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Diamond and coesite in ultrahigh-pressure–ultrahigh-temperature granulites from Ceuta, Northern Rif, northwest Africa

Published online by Cambridge University Press:  05 July 2018

M. D. Ruiz-Cruz  and
C. Sanz de Galdeano
M. D. Ruiz-Cruz*
Affiliation:
Departamento de Química Inorganica, Cristalografía y Mineralogía, Facultad de Ciencias, Universidad de Málaga, 29071 Málaga, Spain
C. Sanz de Galdeano
Affiliation:
Instituto Andaluz de Ciencias de la Tierra, CSIC-Universidad de Granada. Facultad de Ciencias, 18071 Granada, Spain
*
E-mail: mdruiz@uma.es
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Abstract

Diamond and coesite occur in granulites of the Internal Zone of the Rif belt in northwest Africa. Diamond, identified by optical microscopy, electron microprobe analysis, Raman spectroscopy, cathodoluminescence and microstructural electron backscattered diffraction, is present as inclusions up to 20 μm across in garnet, K-feldspar, coesite relics and quartz. Thermobarometric estimates yield P >4.3 GPa and T >1100°C, which corresponds to a depth of formation >150 km. The estimates suggest that the diamond-bearing peridotites and adjacent crustal rocks experienced similar P–T conditions. If this is correct, there is an old (undated) core in the Betic–Rif cordillera and the current models of the tectonic evolution of the area, which are based on 'full Alpine' evolution, must be revised. This discovery provides further valuable information about the complex geotectonic environment of the southeast Spain and north Moroccan collisional orogen.

Keywords

backscattered electron diffractiondiamondcoesiteEBSDmetamorphic diamondUHP–UHTBetic-Rif Alpine range
Type
Research Article
Information
Mineralogical Magazine , Volume 76 , Issue 3 , June 2012 , pp. 683 - 704
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2016

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References

Azan˜ón, J. and Goffé, B. (1997) Ferro- and magnesiocarpholite assemblages as record of high-P, low-T metamorphism in the Central Alpujárrides, Betic Cordillera (SE Spain). Europea. Journal of Mineralogy, 9, 1035—1051 CrossRefGoogle Scholar
Balanyá, J.C., García-Dueñas, V. and Azan˜ón, J.M. (1997) Alternating contractional and extensional events in the Alpujarride nappes of the Alborán Domain (Betics, Gibraltar Arc). Tectonics, 16, 226—238 CrossRefGoogle Scholar
Bernard-Griffith, J., Cantagrel, J.M. and Kornprobst, J. (1977) Age des gneiss du Hacho de Ceuta: un événement thermique Hercynien dans le zone interne du Rif. RAST Rennes Abstract, 64..Google Scholar
Blichert-Toft, J., Albaréde, F. and Kornprobst, J. (1999) Lu-Hf isotope systematics of garnet pyroxenites from Beni Bousera, Morocco: implications for basalt origin. Science, 283, 1303—1306 CrossRefGoogle ScholarPubMed
Bouybaouene, M.L., Goffé, B. and Michard, A. (1995) High-pressure, low-temperature metamorphism in the Sebtides nappes, northern Rif, Morocco. Geogaceta, 17, 117—119 Google Scholar
Boyer, H., Smith, D.C., Chopin, Ch. and Lasnier, B. (1985) Raman microprobe (RMP) determinations of natural and synthetic coesite. Physics and Chemistry of Minerals, 12, 45—48.Google Scholar
Brandelik, A. and Massonne, H.-J. (2004) PTGIBBS - an EXCELTM Visual Basic program for computing and visualizing thermodynamic functions and equilibria of rock-forming minerals. Computer Geoscience, 30, 909—923 CrossRefGoogle Scholar
