). Hydrogen diffusion in natural and synthetic orthopyroxene. Phys. Chem. Minerals 30: 12–19.CrossRefGoogle Scholar

Stanley, W. D. (1989). Comparison of geoelectrical/tectonic models for suture zones in the western U.S.A. and eastern Europe: are black shales a possible source of high conductivities? Phys. Earth Planet. Inter. 53: 228–238.CrossRefGoogle Scholar

Stauffer, D. and Aharony, A. (1992). Introduction to Percolation Theory, 2nd edn. London: Taylor and Francis.Google Scholar

Sternberg, B. K., Washburne, J. C. and Pellerin, L. (1988). Correction for the static shift in magnetotellurics using transient electromagnetic soundings. Geophysics 53: 1459–1468.CrossRefGoogle Scholar

Stesky, R. M. and Brace, W. F. (1973). Electrical conductivity of serpentinized rocks to 6 kilobars. J. Geophys. Res. 78: 7614–7621.CrossRefGoogle Scholar

Stoerzel, A. (1996). Estimation of geomagnetic transfer functions from non-uniform magnetic fields induced by the equatorial electrojet: a method to determine static shifts in magnetotelluric data. J. Geophys. Res. 101: 917–927.CrossRefGoogle Scholar

Strack, K. M. (1992). Exploration with Deep Transient Electromagnetics. Amsterdam: Elsevier.Google Scholar

Swift, C. M. (1967). A magnetotelluric investigation of an electrical conductivity anomaly in the South Western United States. Ph.D. Thesis, M.I.T., Cambridge, Mass.

Swift, C. M.(1986). A magnetotelluric investigation of an electrical conductivity anomaly in the South Western United States. In Magnetotelluric Methods, ed. Vozoff, K.. Tulsa: Society of Exploration Geophysicists, pp. 156–166.Google Scholar

Tikhonov, A. N. (1950). The determination of the electrical properties of deep layers of the Earth's crust. Dokl. Acad. Nauk. SSR 73: 295–297 (in Russian).Google Scholar

Tikhonov, A. N.(1986). On determining electrical characteristics of the deep layers of the Earth's crust. In Magnetotelluric Methods, ed. Vozoff, K.. Tulsa: Society of Exploration Geophysicists, pp. 2–3.Google Scholar

Ting, S. C. and Hohmann, G. W. (1981). Integral equation modeling of three-dimensional magnetotelluric response. Geophysics 46: 182–197.CrossRefGoogle Scholar

Tipler, P. A. (1991). Physics for Scientists and Engineers. New York: Worth Publishers.Google Scholar

Torres-Verdin, C. and Bostick, F. X. (1992). Principles of spatial surface electric field filtering in magnetotellurics: electromagnetic array profiling (EMAP). Geophysics 57: 603–622.CrossRefGoogle Scholar

Touret, J. (1986). Fluid inclusions in rocks from the lower continental crust. In The Nature of the Lower Continental Crust, eds. Dawson, J. B., Carswell, D. A., Hall, J. and Wedepohl, K. H.. Geological Society Special Publication24: 161–172. Oxford: Blackwell Scientific Publications.Google Scholar

Tyburczy, J. A. and Waff, H. S. (1983). Electrical conductivity of molten basalt and andersite to 25 kilobars pressure: geophysical significance and implications for charge transport and melt structure. J. Geophys. Res. 88: 2413–2430.CrossRefGoogle Scholar

Valdivia, J. A., Sharma, A. S. and Papadopoulos, K. (1996). Prediction of magnetic storms by nonlinear models. Geophys. Res. Lett. 23: 2899–2902.CrossRefGoogle Scholar

Vanyan, L. L. and Gliko, A. O. (1999). Seismic and electromagnetic evidence of dehydration as a free water source in the reactivated crust. Geophys. J. Int. 137: 159–162.CrossRefGoogle Scholar

Vasseur, G. and Weidelt, P. (1977). Bimodal electromagnetic induction in non-uniform thin sheets with an application to the northern Pyrenean induction anomaly. Geophys. J. R. Astr. Soc. 51: 669–690.CrossRefGoogle Scholar

Vozoff, K. (1972). The magnetotelluric method in the exploration of sedimentary basins. Geophysics 37: 98–141.CrossRefGoogle Scholar

Waff, H. S. (1974). Theoretical considerations on electrical conductivity in a partially molten mantle and implications for geothermometry. J. Geophys. Res. 79: 4003–4010.CrossRefGoogle Scholar

