Extreme greenhouse warming in the latest Permian played a key role in the largest animal
extinction event ever recorded in Earth history. The extinction was likely triggered by …

Recent attempts to establish the eruptive history of the Deccan Traps large igneous province
have used both U-Pb (Schoene et al., 2019) and 40 Ar/39 Ar (Sprain et al., 2019) …

Ocean acidification causes biocalcification stress. The calcium isotope composition of
carbonate producers can archive such stress because calcium isotope fractionation is …

Large igneous province (LIP) eruptions are hypothesized to trigger biocalcification crises.
The Aptian nannoconid crisis, which correlates with emplacement of the Ontong Java …

Several studies have exploited the stable calcium (Ca) and strontium (Sr) isotope
compositions of marine carbonate rocks to investigate ancient carbon cycle dynamics …

Abstract The Mesozoic-Cenozoic transition is a period of biogeochemical cycle
perturbations. The strongest of them is the Cretaceous-Paleogene boundary (K-Pg) crisis …

Calcium isotope meaurements apply to problems spanning the 'cosmos to
benthos.'Fractionation, source mixing, radioactive decay, and nucleosynthetic processes …

Abstract The Frasnian–Famennian (F–F; Late Devonian) mass extinction (ca.∼ 375 Ma)
was one of the largest biocrises of the Phanerozoic, yet the mechanism that drove …

Ocean acidification (OA) during the Paleocene-Eocene thermal maximum (PETM) likely
caused a biocalcification crisis. The calcium isotope composition (δ 44/40 Ca) of primary …

Abstract Calcium isotopes (δ44/40Ca) are particularly useful in palaeo‐environmental
studies due to the key role of carbonate minerals in continental weathering and their …