Direct Calibration of the Stratigraphic Response to Glacioeustatic Change using Oxygen Isotopic Data (Oligocene Sequences, Onshore New Jersey)

Columbia University, New York NY

Investigators

Abstract

Funds are being provided for the PIs to undertake a high-resolution study of the Oligocene shallow-water drill sites to determine linkages between oxygen-isotopic record and the sea-level variations. Both faunal and stable-isotopic studies of the ODP cores and onshore sites on the New Jersey margin are planned. The PIs will use the litho-and biofacies data to determine paleowater depth at Milankovitch scale resolution and will attempt new estimates of the magnitude of sea-level changes. Onshore Oligocene daa will be used to reconstruct a high-resolution oxygen-isotopic record. Detailed chronostratigraphy will provide a sense of leads and lags between changes in sea level and the sediment response.