Wait, J. R. (1954). On the relation between telluric currents and the Earth's magnetic field. Geophysics 19: 281–289.CrossRefGoogle Scholar

Wang, L. J. and Lilley, F. E. M. (1999). Inversion of magnetometer array data by thin-sheet modelling. Geophys. J. Int. 137: 128–138.CrossRefGoogle Scholar

Wang, L., Zhang, Y. and Essene, E. (1996). Diffusion of the hydrous component in pyrope. Amer. Mineral. 81: 706–718.CrossRefGoogle Scholar

Wannamaker, P. E., Hohmann, G. W. and Ward, S. H. (1984a). Magnetotelluric responses of three-dimensional bodies in layered Earths. Geophysics 49: 1517–1533.CrossRefGoogle Scholar

Wannamaker, P. E., Hohmann, G. W. and San Filipo, W. A. (1984b). Electromagnetic modelling of three-dimensional bodies in layered Earths using integral equations. Geophysics 48: 1402–1405.Google Scholar

Wannamaker, P. E., Stodt, J. A. and Rijo, L. (1986). A stable finite element solution for two-dimensional magnetotelluric modelling. Geophys. J. R. Astr. Soc. 88: 277–296.CrossRefGoogle Scholar

Wannamaker, P. E. (2000). Comment on ‘The petrological case for a dry lower crust’ by Bruce W. D. Yardley and John W. Valley. J. Geophys. Res. 105: 6057–6064.CrossRefGoogle Scholar

Weaver, J. T. (1994). Mathematical Methods for Geo-Electromagnetic Induction. Taunton, Somerset, UK: Research Studies Press Ltd.Google Scholar

Wei, W., Unsworth, M., Jones, A. G.et al. (2001). Detection of widespread fluids in the Tibetan crust by magnetotelluric studies. Science 292: 716–718.CrossRefGoogle ScholarPubMed

Weidelt, P. (1972). The inverse problem of geomagnetic induction. Z. Geophys. 38: 257–289.Google Scholar

Weidelt, P.(1975). Electromagnetic induction in three-dimensional structures. J. Geophys. Res. 41: 85–109.Google Scholar

Weidelt, P.(1985). Construction of conductance bounds from magnetotelluric impedances. J. Geophys. 57: 191–206.Google Scholar

Wiese, H. (1962). Geomagnetische tiefensondierung. Teil II: Die Streichrichtung der Untergrundstrukturen des elektrischen Widerstandes, erschlossen aus geomagnetischen variationen. Geofis. Pura et Appl. 52: 83–103.CrossRefGoogle Scholar

Winch, D. E. (1981). Spherical harmonic analysis of geomagnetic tides, 1964–1965. Phil. Trans. Roy. Soc. Lond. A303: 1–104.CrossRefGoogle Scholar

Woods, S. C., Mackwell, S. and Dyar, D. (2000). Hydrogen in diopside: diffusion profiles. Amer. Mineral. 85: 480–487.CrossRefGoogle Scholar

Xu, Y., Poe, B. T., Shankland, T. J. and Rubie, D. C. (1998). Electrical conductivity of olivine, wadsleyite, and ringwoodite under upper-mantle conditions. Science 280: 1415–1418.CrossRefGoogle ScholarPubMed

Xu, Y. and Shankland, T. J. (1999). Electrical conductivity of orthopyroxene and its high pressure phases. Geophys. Res. Lett. 26: 2645–2648.CrossRefGoogle Scholar

Xu, Y., Shankland, T. J. and Poe, B. T. (2000). Laboratory-based electrical conductivity in the Earth's mantle. J. Geophys. Res. 105: 27865–27875.CrossRefGoogle Scholar

Yardley, B. W. D. (1986). Is there water in the deep continental crust? Nature 323: 111.CrossRefGoogle Scholar

Yardley, B. W. D. and Valley, J. W. (1997). The petrological case for a dry lower crust. J. Geophys. Res. 102: 12173–12185.CrossRefGoogle Scholar

Yardley, B. W. D. and Valley, J. W. (2000). Reply to Wannamaker (2000) “Comment on ‘The petrological case for a dry lower crust’”J. Geophys. Res. 105: 6065–6068.CrossRefGoogle Scholar

Zhdanov, M. S., Varentsov, I. M., Weaver, J. T., Golubev, N. G. and Krylov, V. A. (1997). Methods for modelling electromagnetic fields. Results from COMMEMI – the international project on the comparison of modelling methods for electromagnetic induction. J. Appl. Geophys. 37: 133–271.CrossRefGoogle Scholar

