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The U.S. Geological Survey recovered 9 piston cores from theNorthwind Ridge in the Canada Basin of the Arctic Ocean from acruise of the USCGC Polar Star during 1988. Preliminaryanalysis of the cores suggests sediments deposited onNorthwind Ridge preserve a detailed record of glacial andinterglacial cycles for the last few hundred-thousand to onemillion years. This report includes quantitative data onforaminifers and selected sediment size-fraction data insamples from Northwind Ridge core PI-88AR P5.
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The U.S. Geological Survey recovered 9 piston cores from theNorthwind Ridge in the Canada Basin of the Arctic Ocean from acruise of the USCGC Polar Star during 1988. Preliminaryanalysis of the cores suggests sediments deposited onNorthwind Ridge preserve a detailed record of glacial andinterglacial cycles for the last few hundred-thousand to onemillion years. This report includes quantitative data onforaminifers and selected sediment size-fraction data in 98samples from Northwind Ridge core PI-88AR P3, 51 samples fromcore PI-88-AR P7 and 117 samples from core PI-88-AR P9.
In this data release, Cenozoic calcareous nannofossil occurrence charts are provided as Microsoft Excel spreadsheets for 17 cores from the South Atlantic Coastal Plain (North Carolina, South Carolina, and Georgia) Samples have been assigned a USGS sample number and are organized by depth below the land surface. Based on their known stratigraphic position, lithology, and specific calcareous nannofossil species content, each sample, where possible, was assigned to a geologic formation, age, and standard Martini (1971) calcareous nannofossil biostratigraphic zone. Five additional reference files are provided: (1) location information for each core, well, or outcrop, (2) a list of calcareous nannofossil species found...
In this data release, Cenozoic calcareous nannofossil occurrence charts are provided as Microsoft Excel spreadsheets for 15 cores or outcrops from the Gulf Coastal Plain (Alabama, Mississippi, and Georgia). Samples have been assigned a USGS sample number and are organized by depth below (cores and wells) or height above (outcrops) the land surface. Based on their known stratigraphic position, lithology, and specific calcareous nannofossil species content, each sample, where possible, was assigned to a geologic formation, age, and standard Martini (1971) calcareous nannofossil biostratigraphic zone. Five additional reference files are provided: (1) location information for each core or outcrop, (2) a list of calcareous...
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The Arctic Ostracode Database provides species census data for about100 species of benthic marine Ostracoda from modern surface and lateQuaternary sediments from various parts of the Arctic Ocean andadjacent seas. Ostracodes are a microfossil group of bivalvedCrustacea that secrete a calcareous shell commonly preserved insediments in the Arctic region. Because many ostracode species haveecological limits controlled by temperature, salinity, oxygen, foodand other factors, they can provide an important tool forpaleoceanographic reconstruction in the Arctic. Some recentapplications of ostracodes to understanding Arctic Ocean historyinclude Briggs (1983), Reimnitz et al. (1983, 1992), McDougall etal. (1986), Clark et...


    map background search result map search result map Planktic foraminifer census data from Northwind Ridgecore 5 Arctic Ocean Planktic foraminifer census data from Northwind Ridgecores PI-88-AR P3, PI-88-AR P7, and PI-88-AR P9, ArcticOcean Cenozoic Calcareous Nannofossil Occurrences from South Atlantic Coastal Plain Cores Cenozoic Calcareous Nannofossil Occurrences from Gulf Coastal Plain Cores and Outcrops Planktic foraminifer census data from Northwind Ridgecores PI-88-AR P3, PI-88-AR P7, and PI-88-AR P9, ArcticOcean Cenozoic Calcareous Nannofossil Occurrences from Gulf Coastal Plain Cores and Outcrops Cenozoic Calcareous Nannofossil Occurrences from South Atlantic Coastal Plain Cores