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Chronometric calibration of a comparative time scale for the mesozoic and paleozoic

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Zusammenfassung

Alter und Fehlergrenzen für mesozoische und paläozoische Stufengrenzen werden mittels einer lokalen empirischen Schätzmethode neu berechnet. Daraus ergeben sich Schätzungen für die Alter und Fehler der Epochengrenzen, die aus verschiedenen Gründen nicht mit denen derältesten Stufe einer Epoche zusammenfallen.

Die Auswertung der Chronogramme führt zu einer vergleichenden Zeitskala, die im wesentlichen einen Kompromi\ zwischen den gegenwärtig gängigen Zeitskalen darstellt. Bemerkenswert ist, da\ die Zeitskala ein hohes Ma\ an Zyklizität aufweist, wobei sich Perioden von 74 (73±1) ma ergeben.

Abstract

The relationship between radiometric and biostratigraphic ages is analyzed by local empirical methods and illustrated in chronograms for the mesozoic and paleozoic stages. The chronograms allow estimates for stage boundaries and their errors. Consequently, the ages for epoch boundaries and their errors are discussed which, for several reasons, may not be identical with the age and error of the oldest stage of an epoch.

The analysis results in a comparative time scale which could be a compromise between the time scales currently under discussion. A specific feature of the derived time scale is its rather strong cyclicity with periods around 74 (73±1) ma.

Résumé

Les relations entre les âges radiométriques et les âges biostratigraphiques sont analysées par des méthodes locales et empiriques. Elles sont présentées dans des chronogrammes se référant aux étages du MésozoÏque et du PaléozoÏque. Ces chronogrammes permettent d'estimer les limites d'étages et les erreurs de cette estimation. Les âges des limites de systèmes et leurs erreurs sont discutés en conséquence. Pour diverses raisons ils ne sont pas identiques à ceux de l'étage le plus ancien d'un système.

L'analyse des chronogrammes aboutit à une échelle de temps comparative qui représente un compromis entre les échelles de temps couramment discutées. Une propriété remarquable de cette échelle est de faire apparaÎtre une cyclicité dont la période est de 74 (73±1) Ma.

кРАткОЕ сОДЕРжНАИЕ

с пОМОЩьУ лОкАльНОгО ЁМпИРИЧЕскОгО МЕтОД А ОцЕНкИ пЕРЕсЧИтАлИ Н А-НОВО ВОжРАст И гРАНИ цы ОшИБкИ Дль РУБЕжЕИ МЕ жОжОИскИх И пАлЕОжОИ скИх ьРУсОВ. тАкИМ ОБРАжОМ ВыьсНИлИ, ЧтО пОлУЧЕН НыЕ ДАННыЕ НЕ ОкАжАлИсь И ДЕНтИЧНыМИ с тАкОВыМ И ДРЕВНЕИшЕгО ьРУсА ЁпОхИ.

АНАлИж ДАННых РАжРЕш АЕт сОжДАть ОтНОсИтЕ льНУУ шкАлУ ВРЕМЕНИ, ьВльУЩ УУсь НЕкИМ кОМпРОМИс сОМ пО ОтНОшЕНИУ к ИМЕУЩИ Мсь НА сЕгОДНь шкАлАМ. хАРАктЕРНОИ ЧЕРтОИ ь ВльЕтсь тО, ЧтО НОВАь ш кАлА ВРЕМЕНИ пРОьВльЕт цИ клИЧНОсть с пЕРИОДОМ В 74 (73 ± 1) МИллИОНОВ лЕт.

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References

  • Armstrong, R. L. (1982): Late Triassic — Early Jurassic time-scale calibration in British Columbia Canada. - InOdin, G. S., ed., Numerical dating in stratigraphy. New York (John Wiley & Sons), 509–513.

    Google Scholar 

  • Bayer, U. (1985): Pattern Recognition Problems in Geology and Paleontology. - Berlin (Springer-Verlag), Lect. Notes in Earth Sci., 2., 229 pp.

