Carbonate burial regimes, the Meso-Cenozoic climate, and nannoplankton expansion.

ABSTRACT: The long-term climate of Earth alternates between warmer and cooler periods, for which atmospheric CO₂ content is often viewed as a primary control. Although silicate weathering feedback governs this long-term equilibrium, the partitioning of carbonate burial between neritic and pelagic environments can influence how rapidly the carbon cycle adjusts to perturbations. The impact of neritic carbonates accumulation on oceanic calcium and alkalinity fluxes, nannoplankton productivity, and carbon reservoirs is overlooked. To investigate this role, we combine plate-tectonic reconstructions with climatic and physiographic simulations and apply a macroecological model to estimate Meso-Cenozoic neritic warm-water carbonate habitats and productivity. We find that only during the Early Cre

SUBMITTER: Salles T 

PROVIDER: S-EPMC12704742 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature