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Integrated Upper Carnian to Lower Norian biochronology and implications for the Upper Triassic magnetic polarity time scale |
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| Authors: | Leopold Krystyn Yves GalletJean Besse Jean Marcoux |
| Affiliation: | a Institut für Paläontologie, Althanstrasse 14, A-1090 Vienna, Austria b Laboratoire de Paléomagnétisme, UMR 7577, Institut de Physique du Globe de Paris, France, 4 Place Jussieu, 75252 Paris Cedex 05, France c Département des Sciences Physiques de la Terre, Université Paris VII and Institut de Physique du Globe de Paris, 4 Place Jussieu, 75005 Paris, France |
| Abstract: | We summarize the ammonoid, conodont and halobiid biochronology of the Upper Carnian to Lower Norian, based on a discussion of data in the Alps, Sicily, Balkans, Turkey, Himalayas and Timor. With this integrated biostratigraphic scale, the Pizzo Mondello section (Sicily) can be recalibrated and the Carnian-Norian boundary more precisely located there. As a result, the magnetostratigraphy of this section is now in good agreement with previous results from Turkey, although the latter series are more condensed. Cross-correlation of available magnetostratigraphic data from marine Tethyan sections allow us to construct a composite Upper Carnian to Upper Norian geomagnetic polarity time scale (GPTS). This GPTS leads us to question previously proposed magnetobiostratigraphic and chronostratigraphic correlations within the Upper Triassic Newark non-marine sedimentary sequence. |
| Keywords: | magnetostratigraphy biochronology Upper Triassic time scales |
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