Carrington, D.P. and Harley, S.L. (1995) The stability of osumilite in metapelitic granulites. Journal of Metamorphi. Geology, 13, 613—625 Google Scholar
Chopin, C. (1984) Coesite and pure pyrope in highgrade blueschists of the western Alps: a first record and some consequences. Contributions to Mineralogy an. Petrology, 86, 107—118 Google Scholar
Davies, G.R., Nixon, P.H., Pearson, D.G. and Obata, M. (1993) Tectonic implications of graphitized diamonds from the Ronda peridotite massif, southern Spain. Geology, 21, 471—474 2.3.CO;2>CrossRefGoogle Scholar
Didon, J., Durand-Delga, M. and Kornprobst, J. (1973) Homologies géologiques entre les deux rives du Dé troit de Gibraltar. Bulletin de la Societé géologique d. France, 15, 77—105 Google Scholar
Dobrzhinetskaya, L., Eide, E., Korneliussen, A., Larsen, R., Millege, J., Posukhova, T.V., Smith, D.S., Sturt, B.A., Taylor, W.R. and Tronnes, R. (1995) Diamond in metamorphic rocks of the Western Gneiss Region in Norway. Geology, 23, 597—600 2.3.CO;2>CrossRefGoogle Scholar
Dobrzhinetskaya, L.F., Green, H.W. II and Dickerson, R.M. (2001) Metamorphic diamonds: mechanism of growth and inclusion of oxides. Geology, 29, 263—266 2.0.CO;2>CrossRefGoogle Scholar
El Atrassi, F., Brunet, F., Bouybaouene, M., Chopin, Ch. and Chazot, G. (2011) Melting textures and microdiamonds preserved in graphite pseudomorphs from the Beni Bousera peridotite massif, Morocco. Europea. Journal of Mineralogy, 23, 157—168 CrossRefGoogle Scholar
El Maz, A. (1989) Le métamorphisme régional mésocatazonal de la série métapélitique de Sidi Mohamed Filali et de l’unité granulitique de Beni Bousera, Rif interne, Maroc. Unpublished PhD thesis, Université Paris VI, Paris, 259 pp.Google Scholar
El Maz, A. and Guiraud, M. (2001) Paragenése a faible variance dans les métapélites de la série de Filali (Rif interne Marocain); description, interprétation et conséquence géodynamique. Bulletin de la Societé Géologique de France, 172, 469—485 CrossRefGoogle Scholar
Ernst, W.G., Hacker, B.R. and Liou, J.G. (2007) Petrotectonics of ultrahigh-pressure crustal and upper-mantle rocks - implications for Phanerozoic collisional orogens. Geological Society of America, Special Paper, 433, 27—49.Google Scholar
Fallot, P. (1948) Les Cordilléres Bétiques. Estudio. geológicos, 4, 83—172 Google Scholar
Ferry, J.M. and Spear, F.S. (1978) Experimental calibration of the partition of Fe and Mg between biotite and garnet. Contributions to Mineralogy an. Petrology, 66, 113—117 Google Scholar
Frezzotti, M.L., Selverstone, J., Sharp, J.D. and Compagnoni, R. (2011) Carbonate dissolution during subduction revealed by diamond-bearing rocks from the Alps. Natur. Geoscience, 4, 703—706 Google Scholar
Ganguly, J. and Saxena, S.X. (1984) Mixing properties of aluminosilicate garnets: constraints from natural and experimental data, and applications to geothermo- barometry. American Mineralogist, 69, 88—97.Google Scholar
García-Casco, A. and Torres-Roldán, R.L. (1996) Disequilibrium induced by fast decompression in St-Bt-Grt-Ky-Sil-And metapelites from the Betic Belt (Southern Spain). Journal of Petrology, 37, 1207—1239 CrossRefGoogle Scholar
Goffé, B., Michard, A., García-Duen˜as, V., González- Lodeiro, F., Monié , P., Campos, J., Galindo- Zaldívar, J., Jabaloy, A., Martínez-Martínez, J.M. and Simancas, F. (1989) First evidence of highpressure, low-temperature metamorphism in the Alpujarride nappes, Betic Cordillera (SE Spain). European Journal of Mineralogy, 1, 139—142 CrossRefGoogle Scholar