Zhang, P., Pedersen, L. B., Mareschal, M. and Chouteau, M. (1993). Channelling contribution to tipper vectors: a magnetic equivalent to electrical distortion. Geophys. J. Int. 113: 693–700.CrossRefGoogle Scholar

Zonge, K. L. and Hughes, L. H. (1991). Controlled-source audio-frequency magnetotellurics. In Electromagnetic Methods in Applied Geophysics. Volume 2: Applications, Part B., ed. Nabighian, M. C.. Tulsa: Society of Exploration Geophysicists, pp. 713–809.CrossRefGoogle Scholar

Achache, J., Courtillot, V., Ducruix, J. and LeMouel, J. L. (1980). The late 1960s secular variation impulse: further constraints on deep mantle conductivity. Phys. Earth Planet. Inter. 23: 72–75.CrossRefGoogle Scholar

Agarwal, A. K. and Weaver, J. T. (1990). A three-dimensional numerical study of induction in southern India by an electrojet source. Phys. Earth Planet. Inter. 60: 1–17.CrossRefGoogle Scholar

Akima, H. (1978). A method of bivariate interpolation and smooth surface fitting for irregularly distributed data points. ACM Trans. Math. Software 4: 148–159.CrossRefGoogle Scholar

Aldredge, L. R. (1977). Deep mantle conductivity. J. Geophys. Res. 82: 5427–5431.CrossRefGoogle Scholar

Allmendinger, R. W., Sharp, J. W., Tish, D.et al. (1983). Cenozoic and Mesozoic structure of the eastern basin and range province, Utah, from COCORP seismic-reflection data. Geology, 11: 532–536.2.0.CO;2>CrossRefGoogle Scholar

Archie, G. E. (1942). The electrical resistivity log as an aid to determining some reservoir characteristics. Trans. A. I. M. E. 146: 389–409.Google Scholar

Bahr, K. (1988). Interpretation of the magnetotelluric impedance tensor: regional induction and local telluric distortion. J. Geophys. 62: 119–127.Google Scholar

Bahr, K. (1991). Geological noise in magnetotelluric data: a classification of distortion types. Phys. Earth Planet. Inter. 66: 24–38.CrossRefGoogle Scholar

Bahr, K. (1997). Electrical anisotropy and conductivity distribution functions of fractal random networks and of the crust: the scale effect of connectivity. Geophys. J. Int. 130: 649–660.CrossRefGoogle Scholar

Bahr, K., Bantin, M., Jantos, Chr., Schneider, E. and Storz, W. (2000). Electrical anisotropy from electromagnetic array data: implications for the conduction mechanism and for distortion at long periods. Phys. Earth Planet. Inter. 119: 237–257.CrossRefGoogle Scholar

Bahr, K. and Duba, A. (2000). Is the asthenosphere electrically anisotropic?Earth Planet. Sci. Lett. 178: 87–95.CrossRefGoogle Scholar

Bahr, K. and Filloux, J. H. (1989). Local Sq response functions from EMSLAB data. J. Geophys. Res. 94: 14.195–14.200.CrossRefGoogle Scholar

Bahr, K., Olsen, N. and Shankland, T. J. (1993). On the combination of the magnetotelluric and the geomagnetic depth sounding method for resolving an electrical conductivity increase at 400 km depth. Geophys. Res. Lett. 20: 2937–2940.CrossRefGoogle Scholar

Bahr, K. and Simpson, F. (2002). Electrical anisotropy below slow- and fast-moving plates: paleoflow in the upper mantle?Science 295: 1270–1272.CrossRefGoogle ScholarPubMed

Bahr, K., Smirnov, M., Steveling, E. and BEAR working group (2002). A gelation analogy of crustal formation derived from fractal conductive structures. J. Geophys. Res. 107: (B11) 2314, doi: 10.1029/2001JB000506.CrossRefGoogle Scholar

Bai, D., Meju, M. and Liao, Z. (2001). Magnetotelluric images of deep crustal structure of the Rehai geothermal field near Tengchong, Southern China. Geophys. J. Int. 147: 677–687.CrossRefGoogle Scholar

Banks, R. J. (1969). Geomagnetic variations and the electrical conductivity of the upper mantle. Geophys. J. R. Astr. Soc 17: 457–487.CrossRefGoogle Scholar