    Google Scholar 

  • — &G. R. McGhee (1985): Evolution in Marginal Epicontinental Basins: The Role of Phylogenetic and Ecological Factors. - In:Bayer, U. &A. Seilacher, ed. 1985. Sedimentary and Evolutionary Cycles. Berlin (Springer-Verlag), Lect. Notes in Earth Sci.,1, 164–220.

    Google Scholar 

  • — (1986): Cyclic Patterns in the Paleozoic and Mesozoic: Implications for Time Scale Calibrations.- Paleoceanography,1, 383–402.

    Google Scholar 

  • Cohee, G., M. Glaessner, H. Hedberg (eds. 1978): Contributions to the geological time scale.- Tulsa, Oklahoma, Am. Assoc. Petrol. Geol.

    Google Scholar 

  • Cope, J. C. W. et al. (1980): A correlation of Jurassic rocks in the British Isles. - Geol. Soc. Lond. Spec. Pap. no. 14/15.

  • Cox, A. V. &G. B. Dalrymple (1967): Statistical analysis of geomagnetic reversal data and the precision of potassium-argon dating. - J. Geophys. Res.,72, 2603–2614.

    Google Scholar 

  • Fisz, M. (1976): Wahrscheinlichkeitsrechnung und mathematische Statistik. - Berlin (VEB Verlag), 777 pp.

    Google Scholar 

  • Hallam, A. (1984): Relations between Biostratigraphy, Magnetostratigraphy and Event Stratigraphy in the Jurassic and Cretaceous. - Proc. 27th Intern. Geol. Congress,1, 189–212.

    Google Scholar 

  • Harland, W. B. et al. (1982): A geological time scale. - Cambridge (Cambridge Univ. Press), 128 pp.

    Google Scholar 

  • Hedberg, H. D. (ed. 1976): International Stratigraphic Guide: a guide to stratigraphic classification, terminology, and procedure. - New York (Wiley).

    Google Scholar 

  • Johnson, J. G. (1979): Intent and reality in biostratigraphic zonation. - J. Paleont.53, 931–942.

    Google Scholar 

  • — (1981): Chronozones and other misapplications of chronostratigraphic concept. - Lethaia,14, 285–286.

    Google Scholar 

  • Kennedy, W. J. &G. S. Odin (1982): The Jurassic and Cretaceous time scale in 1981. - In:Odin, G. S. (ed.), Numerical dating in stratigraphy. Chichester (Wiley), 557–592.

    Google Scholar 

  • Kent, D. V. &F. M. Gradstein (1985): A Cretaceous and Jurassic geochronology. - Geol. Soc. Am. Bull.,96, 1419–1427.

    Google Scholar 

  • Odin, G. S. (ed. 1982): Numerical dating in stratigraphy. - Chichester (Wiley), Vol. 1+2.

    Google Scholar 

  • Palmer, A. R. (1983): The Decade of North American Geology 1983 geologic time scale. - Geology,11, 503–504.

    Google Scholar 

  • Raup, D. M. &J. J. Sepkoski (1984): Periodicity of extinctions in the geologic past. - Proc. Natl. Acad. Sci. USA,81, 801–805.

    PubMed  Google Scholar 

  • Rutsch, M. (1974): Wahrscheinlichkeit I. - Mannheim (B. I. Verlag), 344 pp.

    Google Scholar 

  • Snelling, N. J. (ed. in press): Geochronology and the geological record. - Geol. Soc. Lond.

  • Stange, K. (1970): Angewandte Statistik I. -Berlin (Springer), 592pp.

    Google Scholar 

  • Van Hinte, J. E. (1976): A Jurassic time scale. - Bull. Am. Ass. Petrol. Geol.60, 489–497.

    Google Scholar 

  • Vail, P. R. et al. (1977): Scismic stratigraphy and global changes of sea level. - In: Payton, C. E. (ed.), Stratigraphic interpretation of seismic data. Mem. Am. Ass. Petrol. Geol.,26, 49–212.

  • Westermann, G. E. G. (1984): Gauging the Duration of Stages: A New Approach for the Jurassic. - Episodes,7, 26–28.

    Google Scholar 

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Bayer, U. Chronometric calibration of a comparative time scale for the mesozoic and paleozoic. Geol Rundsch 76, 485–503 (1987). https://doi.org/10.1007/BF01821088

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