See more from this Division: Topical Sessions
See more from this Session: Mixed Siliciclastic-Carbonate Systems: Mixing through Time and Space
Abstract:
Aragonite accumulation varies downcore in phase with the oxygen isotope values, with the highest aragonite MARs typically occur during the late deglaciation and peak interglacials and the lowest aragonite MARs occurring during late interglacial and glacials. Consistent with well-established highstand shedding depositional concepts, neritic carbonate fluxes to the slopes are largely regulated by sea level - switch on when sea level floods the neritic carbonate regions and switch off when sea level falls and neritic carbonate regions are exposed. Elevated MARs of HMC, primarily produced from incipient marine cementation, are typically associated with partially lithified intraclasts formed by intensified boundary currents during late glacials.
The highest siliciclastic MARs are typically recorded during late interglacial and early glacials in addition to some of the glacial to interglacial transitions. The observed siliciclastic accumulations are controlled primarily by eustatic sea level, highest during early sea level regression, with additional influences from local and regional variations in physiography, climate, and/or ocean currents.
See more from this Division: Topical Sessions
See more from this Session: Mixed Siliciclastic-Carbonate Systems: Mixing through Time and Space