2 documents found, page 1 of 1
Rapid light carbon releases and increased aridity linked to Karoo-Ferrar magmat...
Font, Eric; Duarte, Luís Vítor; Dekkers, Mark J.; Remazeilles, Celine; Egli, Ramon; Spangenberg, Jorge E.; Fantasia, Alicia; Ribeiro, Joana; Gomes, ElsaLarge-scale release of isotopically light carbon is responsible for the carbon isotope excursion (CIE) of the Toarcian Oceanic Anoxic Event during the Lower Jurassic. Proposed sources include methane hydrate dissociation, volcanogenic outgassing of carbon dioxide and/or thermogenic methane release from the Karoo-Ferrar magmatic province (southern Africa). Distinct small-scale shifts superimposed on the long-ter...
Tracing acidification induced by Deccan Phase 2 volcanism
Font, Eric; Ponte, Jorge; Adatte, Thierry; Fantasia, Alicia; Florindo, Fabio; Abrajevitch, Alexandra; Mirao, JoseThe Deccan Volcanic Province (DVP) was built up by three major phases of eruptions; the most voluminous of which, the Deccan Phase 2, encompassed the Cretaceous–Palaeogene (KT) boundary. Deccan eruptions have been implicated as a contributor to the end-Cretaceous mass extinction, however, mechanism by which volcanic activity affected biota remains poorly understood. We applied a combination of rock magnetic tec...