Thermogenic carbon release from the Central Atlantic magmatic province caused major end-Triassic carbon cycle perturbations.

ABSTRACT: The Central Atlantic magmatic province (CAMP), the end-Triassic mass extinction (ETE), and associated major carbon cycle perturbations occurred synchronously around the Triassic-Jurassic (T-J) boundary (201 Ma). Negative carbon isotope excursions (CIEs) recorded in marine and terrestrial sediments attest to the input of isotopically light carbon, although the carbon sources remain debated. Here, we explore the effects of mantle-derived and thermogenic carbon released from the emplacement of CAMP using the long-term ocean-atmosphere-sediment carbon cycle reservoir (LOSCAR) model. We have tested a detailed emission scenario grounded by numerous complementary boundary conditions, aiming to model the full extent of the carbon cycle perturbations around the T-J boundary. These include three neg

SUBMITTER: Heimdal TH 

PROVIDER: S-EPMC7275695 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature