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The Geological Time Scale

  • Felix M. Gradstein (a1)

Abstract

This lecture reviews Geologic Time Scale 2004 (Gradstein, Ogg et al., 2004; Cambridge University Press), constructed and detailed by 40 geoscience specialists, and indicates how it will be further refined. Since Geologic Time Scale 1989 by Harland et al., many developments have taken place: (1) Stratigraphic standardization through the work of the International Commission on Stratigraphy (ICS) has greatly refined the international chronostratigraphic scale. In some cases, traditional European-based stages have been replaced with new subdivisions that allow global correlation. (2) New or enhanced methods of extracting high-precision age assignments with realistic uncertainties from the rock record. These have led to improved age assignments of key geologic stage boundaries and other global correlation horizons. (3) Orbital tuning has greatly refined the Neogene, and improved parts of Paleogene and Mesozoic. (4) Statistical techniques of compiling integrated global stratigraphic scales within geologic periods.

Anticipated advances to the Geologic Time Scale during the next 8 years include: a geologically realistic Precambrian scale, formal definition of all Phanerozoic stage boundaries, orbital tuning of polarity chrons and biostratigraphic events for entire Cenozoic and Cretaceous, a detailed database of high-resolution radiometric ages that includes “best practice” procedures, full error analysis, monitor ages and conversions, resolving age dating controversies (e.g., zircon statistics and possible reworking) across Devonian/Carboniferous, Permian/Triassic, and Anisian/Ladinian boundaries, improved and standardized dating of several ‘neglected’ intervals (e.g., Upper Jurassic – Lower Cretaceous, and Carboniferous through Triassic, and detailed integrated stratigraphy for Upper Paleozoic through Lower Mesozoic.

The geochronological science community and ICS are focusing on these issues. A modified version of the time scale to accompany the standardization (boundary definitions and stratotypes) of all stages is planned for 2008 (to be presented at the 33th International Geologic Congress in Oslo), with a totally revised version of GTS available in 2012.

