(Figure 4) Stratigraphic distribution of planktonic foraminifera in DSDP Hole 93-604, supplement to: Moullade, Michel (1987): Distribution of Neogene and Quaternary planktonic foraminifers from the upper continental rise of the New Jersey Margin (western North Atlantic), Deep Sea Drilling Project Leg 93, Site 604: Sedimentary and paleoceanographic implications of the biostratigraphy. In: van Hinte, JE; Wise, SW Jr; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 93, 493-509

During Deep Sea Drilling Project Leg 93, upper Miocene through Quaternary sediments were continuously cored in Hole 604, located on the upper continental rise of the New Jersey transect (western North Atlantic). A detailed biostratigraphic study of these strata has been made using the vertical distribution of planktonic foraminifers. The Quaternary climatic zonation of Ericson and Wollin (1968) has been tentatively delineated and all the Pliocene zones and subzones (sensu Berggren, 1977) have been recognized. The rate of sedimentation was slow during most of the Pliocene but underwent a significant acceleration in the early Pleistocene. Quantitative variations in the distribution of planktonic foraminifers appear to be influenced by various factors, such as hydrodynamic winnowing resulting from the action of bottom currents and surficial thermal conditions caused by climatic changes. Both dissolution intervals and brief increases in the coarser detrital input seem, most of the time, to be correlated with indications of climatic cooling and may correspond to glacial events or cycles. This chapter delineates a precursor stage in the inception of Northern Hemisphere glaciation at 3 Ma and wide-scale Quaternary glacial-interglacial cycles.Data from a detailed study of Hole 604 are briefly compared with the main sedimentary and microfaunal features of contemporaneous series previously drilled along the east American margin in the northwestern Atlantic. One of the striking observations appears to be the intense redistribution of sediments that affected this region in Neogene-Quaternary times.

Species abundance: A = abundant, C = common, F = few, R = rare, VR = very rare, - = absent.

Identifier
DOI https://doi.org/10.1594/PANGAEA.250663
PID http://hdl.handle.net/10013/epic.32352.d001
Related Identifier https://doi.org/10.2973/dsdp.proc.93.108.1987
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.250663
Provenance
Creator Moullade, Michel
Publisher PANGAEA - Data Publisher for Earth & Environmental Science
Publication Year 1987
Rights Creative Commons Attribution 3.0 Unported
OpenAccess true
Representation
Language English
Resource Type Supplementary Dataset
Format text/tab-separated-values
Size 3234 data points
Discipline Earth System Research
Spatial Coverage (-72.549 LON, 38.713 LAT); North Atlantic/CONT RISE