Green, T.H. and Hellman, P.L. (1982) Fe-Mg partitioning between coexisting garnet and phengite at high pressure, and comments on a garnet-phengite geothermometer. Lithos, 15, 253—266 CrossRefGoogle Scholar
Hodges, K.V. and Crowley, P.D. (1985) Error estimation and empirical geothermobarometry for pelitic systems. America. Mineralogist, 70, 702—704 Google Scholar
Hodges, K.V. and Spear, F.S. (1982) Geothermometry, geobarometry and the Al2SiO5 triple point at Mt. Moosilauke, New Hampshi r e . America. Mineralogist, 67, 1118—1134 Google Scholar
Hwang, S.L., Shen, P., Yui, T.F. and Chu, H.T. (2003) Metal-sulfur-COH-silicate fluid mediated diamond nucleation in Kokchetav ultrahigh-pressure gneiss. Europea. Journal of Mineralogy, 15, 503—511 CrossRefGoogle Scholar
Indares, A. and Martignole, J. (1985) Biotite-garnet geothermometry in the granulite facies: the influence of Ti and Al in biotite. America. Mineralogist, 70, 272—278 Google Scholar
Katayama, I., Zayachkovsky, A.A. and Maruyama, S. (2000) Progressive P-T records from zircon in Kokchetav UHP-HP rocks, northern Kazakhstan. Islan. Arc, 9, 417—427 Google Scholar
Kornprobst, J. (1974) Contribution á l’étude pétrographique et structurale de la zone interne du Rif. Notes et Mémoires du Service Géologique d. Maroc, 251, 1—256 Google Scholar
Kornprobst, J. (1985) Petrographical study of ‘‘acustic basement’’ and associated breccia at site 121 - Western Alboran basin: a comparison with the Betico-Rifean Basement. DSDP Initia. Report, 13, 759—761 Google Scholar
Kornprobst, J. and Vielzeuf, D. (1984) Transcurrent crustal thinning: a mechanism for the uplift of deep continental crust-upper mantle associations. Pp. 347-359 in: Kimberlites and Related Rocks (J. Kronprobst, editor). Developments in Petrology, 11B. Elsevier, Amsterdam..Google Scholar
Kotková, J., Óbrien, P.J. and Ziemann, M.A. (2011) Diamond and coesite discovered in Saxony-type granulite: solution to the Variscan garnet peridotite enigma. Geology, 39, 667—670 CrossRefGoogle Scholar
Koziol, A.M. (1989) Recalibration of the garnetplagioclase- Al2SiO5-quartz (GASP) geobarometer and applications to natural paragenesis. EOS, 70, 493.Google Scholar
Koziol, A.M. and Newton, R.C. (1988) Redetermination of the anorthite breakdown reaction and improvement of the plagioclase-garnet-Al2SiO5-quartz geobarometer. America. Mineralogist, 73, 216—223 Google Scholar
Lapke, C., Schmitt, R.T., Kenkmann, T. and Stö ffler, D. (2000) Raman microspectrometry of impact diamond from the Ries crater. Abstracts of the 63rd Annual Meteoritical Society Meeting, 5031.Google Scholar
Li, N., JiaQi, Z., Wei, G., Xiao, H. and ShanYi, D. (2009) Raman spectra of nitrogen-doped tetrahedral amorphous carbon from first principles. Chinese Scienc. Bulletin, 54, 4376—4380 Google Scholar
Li, L.A., Cheng, S.H., Li, H.D., Yu, Q., Liu, J.W. and Lv, X.Y. (2010) Effect of nitrogen on deposition and field emission properties of boron-doped micro- and nano-crystalline diamond films. Nano-micr. letters, 2, 154—159 Google Scholar
Liou, J.G., Zhang, R-Y., Katayama, I., Maruyama, S. and Ernst, W.G. (2002) Petrotectonic characterization of the Kokchetav massif and the Dabie-Sulu terrane. Ultrahigh-P metamorphism in the so-called P-T forbidden zone. Western Pacific Eart. Sciences, 2, 119—148 Google Scholar