Bell, D. R. and Rossman, G. R. (1992). Water in the Earth's mantle: the role of nominally anhydrous minerals. Science 255: 1391–1397.CrossRefGoogle ScholarPubMed

Berdichevsky, M. N. (1999). Marginal notes on magnetotellurics. Surv. Geophys., 20: 341–375.CrossRefGoogle Scholar

Berdichevsky, M. N. and Dimitriev, V. I. (1976). Distortion of magnetic and electric fields by near-surface lateral inhomogeneities. Acta Geodaet., Geophys. et Montanist. Acad. Sci. Hung. 11: 447–483.Google Scholar

Bigalke, J. (2003). Analysis of conductivity of random media using DC, MT, and TEM. Geophysics 68: 506–515.CrossRefGoogle Scholar

BIRPS and ECORS (1986). Deep seismic profiling between England, France and Ireland. J. Geol. Soc. London 143: 45–52.CrossRef

Boas, M. L. (1983). Mathematical Methods in the Physical Sciences, 2nd edn. New York: Wiley & Sons.Google Scholar

Brasse, H., Lezaeta, P., Rath, V., Schwalenberg, K., Soyer, W. and Haak, V. (2002). The Bolivian Altiplano conductivity anomaly. J. Geophys. Res. 107: (B5), doi: 10.1029/2001JB000391.CrossRefGoogle Scholar

Brasse, H. and Junge, A. (1984). The influence of geomagnetic variations on pipelines and an application of large-scale magnetotelluric depth sounding, J. Geophys. 55: 31–36.Google Scholar

Brasse, H. and Rath, V. (1997). Audiomagnetotelluric investigations of shallow sedimentary basins in Northern Sudan. Geophys. J. Int. 128: 301–314.CrossRefGoogle Scholar

Brown, C. (1994). Tectonic interpretation of regional conductivity anomalies. Surv. Geophys. 15: 123–157.CrossRefGoogle Scholar

Cagniard, L. (1953). Basic theory of the magnetotelluric method of geophysical prospecting. Geophysics 18: 605–645.CrossRefGoogle Scholar

Campbell, W. H. (1987). Introduction to electrical properties of the Earth's mantle. Pure Appl. Geophys. 125: 193–204.CrossRefGoogle Scholar

Campbell, W. H.(1997). Introduction to Geomagnetic Fields. Cambridge: Cambridge University Press.Google Scholar

Cantwell, T. (1960). Detection and analysis of low-frequency magnetotelluric signals. Ph.D. Thesis, Dept. Geol. Geophys. M.I.T., Cambridge, Mass.

Chamberlain, T. C. (1899). On Lord Kelvin's address on the age of the Earth. Annual Report of the Smithsonian Institution, pp. 223–246.

Chapman, D. S. and Furlong, K. P. (1992). Thermal state of the continental crust. In The Continental Lower Crust, eds. Fountain, D. M., Arculus, R. J. and Kay, R. W.. Amsterdam: Elsevier, pp. 81–143.Google Scholar

Chapman, S. (1919). The solar and lunar diurnal variations of terrestrial magnetism. Phil. Trans. Roy. Soc. London A218: 1–118.Google Scholar

Chapman, S. and Ferraro, V. C. A. (1931). A new theory of magnetic storms. Terr. Mag. 36: 77–97.CrossRefGoogle Scholar

Chave, A. D. and Smith, J. T. (1994). On electric and magnetic galvanic distortion tensor decompositions. J. Geophys. Res. 99: 4669–4682.CrossRefGoogle Scholar

Clarke, J., Gamble, T. D., Goubau, W. M., Koch, R. H. and Miracky, R. F. (1983). Remote-reference magnetotellurics: equipment and procedures. Geophys. Prosp. 31: 149–170.CrossRefGoogle Scholar

Constable, S. C., Parker, R. L. and Constable, C. G. (1987). Occam's inversion: A practical algorithm for generating smooth models from EM sounding data. Geophysics 52: 289–300.CrossRefGoogle Scholar

Constable, S. C., Orange, A. S., Hoversten, G. M. and Morrison, H. F. (1998). Marine magnetotellurics for petroleum exploration. Part I: a seafloor equipment system. Geophysics 63: 816–825.CrossRefGoogle Scholar

Constable, S. C., Shankland, T. J. and Duba, A. (1992). The electrical conductivity of an isotropic olivine mantle. J. Geophys. Res. 97: 3397–3404.CrossRefGoogle Scholar

Davies, G. F. and Richards, M. A. (1992). Mantle convection. J. Geol. 100: 151–206.CrossRefGoogle Scholar

