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Dataset Overview | National Centers for Environmental Information (NCEI)

NOAA/WDS Paleoclimatology - Global Eocene Nannoplankton Assemblage Data

browse graphicPaleoclimatology - Paleoceanography
This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI study type is Paleoceanography. The data include parameters of paleoceanography with a geographic location of Southern Ocean. The time period coverage is from 55000000 to 39000000 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data.
  • Cite as: Schneider, L.J.; Bralower, T.J.; Kump, L.R. (2011-08-22): NOAA/WDS Paleoclimatology - Global Eocene Nannoplankton Assemblage Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/8kz8-e778. Accessed [date].
  • Please refer to Credit tab for full citation information.
noaa-ocean-11926
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Distributor NOAA National Centers for Environmental Information
ncei.info@noaa.gov
Dataset Point of Contact NOAA National Centers for Environmental Information
ncei.info@noaa.gov
Dataset Point of Contact Data Center Contact
NOAA World Data Service for Paleoclimatology
828-271-4800
paleo@noaa.gov
Coverage Description Date Range: 55000000 cal yr BP to 39000000 cal yr BP;
Time Period -54998050 to -38998050
Spatial Bounding Box Coordinates
West: -13.0981
East: 158.2592
South: -65.1605
North: 49.0881
Spatial Coverage Map
General Documentation
Associated Resources
  • Response of nannoplankton to early Eocene ocean destratification
    • Associated Reference published 2011
      Leah J.Schneider, Timothy J.Bralower, Lee R.Kump, 2011: Response of nannoplankton to early Eocene ocean destratification. Palaeogeography, Palaeoclimatology, Palaeoecology, 310, 152-162, 10.1016/j.palaeo.2011.06.018
Publication Dates
  • publication: 2011-08-22
Data Presentation Form Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status Complete - production of the data has been completed
Data Update Frequency Data update frequency not available
Supplemental Information
STUDY NOTES: Tables of nannofossil counts from Eocene sediments collected from 7 Ocean Drilling Program (ODP) or Deep Sea Drilling Program (DSDP) cores distributed around the global ocean. Smear slides were prepared from sediment and 300 specimens per slide were counted.
ABSTRACT SUPPLIED BY ORIGINATOR: Nannoplankton play a significant role in the global carbon cycle; changes in the composition of the assemblage can influence primary productivity, carbon burial, and ultimately climate. Here counts of nannofossils in Eocene samples document one of the largest nannoplankton assemblage turnovers of the Cenozoic Era. This event is marked by the global expansion of Reticulofenestra at the termination of the early Eocene climatic optimum (EECO), and continues through the progressive cooling to the earliest Oligocene glaciation. To understand the mechanisms driving this assemblage shift we use multivariate statistical techniques and carbon and oxygen isotope records from localities worldwide. We find that the turnover in the global nannofossil assemblage is tied to thermal destratification of the ocean and a coincident decrease in the efficiency of the oceanic biologic pump at the height of the EECO. We propose that increased vertical mixing and increased nutrient supply to surface waters during the EECO caused a shift in the trophic structure towards enhanced productivity, influencing the global nannoplankton population.
Purpose Records of past climate and ocean circulation derived from marine sediments. Parameter keywords describe what was measured in this dataset. Additional summary information can be found in the abstracts of papers listed in the dataset citations.
Dataset Citation
  • Cite as: Schneider, L.J.; Bralower, T.J.; Kump, L.R. (2011-08-22): NOAA/WDS Paleoclimatology - Global Eocene Nannoplankton Assemblage Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/8kz8-e778. Accessed [date].
  • Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site.
Cited Authors
  • Schneider, L.J.
  • Bralower, T.J.
  • Kump, L.R.
Originators
  • Schneider, L.J.
  • Bralower, T.J.
  • Kump, L.R.
Publishers
  • NOAA National Centers for Environmental Information
Theme keywords Global Change Master Directory (GCMD) Science Keywords
  • Earth Science > Paleoclimate > Ocean/Lake Records
  • Earth Science > Climate Indicators > Paleoclimate Indicators > Ocean/Lake Records
Global Change Master Directory (GCMD) Science Keywords
  • earth science > paleoclimate > paleoceanography
  • earth science > paleoclimate > paleoceanography
  • earth science > paleoclimate > paleoceanography
  • earth science > paleoclimate > paleoceanography
  • earth science > paleoclimate > paleoceanography
  • earth science > paleoclimate > paleocean > population abundance
Paleoenvironmental Standard Terms (PaST) Thesaurus
  • What: depth; Material: null
  • What: sample identification; Material: null
  • What: depth at sample end; Material: null
  • What: identified coccolithophore; Material: null
  • What: depth at sample start; Material: null
Data Center keywords Global Change Master Directory (GCMD) Data Center Keywords
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Place keywords
  • Ocean > Southern Ocean > ODP 1263B > LATITUDE -28.5327 > LONGITUDE 2.7794
  • Ocean > Southern Ocean > ODP 1137 > LATITUDE -56.8333 > LONGITUDE 68.0933
  • Ocean > Atlantic Ocean > South Atlantic Ocean > ODP 690B > LATITUDE -65.1605 > LONGITUDE 1.2045
  • Ocean > Atlantic Ocean > North Atlantic Ocean > ODP 549 > LATITUDE 49.0881 > LONGITUDE -13.0981
  • Ocean > Pacific Ocean > North Pacific Ocean > ODP 1210 > LATITUDE 32.2236 > LONGITUDE 158.2592
  • Ocean > Indian Ocean > ODP 762 > LATITUDE -19.8869 > LONGITUDE 112.2539
  • Ocean > Southern Ocean > ODP 1135 > LATITUDE -59.7 > LONGITUDE 84.2733
Use Constraints
  • Cite as: Schneider, L.J.; Bralower, T.J.; Kump, L.R. (2011-08-22): NOAA/WDS Paleoclimatology - Global Eocene Nannoplankton Assemblage Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/8kz8-e778. Accessed [date].
  • Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
  • Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site.
Access Constraints
  • Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
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Last Modified: 2024-03-11
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