Massonne, H.-J. (1995) Experimental and petrogenetic study of UHPM. Pp 33-95 in: Ultrahigh Pressure Metamorphism (R. Coleman and X. Wang, editors). Cambridge University Press, Cambridge.UK.Google Scholar
Massonne, H.-J. (1999) A new occurrence of microdiamonds in quartzofeldspathic rocks of the Saxonian Erzgebirge, Germany, and their metamorphic evolution. Pp. 533-539 in: Proceedings of the VIIth International Kimberlite Conference (J.J. Gurney, J.L. Gurney, M.D. Pascoe and S.H. Richardson, editors). Red Roof Design, Cape Town, South Africa.Google Scholar
Massonne, H.-J. (2003) .A comparison of the evolution of diamondiferous quartz-rich rocks from the Saxonian Erzgebirge and the Kokchetav Massif: are so-called diamondiferous gneisses magmatic rocks? Earth and Planetary Scienc. Letters, 216, 347—364 Google Scholar
Michard, A., Goffé, B., Chalouan, A. and Saddiqi, O. (1991) Les corrélations entre les chaıˆnes Bético- Rifaines et les Alpes et leurs conséquences. Bulletin de la Societé Géologique d. France, 162, 1151—1160 Google Scholar
Michard, A., Goffé , B., Bouybaouene, M.L. and Saddiqi, O. (1997) Late Hercynian-Mesozoic thinning in the Alboran domain: metamorphic data from the northern Rif, Morocco. Terr. Nova, 9, 171—174 Google Scholar
Montel, J.M., Kornprobst, J. and Vielzeuf, D. (2000) Preservation of old U-Th-Pb ages in shielded monazite: example from the Beni Bousera Hercynian kinzigites (Morocco). Journal of Metamorphi. Geology, 18, 335—342 Google Scholar
Mosenfelder, J.L., Schertl, H.P., Smyth, J.R. and Liou, J.G. (2005) Factors in the preservation of coesite: the importance of fluid infiltration. America. Mineralogist, 90, 779—789 CrossRefGoogle Scholar
Mposkos, E.D. and Kostopoulos, D.K. (2001) Diamond, former coesite and supersilicic garnet in metasedimentary rocks from the Greek Rhodope: a new ultrahigh-pressure metamorphic province established. Earth and Planetary Scienc. Letters, 192, 497—506 Google Scholar
Nasdala, L. and Massonne, H,-J, (2000) Microdiamonds from the Saxonian Erzgebirge, Germany. Europea. Journal of Mineralogy, 12, 495—498 CrossRefGoogle Scholar
Negro, F., Beyssac, O., Goffé, B., Saddiqi, O. and Bouybaouéne, L. (2006) Thermal structure of the Alboran Domain in the Rif (northern Morocco) and the Western Betics (southern Spain). Constraints from Raman spectroscopy of carbonaceous material. Journal of Metamorphi. Geology, 24, 309—327 Google Scholar
Newton, R.C. and Haselton, H.T. (1981) Thermodynamics of the garnet–plagioclase– Al2SiO5–quartz geobarometer. Pp 131-147 in: Thermodynamics of Minerals and Melts (R.C. Newton, A. Navraptsky and B.J. Wood, editors). Springer-Verlag, New York..CrossRefGoogle Scholar
Óbrien, P.J. and Rö tzler, J. (2003) High-pressure granulites: formation, recovery of peak conditions and implications for tectonics. Journal of Metamorphic Geology, 21, 3—20.CrossRefGoogle Scholar
Ogasawara, Y. (2005) Microdiamonds in ultrahighpressure metamorphic rocks. Elements, 1, 91—96.CrossRefGoogle Scholar
Pearson, D.G., Davies, G.R., Nixon, P.H. and Milledge, H.J. (1989) Graphitized diamonds from a peridotite massif in Morocco and implications for anomalous diamond occurrences. Nature, 338, 60—62.CrossRefGoogle Scholar
Pearson, D.G., Davies, G.R. and Nixon, P.H. (1993). .Geochemical constraints on the petrogenesis of diamond facies pyroxenites from the Beni Bousera peridotite massif, north Morocco. Journal of Petrology, 34, 125—172 CrossRefGoogle Scholar