Debayle, E. and Kennett, B. L. N. (2000). The Australian continental upper mantle: structure and deformation inferred from surface waves, J. Geophys. Res. 105: 25423–25450.CrossRefGoogle Scholar

DEKORP Research Group (1991). Results of the DEKORP 1 (BELCORP-DEKORP) deep seismic reflection studies in the western part of the Rhenish Massif. Geophys. J. Int. 106: 203–227.CrossRef

Dobbs, E. R. (1985). Electromagnetic Waves. London: Routledge & Kegan Paul.Google Scholar

Dosso, H. W. and Oldenburg, D. W. (1991). The similitude equation in magnetotelluric inversion. Geophys. J. Int. 106: 507–509.CrossRefGoogle Scholar

Duba, A., Heard, H. C. and Schock, R. N. (1974). Electrical conductivity of olivine at high pressure and under controlled oxygen fugacity. J. Geophys. Res. 79: 1667–1673.CrossRefGoogle Scholar

Duba, A., Heikamp, S., Meurer, W., Nover, G. and Will, G. (1994). Evidence from borehole samples for the role of accessory minerals in lower-crustal conductivity. Nature 367: 59–61.CrossRefGoogle Scholar

Duba, A. and Nicholls, I. A. (1973). The influence of oxidation state on the electrical conductivity of olivine. Earth Planet. Sci. Lett. 18: 279–284.CrossRefGoogle Scholar

Duba, A., Peyronneau, J., Visocekas, F. and Poirier, J.-P. (1997). Electrical conductivity of magnesiowüstite/perovskite produced by laser heating of synthetic olivine in the diamond anvil cell. J. Geophys. Res. 102: 27723–27728.CrossRefGoogle Scholar

Duba, A. and Shankland, T. J. (1982) Free carbon and electrical conductivity in the mantle. Geophys. Res. Lett. 11: 1271–1274.CrossRefGoogle Scholar

Duba, A. and der Gönna, J. (1994) Comment on change of electrical conductivity of olivine associated with the olivine–spinel transition. Phys. Earth Planet. Inter. 82: 75–77.CrossRefGoogle Scholar

Echternacht, F., Tauber, S., Eisel, M., Brasse, H., Schwarz, G. and Haak, V. (1997). Electromagnetic study of the active continental margin in northern Chile. Phys. Earth Planet. Inter. 102: 69–87.CrossRefGoogle Scholar

Eckhardt, D. H. (1963). Geomagnetic induction in a concentrically stratified Earth. J. Geophys. Res. 68: 6273–6278.CrossRefGoogle Scholar

Edwards, R. E. and Nabighian, M. N. (1981). Extensions of the magnetometric resistivity (MMR) method. Geophysics 46: 459–460.Google Scholar

Egbert, G. D. (1997). Robust multiple-station magnetotelluric data processing. Geophys. J. Int. 130: 475–496.CrossRefGoogle Scholar

Egbert, G. D. and Booker, J. R. (1986). Robust estimation of geomagnetic transfer functions. Geophys. J. R. Astr. Soc. 87: 173–194.CrossRefGoogle Scholar

Eisel, M. and Bahr, K. (1993). Electrical anisotropy under British Columbia: interpretation after magnetotelluric tensor decomposition. J. Geomag. Geoelectr. 45: 1115–1126.CrossRefGoogle Scholar

Eisel, M. and Haak, V. (1999). Macro-anisotropy of the electrical conductivity of the crust: a magneto-telluric study from the German Continental Deep Drilling site (KTB). Geophys. J. Int. 136: 109–122.CrossRefGoogle Scholar

ELEKTB group (1997). KTB and the electrical conductivity of the crust. J. Geophys. Res. 102: 18289–18305.CrossRef

Engels, M., Korja, T. and BEAR Working Group (2002). Multisheet modeling of the electrical conductivity structure in the Fennoscandian Shield. Earth, Planets and Space 54: 559–573.CrossRefGoogle Scholar

Evans, C. J., Chroston, P. N. and Toussaint-Jackson, J. E. (1982). A comparison study of laboratory measured electrical conductivity in rocks with theoretical conductivity based on derived pore aspect ratio spectra. Geophys. J. R. Astr. Soc. 71: 247–260.CrossRefGoogle Scholar

Ferguson, I. J., Lilley, F. E. M. and Filloux, J. H. (1990). Geomagnetic induction in the Tasman Sea and electrical conductivity structure beneath the Tasman seafloor. Geophys. J. Int. 102: 299–312.CrossRefGoogle Scholar

