Calcium isotope evidence for environmental variability before and across the Cretaceous-Paleogene mass extinction
Abstract
Carbon dioxide release during Deccan Traps volcanism and the Chicxulub impact likely contributed to the Cretaceous-Paleogene (K-Pg) mass extinction; however, the intensity and duration of CO2 input differed between the two events. Large and rapid addition of CO2 to seawater causes transient decreases in pH, [CO32–], and carbonate mineral saturation states. Compensating mechanisms, such as dissolution of seafloor sediment, reduced...
Paper Details
Title
Calcium isotope evidence for environmental variability before and across the Cretaceous-Paleogene mass extinction
Published Date
Oct 28, 2019
Journal
Volume
48
Issue
1
Pages
34 - 38
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