Saeedi, Farnosh; Habib, Daniel (2000): Dinoflagellate and organic detritus study of the Maastrichtian-Danian interval at the Bass River site, ODP 174X. Geological Society of America (GSA), Boulder, CO, United States, In: Anonymous, Geological Society of America, 2000 annual meeting, 32 (7), 91, georefid:2002-039228
Abstract:
The Bass River site in New Jersey, drilled by the New Jersey Geological Survey and Rutgers University as part of Ocean Drilling Program Leg 174X, is well-known for the discrete spherule layer that exists immediately above the Cretaceous-Tertiary boundary (KTb). Recently completed study of dinoflagellate cysts in the Maastrichtian interval from 1295.5 ft. up to 1260.25 ft. revealed an age ranging from middle Maastrichtian through latest Maastrichtian. First appearances of the dinoflagellates Palynodinium grallator and Cyclapophysis monmouthensis date the interval from 1266.4 feet as latest Maastrichtian. First appearance of Senoniasphaera inornata, followed immediately by Damassadinium californicum, identify the earliest Danian across a comformable KTb at 1260.25 ft. The total number of species, and their ratio to total specimens, are used together with pelagic (well-preserved abundant amorphous debris) and terrigenous (land plant detritus and inertinite) organic matter to distinguish episodes of relative sea level change.
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West: -75.3500 East: -73.5300 North: 41.2100 South: 38.3000
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