Filloux, J. H. (1973). Techniques and instrumentation for studies of natural electromagnetic induction at sea. Phys. Earth Planet. Inter. 7: 323–338.CrossRefGoogle Scholar

Filloux, J. H. (1987). Instrumentation and experimental methods for oceanic studies. In Geomagnetism, Volume 1, ed. Jacobs, J. A.. London: Academic Press, pp. 143–248.Google Scholar

Fiordelisi, A., Manzella, A., Buonasorte, G., Larsen, J. C. and Mackie, R. L. (2000). MT methodology in the detection of deep, water-dominated geothermal systems. In Proceedings World Geothermal Congress, eds. Iglesias, E., Blackwell, D., Hunt, T., Lund, J. and Tamanyu, S.. Tokyo: International Geothermal Association, pp. 1121–1126.Google Scholar

Fischer, G. and Quang, B. V. (1982). Parameter trade-off in one-dimensional magnetotelluric modelling. J. Geophys. 51: 206–215.Google Scholar

Fischer, G., Schnegg, P.-A., Pegiron, M. and Quang, B. V. (1981). An analytic one-dimensional magnetotelluric inversion scheme. Geophys. J. R. Astr. Soc. 67: 257–278.CrossRefGoogle Scholar

Freund, R. J. and Wilson, W. J. (1998). Regression Analysis: Statistical modeling of a response variable. San Diego: Academic Press.Google Scholar

Frost, B. R. (1979). Mineral equilibria involving mixed volatiles in a C–O–H fluid phase: the stabilities of graphite and siderite. Amer. J. Sci., 279: 1033–1059.CrossRefGoogle Scholar

Frost, B. R., Fyfe, W. S., Tazaki, K. and Chan, T. (1989). Grain boundary graphite in rocks and implications for high electrical conductivity in the crust. Nature 340: 134–136.CrossRefGoogle Scholar

Furlong, K. P. and Fountain, D. M. (1986). Continental crustal underplating: thermal considerations and seismic-petrologic consequences. J. Geophys. Res. 91: 8285–8294.CrossRefGoogle Scholar

Furlong, K. P. and Langston, C. A. (1990). Geodynamic aspects of the Loma Prieta Earthquake, Geophys. Res. Lett. 17: 1457–1460.CrossRefGoogle Scholar

Gaherty, J. B. and Jordan, T. H. (1995). Lehmann discontinuity as the base of an anisotropic layer beneath continents. Science 268: 1468–1471.CrossRefGoogle ScholarPubMed

Gamble, T. D., Goubau, W. M. and Clarke, J. (1979). Magnetotellurics with a remote magnetic reference. Geophysics 44: 53–68.CrossRefGoogle Scholar

Gauss, C. F. (1838). Erläuterungen zu den Terminszeichnungen und den Beobachtungszahlen. In Resultate aus den Beobachtungen des magnetischen Vereins im Jahre 1837, eds. Gauss, C. F. and Weber, W.. Göttingen: Dieterichsche Buchhandlung, pp. 130–137.Google Scholar

Gauss, C. F.(1839). Allgemeine Theorie des Erdmagnetismus. In Resultate aus den Beobachtungen des magnetischen Vereins im Jahre 1838, eds. Gauss, C. F. and Weber, W.. Göttingen: Dieterichsche Buchhandlung, pp. 1–57.Google Scholar

Glassley, W. E. (1982). Fluid evolution and graphite genesis in the deep continental crust. Nature 295: 229–231.CrossRefGoogle Scholar

Goubau, W. M., Gamble, T. D. and Clarke, J. (1979). Magnetotelluric data analysis: removal of bias. Geophysics 43: 1157–1166.CrossRefGoogle Scholar

Graham, G. (1724). An account of observations made of the variation of the horizontal needle at London in the latter part of the year 1722 and beginning 1723. Phil. Trans. Roy. Soc. London 383: 96–107.CrossRefGoogle Scholar

Grammatica, N. and Tarits, P. (2002). Contribution at satellite altitude of electromagnetically induced anomalies arising from a three-dimensional heterogeneously conducting Earth, using Sq as an inducing source field. Geophys. J. Int. 151: 913–923.CrossRefGoogle Scholar

Groom, R. W. and Bahr, K. (1992). Correction for near-surface effects: decomposition of the magnetotelluric impedance tensor and scaling corrections for regional resistivities: a tutorial. Surv. Geophys. 13: 341–379.CrossRefGoogle Scholar