Pearson, D.G. and Nowell, G.M. (2004) Re-Os and Lu- Hf isotope constraints on the origin and age of pyroxenites from the Beni Bousera peridotite Massif: implications for mixed peridotite-pyroxenite mantle sources. Journal of Petrology, 45, 439—455 CrossRefGoogle Scholar
Perchuk, L.L. (1991) Derivation of a thermodynamically consistent set of geothermometers and geobarometers for metamorphic and magmatic rocks. Pp 93-112 in: Progress in metamorphic and magmatic petrology (L.L. Perchuk, editor). Cambridge, University Press, Cambridge, UK.CrossRefGoogle Scholar
Pechnikov, V.A. and Kaminsky, F.V. (2008) Diamond potential of metamorphic rocks in the Kokchetav Massif, northern Kazakhstan. European Journal of Mineralogy, 20, 395—413 CrossRefGoogle Scholar
Pechnikov, V.A. and Kaminsky, F.V. (2011) Structural and microstructural regularities of the distribution of diamond in metamorphic rocks of the Kumdy-Kol and Barchi-Kol deposits, Kokchetav Massif, Northern Kazakhstan. The Canadia. Mineralogist, 49, 673—690 CrossRefGoogle Scholar
Platt, J.P., Whitehouse, M.J., Kelley, S.P., Carter, A. and Hollick, L. (2003) Simultaneous extensional exhumation across the Alboran Basin: implications for the causes of late orogenic extension. Geology, 31, 251—254 2.0.CO;2>CrossRefGoogle Scholar
Puga, E., Díaz De Federico, A. and Nieto, J.M. (2002) Tectonostratigraphic subdivision and petrological characterisation of the deepest complexes of the Betic zone: a review. Geodinamica Acta, 15, 23—43.CrossRefGoogle Scholar
Reisberg, L. and Zindler, A. (1986) Extreme isotopic variations in the upper mantle: evidence from Ronda. Earth and Planetary Science Letters, 81, 21—45.CrossRefGoogle Scholar
Reisberg, L., Zindler, A. and Jagouts, E. (1989) Further Sr and Nd isotopic results from peridotites of the Ronda ultramafic complex. Earth and Planetary Science Letters, 96, 161—180 CrossRefGoogle Scholar
Reuber, I., Michard, A., Chalouan, A., Juteau, T. and Jermoumi, B. (1982) Structure and emplacement of the Alpine-type peridotites from Beni Bousera, Rif, Morocco: a polyphase tectonic interpretation. Tectonophysics, 82, 231–251.CrossRefGoogle Scholar
Ruiz, Cruz M.D. and Sanz de Galdeano, C. (2008) Hightemperature ammonium white mica from the Betic Cordillera (Spain). America. Mineralogist, 93, 977—987 CrossRefGoogle Scholar
Ruiz, Cruz M.D. and Sanz de Galdeano, C. (2009) Suhailite: a new ammonium trioctahedral mica. America. Mineralogist, 94, 210—221 Google Scholar
Ruiz, Cruz M.D., Sanz de Galdeano, C. and Garrido, C. (2011) EBSD-based identification and quantification of diamond from the Rif gneisses (Spain and Morocco): economic implications. Economi. Geology, 106, 1241—1249 Google Scholar
Saddiqi, O., Reuber, I. and Michard, A. (1988) Sur la tectonique de denudation du manteau infracontinental dans les Beni Bousera, Rif septentrional, Maroc. Comptes Rendues de l’Academie de Sciences de Paris, 307, 657—662 Google Scholar
Sanz de Galdeano, C., Andreo, B., García-Tortosa, F.J. and López-Garrido A.C. (2001) The Triassic palaeogeographic transition between the Alpujárride and Maláguide complexes, Betic-Rif Internal Zone. Palaeo, 167, 157—173 CrossRefGoogle Scholar
Schmidt, S., Nagel, T.J. and Froitzheim, N. (2010) A new occurrence of microdiamond-bearing metamorphic rocks, SW Rhodopes, Greece. Europea. Journal of Mineralogy, 22, 189—198 CrossRefGoogle Scholar
