0000000000374297

AUTHOR

Randazzo V.[1]

showing 1 related works from this author

The end-Triassic mass extinction: A new correlation between extinction events and δ13C fluctuations from a Triassic-Jurassic peritidal succession in …

2018

Abstract A new δ13Ccarb curve was obtained from an expanded peritidal succession in western Sicily and was used to investigate the relationships between isotopic signatures and biological events on carbonate platforms across the Triassic-Jurassic boundary (TJB). The resulting curve shows two main negative carbon isotopic excursions (CIEs) that fit well with the “Initial” and “Main” CIEs that are recognized worldwide and linked to the End-Triassic Extinction (ETE). In the studied section, the first negative CIE marks the disappearance of the large megalodontids, which were replaced by small and thin-shelled specimens, while the “Main” CIE corresponds to the last occurrence (LO) of the megalo…

010506 paleontologySettore GEO/02 - Geologia Stratigrafica E SedimentologicaCarbonate platformStratigraphyAcidification; Carbon isotopes; Mass extinction; Sicily; Triassic-Jurassic boundary; Western Tethys; Geology; Stratigraphy010502 geochemistry & geophysics01 natural sciencesMass extinctionCarbon cycleAcidificationPaleontologychemistry.chemical_compoundSicily0105 earth and related environmental sciencesExtinction eventExtinctionCarbon isotopesGeologyTriassic-Jurassic boundarychemistryBenthic zoneIsotopes of carbonTriassic-Jurassic boundary Mass extinction Carbon isotopes Acidification Western Tethys SicilyCarbonateGeologyMarine transgressionWestern Tethys
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