Groom, R. W. and Bailey, R. C. (1989). Decomposition of the magnetotelluric impedance tensor in the presence of local three-dimensional galvanic distortion. J. Geophys. Res. 94: 1913–1925.CrossRefGoogle Scholar

Groot-Hedlin, C. (1991). Removal of static shift in two dimensions by regularized inversion. Geophysics 56: 2102–2106.CrossRefGoogle Scholar

Groot-Hedlin, C. and Constable, S. C. (1990). Occam's inversion to generate smooth, two-dimensional models from magnetotelluric data. Geophysics 55: 1613–1624.CrossRefGoogle Scholar

Guéguen, Y., David, Chr. and Gavrilenko, P. (1991). Percolation networks and fluid transport in the crust. Geophys. Res. Lett. 18: 931–934.CrossRefGoogle Scholar

Guéguen, Y. and Palciauskas, V. (1994). Introduction to the Physics of Rocks. Princeton: Princeton University Press.Google Scholar

Haak, V. and Hutton, V. R. S. (1986). Electrical resistivity in continental lower crust. In The Nature of the Lower Continental Crust, eds. Dawson, J. B., Carswell, D. A., Hall, J., and Wedepohl, K. H.. Geological Society Special Publication 24: 35–49. Oxford: Blackwell Scientific Publications.Google Scholar

Haak, V., Stoll, J. and Winter, H. (1991). Why is the electrical resistivity around KTB hole so low?Phys. Earth Planet. Inter. 66: 12–23.CrossRefGoogle Scholar

Hamano, Y. (2002). A new time-domain approach for the electromagnetic induction problem in a three-dimensional heterogeneous Earth. Geophys. J. Int. 150: 753–769.CrossRefGoogle Scholar

Hashin, Z. and Shtrikman, S. (1962). A variational approach to the theory of the effective magnetic permeability of multiphase materials. J. Appl. Phys. 33: 3125–3131.CrossRefGoogle Scholar

Hautot, S. and Tarits, P. (2002). Effective electrical conductivity of 3-D heterogeneous porous media. Geophys. Res. Lett. 29, No. 14, 10.1029/2002GL014907.CrossRefGoogle Scholar

Hautot, S., Tarits, P., Whaler, K., Gall, B., Tiercelin, J-J and Turdu, C. (2000). Deep structure of the Baringo Rift Basin (central Kenya) from three-dimensional magnetotelluric imaging: implications for rift evolution. J. Geophys Res. 105: 23 493–23 518.CrossRefGoogle Scholar

Heinson, G. S. (1999). Electromagnetic studies of the lithosphere and asthenosphere. Surv. Geophys. 20: 229–255.CrossRefGoogle Scholar

Heinson, G. S. and Lilley, F. E. M. (1993). An application of thin sheet electromagnetic modelling to the Tasman Sea. Phys. Earth Planet. Inter. 81: 231–251.CrossRefGoogle Scholar

Hermance, J. F. (1979). The electrical conductivity of materials containing partial melt: a simple model of Archie's law. Geophys. Res. Lett. 6: 613–616.CrossRefGoogle Scholar

Hirsch, L. M, Shankland, T. and Duba, A. (1993). Electrical conduction and polaron mobility in Fe-bearing olivine. Geophys. J. Int. 114: 36–44.CrossRefGoogle Scholar

Hobbs, B. A. (1992). Terminology and symbols for use in studies of electromagnetic induction in the Earth. Surv. Geophys., 13: 489–515.CrossRefGoogle Scholar

Hohmann, G. W. (1975). Three-dimensional induced polarisation and electromagnetic modeling. Geophysics 40: 309–324.CrossRefGoogle Scholar

Hoversten, G. M., Morrison, H. F. and Constable, S. C. (1998). Marine magnetotellurics for petroleum exploration, Part II: Numerical analysis of subsalt resolution. Geophysics 63: 826–840.CrossRefGoogle Scholar

Huber, P. J. (1981). Robust Statistics. New York: John Wiley & Sons.CrossRefGoogle Scholar

Huenges, E., Engeser, B., Erzinger, J., Kessels, W., Kück, J. and Pusch, G. (1997). The permeable crust: geohydraulic properties down to 9101 m depth. J. Geophys. Res. 102: 18255–18265.CrossRefGoogle Scholar

Hyndman, R. D. and Shearer, P. M. (1989). Water in the lower crust: modelling magnetotelluric and seismic reflection results. Geophys. J. R. Astr. Soc. 98: 343–365.CrossRefGoogle Scholar