Slodkevich, V.V. (1980) Graphite pseudomorphs after diamond. International Geolog. Reviews, 25, 497—514 Google Scholar
Sobolev, N.V. and Shatsky, V.S. (1990) Diamond inclusions in garnets from metamorphic rocks: an environment for diamond formation. Nature, 343, 742—745 CrossRefGoogle Scholar
Solin, S.A. and Ramdas, A.K. (1970) Raman spectrum of diamond. Physica. Review, 1, 1687—1698 Google Scholar
Spear, F.S. and Daniel, G. (2001) Diffusion control of garnet growth, Harpswell Neck, Maine, USA. Journal of Metamorphi. Geology, 19, 179—195 Google Scholar
Stöckhert, B., Duyster, J., Trepmann, C. and Massonne, H.J. (2001) Microdiamond daughter crystals precipitated from supercritical COH + silicate fluids included in garnet, Erzgebirge, Germany. Geology, 29, 391—394 2.0.CO;2>CrossRefGoogle Scholar
Tracy, R.J. (1982) Compositional Zoning and Inclusions in Metamorphic Minerals. Pp. 355-397 in: Characterization of Metamorphism through Mineral Equilibria (J.M. Ferry, editor). Reviews in Mineralogy, 10. Mineralogical Society of America, Washington DC.Google Scholar
Tubía, J.M. and Gil Ibarguchi, J.I. (1991) Eclogites of the Ojén nappe: A record of subduction in the Alpujárride complex (Betic Cordilleras, southern Spain). Journal of the Geological Society of London, 148, 801—804 CrossRefGoogle Scholar
Tubía, J.M., Cuevas, J., Navarro-Vilá, F., Alvarez, F. and Aldaya, F. (1992) Tectonic evolution of the Alpujarride Complex (Betic Cordillera, southern Spain). Journal of Structura. Geology, 14, 193—203 Google Scholar
Van den Bosch, J.W.H. (1974) Quelques principes généraux de l’interprétation gravimétrique ilustrés pas des examples empruntés á la carte gravimétrique du Maroc (structure du Rif et intrusions granitiques au Maroc central). Notes et Mémoires du Service Géologique d. Maroc, 35, 117—136 Google Scholar
Van Roermund, H.L.M., Carswell, D.A., Drury, M. and Heyboer, T.C. (2002) Microdiamonds in a megacrystic garnet websterite pod from Bardane on the island of Fjortoft, western Norway: evidence for diamond formation in mantle rocks during deep continental subduction. Geology, 30, 959—962 2.0.CO;2>CrossRefGoogle Scholar
Vrijmoed, J.C., Smith, D.C. and Van Roermund, H.L.M. (2008) Raman confirmation of microdiamond in the Svartberget Fe-Ti type garnet peridotite, Western Gneiss Region, Western Norway. Terr. Nova, 20, 95—301 Google Scholar
Whitney, D.L. and Evans, B.W. (2010) Abbreviations for names of rock-forming minerals. America. Mineralogist, 95, 185—187 CrossRefGoogle Scholar
Yang, J., Xu, Z.Z., Dobrzhinetskaya, L.F., Green, H.W. II, Pei, X., Shi, R., Wu, C., Wooden, J.L., Zhang, J., Wan, Y. and Li, H. (2003) Discovery of metamorphic diamonds in central China: an indication of a >4000-km-long zone of deep subduction resulting from multiple continental collisions. Terr. Nova, 15, 370—379 Google Scholar
Zeck, H.P. (1997) Mantle peridotites outlining the Gibraltar Arc - centrifugal extensional allochthons derived from the earlier Alpine, westward subducted nappe pile. Tectonophysics, 281, 195—207 CrossRefGoogle Scholar
Zeck, H.P. and Whitehouse, M.J. (1999) Hercynian, Pan- African, Proterozoic and Archean ion-microprobe zircon ages for a Betic-Rif core complex, Alpine belt,W Mediterranean - consequences for its P-T-t path. Contributions to Mineralogy an. Petrology, 134, 134—149 Google Scholar