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References

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Agterberg, F.P., 1994, Estimation of the Mesozoic geological time scale. Mathematical Geology 26: 857–76.
Bleeker, W., 2004, Toward a “natural” Precambrian time scale. In Gradstein, F., Ogg, J., and Smith, A., eds., A Geologic Time Scale 2004. Cambridge University Press, p. 141147.
Chlupácn, I., 1993, Geology of the Barrandian. Senckenburg-Buch 69: 163.
Cooper, R.A. and Sadler, P.M., 2004, The Ordovician Period. In Gradstein, F., Ogg, J., and Smith, A., eds., A Geologic Time Scale 2004. Cambridge University Press, p. 165188.
Davydov, V., Wardlaw, B.R., and Gradstein, F.M., 2004, The Carboniferous Period. In Gradstein, F., Ogg, J., and Smith, A., eds., A Geologic Time Scale 2004. Cambridge University Press, p. 222249.
Gibbard, P. and Van Kolfschoten, T., 2004, The Pleistocene and Holocene Epochs. In Gradstein, F., Ogg, J., and Smith, A., eds., A Geologic Time Scale 2004. Cambridge University Press, p. 441453.
Gradstein, F.M. and Ogg, J., 1996, A Phanerozoic time scale. Episodes 19(1–2), p. 35.
Gradstein, F.M., Agterberg, F.P., Ogg, J.G., Hardenbol, J., Van Veen, P., Thierry, T., and Huang, A., 1995, A Triassic, Jurassic, and Cretaceous time scale. In Berggre, W.A., Kent, D.V., Aubry, M.-P., and Hardenbol, J., eds., Geochronology, Time Scales and Global Stratigraphic Correlations: A Unified Temporal Framework for a Historical Geology, Society of Economic Paleontologists and Mineralogists Special Publication, Vol. 54: Tulsa, OK: SEPM, pp. 95128.
Gradstein, F.M., Ogg, J. G., Smith, A. G., Agterberg, F. P., Bleeker, W., Cooper, R. A., Davydov, V., Gibbard, P., Hinnov, L., House, M.R. (†), Lourens, L., Luterbacher, H-P., McArthur, J., Melchin, M. J., Robb, L.J., Shergold, J., Villeneuve, M., Wardlaw, B.R., Ali, J., Brinkhuis, H., Hilgen, F. J., Hooker, J., Howarth, R.J., Knoll, A.H., Laskar, J., Monechi, S., Powell, J., Plumb, K.A., Raffi, I., Röhl, U., Sadler, P., Sanfilippo, A., Schmitz, B., Shackleton, N.J., Shields, G.A., Strauss, H., Van Dam, J., Veizer, J., Van Kolfschoten, Th., and Wilson, D., 2004. A Geologic Time Scale 2004. Cambridge University Press, 589 p.
Graciansky, P., Hardenbol, J., Jaquin, T.,. and Vail, P.R., 1998. Mesozoic and Cenozoic Sequence Stratigraphy of European Basins. SEPM Special Publ. # 60, 786 p.
Haq, B.U. and Al-Qahtani, Abdul Motaleb. Phanerozoic cycles of sea-level change on the Arabian Platform. Geoarabia Vol. 10, no. 2, 2005: 127160, 2 charts
Hardenbol, J., Thierry, J., Farley, M.B., Jaquin, Th., Graciansky, P.C. and Vail, P.R., 1998. Mesozoic and Cenozoic Sequence Chronostratigraphic Framework of European Basins. SEPM Special Publ. # 60, 8 charts.
Harland, W.B., Cox, A.V., Llewellyn, P.G., Pickton, C.A.G., Smith, A.G., Walters, R., and Fancett, K.E., 1982, A Geologic Time Scale. Cambridge: Cambridge University Press.
Harland, W.B., Armstrong, R.L., Cox, A.V., Craig, L.E., Smith, A.G., and Smith, D.G., 1990, A Geologic Time Scale 1989. Cambridge: Cambridge University Press.
House, M.R. and Gradstein, F.M., 2004, The Devonian Period. In Gradstein, F., Ogg, J., and Smith, A., eds., A Geologic Time Scale 2004. Cambridge University Press, p. 202222.
Jaffey, A.H., Flynn, K.F., Glendenin, L.E., Bentley, W.C., and Essling, A.M., 1971, Precision measurement of half-lives and specific activities of 235U and 238U. Physical Review C: Nuclear Physics 4: 1889–906.
Kwon, J., Min, K., Bickel, P.J., and Bickel, R.R.P., 2002, Statistical methods for jointly estimating the decay constant of 40K and the age of a dating standard. Mathematical Geology 34(4): 457–74.
Luterbacher, H.P., Ali, J.R., Brinkhuis, H., Gradstein, F.M., Hooker, J.J., Monechi, S., Ogg, J.G., Powell, J., Röhl, U., Sanfilippo, A., and Schmitz, B., 2004, The Paleogene Period. In Gradstein, F., Ogg, J., and Smith, A., eds., A Geologic Time Scale 2004. Cambridge University Press, p. 384409.