Jackson, J. D. (1975). Classical Electrodynamics, 2nd edn. New York: John Wiley & Sons.Google Scholar

Jenkins, G. M. and Watts, D. G. (1968). Spectral Analysis and its Applications. San Francisco: Holden-Day.Google Scholar

Ji, S., Rondenay, S., Mareschal, M. and Senechal, G. (1996). Obliquity between seismic and electrical anisotropies as a potential indicator of movement sense for ductile shear zones in the upper mantle. Geology 24: 1033–1036.2.3.CO;2>CrossRefGoogle Scholar

Jödicke, H. (1992). Water and graphite in the Earth's crust – an approach to interpretation of conductivity models. Surv. Geophys. 13: 381–407.CrossRefGoogle Scholar

Jones, A. G. (1977). Geomagnetic induction studies in southern Scotland. Ph.D. Thesis, University of Edinburgh.

Jones, A. G.(1982). On the electrical crust–mantle structure in Fennoscandia: no Moho, and the asthenosphere revealed?Geophys. J. R. Astr. Soc. 68: 371–388.CrossRefGoogle Scholar

Jones, A. G.(1983). The problem of current channelling: a critical review. Geophysical Surveys 6: 79–122.CrossRefGoogle Scholar

Jones, A. G.(1992). Electrical conductivity of the continental lower crust. In Continental Lower Crust, eds. Fountain, D. M., Arculus, R. J. and Kay, R. W.. Amsterdam: Elsevier, pp. 81–143.Google Scholar

Jones, A. G.(1999). Imaging the continental upper mantle using electromagnetic methods. Lithos 48: 57–80.CrossRefGoogle Scholar

Jones, A. G., Groom, R. W., and Kurtz, R. D. (1993). Decomposition and modelling of the BC87 data set. J. Geomag. Geoelectr. 45: 1127–1150.CrossRefGoogle Scholar

Jones, F. W. and Pascoe, L. J. (1971). A general computer program to determine the perturbation of alternating electric currents in a two-dimensional model of a region of uniform conductivity with an embedded inhomogeneity. Geophys. J. R. Astr. Soc. 24: 3–30.Google Scholar

Jones, F. W. and Pascoe, L. J.(1972). The perturbation of alternating geomagnetic fields by three-dimensional conductivity inhomogeneities. Geophys. J. R. Astr. Soc. 27: 479–485.CrossRefGoogle Scholar

Jones, F. W. and Price, A. T. (1970). The perturbations of alternating geomagnetic fields by conductivity anomalies. Geophys. J. R. Astr. Soc. 20: 317–334.CrossRefGoogle Scholar

Jordan, T. H. (1978). Composition and development of the continental tectosphere. Nature 274: 544–548.CrossRefGoogle Scholar

Junge, A. (1990). A new telluric KCl probe using Filloux's Ag–AgCl electrode. Pure and Applied Geophysics 134: 589–598.CrossRefGoogle Scholar

Junge, A. (1994) Induzierte erdelektrische Felder–neue Beobachtungen in Norddeutschland und im Bramwald. Habilitation Thesis. Göttingen.

Karato, S. (1990). The role of hydrogen in the electrical conductivity of the upper mantle. Nature 347: 272–273.CrossRefGoogle Scholar

Karato, S. and Jung, H. (2003). Effects of pressure on high-temperature dislocation creep in olivine. Phil. Mag. 83, 401–414.CrossRefGoogle Scholar

Kariya, K. A. and Shankland, T. J. (1983). Electrical conductivity of dry lower crustal rocks. Geophysics 48: 52–61.CrossRefGoogle Scholar

Katsube, T. J. and Mareschal, M. (1993). Petrophysical model of deep electrical conductors: graphite lining as a source and its disconnection during uplift. J. Geophys. Res., 98: 8019–8030.CrossRefGoogle Scholar

Keller, G. V. and Frischknecht, F. C. (1966). Electrical methods in geophysical prospecting. In International Series of Monographs in Electromagnetic Waves, 10, eds. Cullen, A. L., Fock, V. A., and Wait, J. R.. Oxford: Pergammon Press.Google Scholar

Kellet, R. L., Mareschal, M. and Kurtz, R. D. (1992). A model of lower crustal electrical anisotropy for the Pontiac Subprovince of the Canadian Shield. Geophys. J. Int. 111: 141–150.CrossRefGoogle Scholar