Deccan Traps Volcanism Implicated in the Extinction of Non‐Avian Dinosaurs in Southeastern China
نویسندگان
چکیده
Abstract The extinction of non‐avian dinosaurs and its cause(s) have been a matter debate for several decades. Here we measured Hg isotopic composition, heavy metals, magnetic parameter in terrestrial basin southeastern China. exhibited anomalies from 66.4 to 65.6 Ma, with near‐zero positive Δ 199 values, which reflected the eruption Deccan Traps (DT) magma. In addition, coincided gradual dinosaurs, thereby consistent hypothesis that DT played key role mass extinction. Analysis paleoclimatic records showed both Late Maastrichtian warming event (LMWE) Dan‐C2 occurred at maxima 405‐kyr long eccentricity cycle, onset dinosaur decline was earlier than LMWE, suggesting LMWE an ancillary mechanism how caused requires further investigation.
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ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 2022
ISSN: ['1944-8007', '0094-8276']
DOI: https://doi.org/10.1029/2022gl100342