Lourens, L., Hilgen, F., Shackleton, N.J., Laskar, J., and Wilson, D., 2004, The Neogene Period. In Gradstein, F., Ogg, J., and Smith, A., eds., A Geologic Time Scale 2004. Cambridge University Press, p. 409441.
Martinsson, A., 1977, The Silurian-Devonian boundary: final report of the Committee of the Siluro-Devonian Boundary within IUGS Commission on Stratigraphy and a state of the art report for Project Ecostratigraphy. Internationsl Union of Geological Sciences, Series A5. Stuttgart: Schweizerbartsche Verlagsbuchhandlung.
McKerrow, W.S., Lambert, R.S.J., and Cocks, L.R.M., 1985, The Ordovician, Silurian and Devonian Periods. In Snelling, N.J., ed., The Chronology of the Geological Record, Geological Society of London Memoir 10. London: Geological Society, pp. 7380.
Melchin, M.J., Cooper, R.A., and Sadler, P.M., 2004, The Silurian Period. In Gradstein, F., Ogg, J., and Smith, A., eds., A Geologic Time Scale 2004. Cambridge University Press, p. 188202.
Ogg, J., 2004, The Triassic Period. In Gradstein, F., Ogg, J., and Smith, A., eds., A Geologic Time Scale 2004. Cambridge University Press, p. 271307.
Ogg, J., 2004, The Jurassic Period. In Gradstein, F., Ogg, J., and Smith, A., eds., A Geologic Time Scale 2004. Cambridge University Press, p. 307344.
Ogg, J., Agterberg, F.P., and Gradstein, F.M., 2004, The Creataceous Period. In Gradstein, F., Ogg, J., and Smith, A., eds., A Geologic Time Scale 2004. Cambridge University Press, p. 344384.
Remane, J., 2000, International stratigraphic chart, with explanatory note. Sponsored by ICS, IUGS and UNESCO. 31st International Geological Congress, Rio de Janeiro 2000, p. 16.
Remane, J., Bassett, M.G., Cowie, J.W., Gohrbandt, K.H., Lane, H.R., Michelsen, O., and Wang, N., 1996, Revised guidelines for the establishing of global chronostratigraphic standards by the International Commission on Stratigraphy (ICS). Episodes 19(3): 7781.
Renne, P.R., Deino, A.L., Walter, R.C., Turrin, B.D., Swisher, C.C. Iii, Becker, T.A., Curtis, G.H., Sharp, W.D., and Jaouni, A.R., 1994, Intercalibration of astronomical and radioisotopic time. Geology 22(9): 783–6.
Roberts, J., Claoué-Long, J.C., and Jones, P.J., 1995, Australian Early Carboniferous time. In Berggren, W.A., Kent, D.V., Aubry, M.-P., and Hardenbol, J., eds., Geochronology, Time Scales and Global Stratigraphic Correlations: A Unified Temporal Framework for a Historical Geology, Society of Economic Paleontologists and Mineralogists Special Publication, Vol. 54: Tulsa, OK: SEPM, pp. 2340.
Salvador, A.E., 1994, International Stratigraphic Guide:-A Guide to Stratigraphic Classification, Terminology and Procedure. Boulder, CO: Geological Society of America.
Sharland, P., Casey, D.M., Davies, R.B. Simmons, M.B., and Sutcliffe, O.E., 2004 Arabian Plate Sequence Stratigraphy. Geoarabia Vol. 9, no. 1,: 199214, 2 charts.
Shergold, J.H. and Cooper, R.A., 2004, The Cambrian Period. In Gradstein, F., Ogg, J., and Smith, A., eds., A Geologic Time Scale 2004. Cambridge University Press, p. 147165.
Steiger, R.H. and Jäger, E., 1977, Subcommission on Geochronology: convention on the use of decay constants in geo- and cosmo-chronology. Earth and Plantetary Science Letters 36: 359–62.
Tucker, R.D. and McKerrow, W.S., 1995, Early Paleozoic chronology: a review in light of new U-Pb zircon ages from Newfoundland and Britain. Canadian Journal of Earth Sciences 32(4): 368–79.
Wardlaw, B.R., Davydov, V., and Gradstein, F.M., 2004, The Permian Period. In Gradstein, F., Ogg, J., and Smith, A., eds., A Geologic Time Scale 2004. Cambridge University Press, p. 249271.
Williams, E.A., Friend, P.F., and Williams, P.J., 2000, A review of Devonian time scales: data-bases, construction and new data. In Friend, P.F. and Williams, B.P.J., eds., New Perspectives on the Old Red Sandstone, Geological Society of London Special Publication, Vol. 180, London: Geological Society, pp. 121.
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The Paleontological Society Papers
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