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Dataset Overview | National Centers for Environmental Information (NCEI)

NOAA/WDS Paleoclimatology - Hodell and Venz-Curtis 2006 Late Neogene Southern Ocean Carbon Isotope 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 North Atlantic Ocean. The time period coverage is from 9000000 to 0 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: Hodell, D.A.; Venz, K.A. (2008-04-09): NOAA/WDS Paleoclimatology - Hodell and Venz-Curtis 2006 Late Neogene Southern Ocean Carbon Isotope Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/c3ah-c727. Accessed [date].
  • Please refer to Credit tab for full citation information.
noaa-ocean-8750
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  • Native Format(s)
Ordering Instructions Contact NCEI for other distribution options and instructions.
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: 9000000 cal yr BP to 0 cal yr BP;
Time Period -8998050 to 1950
Spatial Bounding Box Coordinates
West: -32.950122
East: 7.42
South: -46.88
North: 57.517
Spatial Coverage Map
General Documentation
Associated Resources
  • Late Neogene history of deepwater ventilation in the Southern Ocean
    • Associated Reference published 2006
      Hodell, D.A., and K. A. Venz-Curtis, 2006: Late Neogene history of deepwater ventilation in the Southern Ocean. Geochemistry, Geophysics, Geosystems, 7, , 10.1029/2005GC001211
Publication Dates
  • publication: 2008-04-09
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
ABSTRACT SUPPLIED BY ORIGINATOR: We compiled carbon isotope records from the North Atlantic, South Atlantic, and Pacific oceans to estimate changes in vertical and interbasinal δ13C gradients for the last 9 Myr. Benthic δ13C values of deep water in the South Atlantic decreased in a series of steps at ∼7, 2.75, and 1.55 Ma away from the North Atlantic and toward the Pacific. The benthic δ13C of intermediate water in the South Atlantic evolved differently from deep waters, resulting in an increase in the intermediate-to-deep δ13C gradient (Δ13CID). The Δ13CID increased in steps at ∼2.75 and 1.55 Ma, marking the development and intensification of a chemical divide in the Atlantic Ocean between well-ventilated intermediate water and poorly ventilated deep water. We suggest these changes in interbasinal and vertical gradients resulted from decreasing Northern Component Water and reduced ventilation of Southern Component Water (SCW). The latter was caused by several interrelated processes in Antarctic sources areas, including increased sea ice cover, enhanced surface water stratification, decreased Ekman-induced upwelling, and reduced vertical mixing across the thermocline. Because Antarctic surface water processes and deepwater ventilation rates ultimately influence atmospheric CO2 concentration, these processes may have acted as a positive feedback that contributed to the major cooling steps in late Neogene climate.
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: Hodell, D.A.; Venz, K.A. (2008-04-09): NOAA/WDS Paleoclimatology - Hodell and Venz-Curtis 2006 Late Neogene Southern Ocean Carbon Isotope Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/c3ah-c727. 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
  • Hodell, D.A.
  • Venz, K.A.
Originators
  • Hodell, D.A.
  • Venz, K.A.
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 > paleoceanography
  • earth science > paleoclimate > paleoceanography
  • earth science > paleoclimate > paleoceanography
  • earth science > paleoclimate > paleoceanography
  • earth science > paleoclimate > paleoceanography
  • earth science > paleoclimate > paleoceanography
  • earth science > paleoclimate > paleoceanography
  • earth science > paleoclimate > paleoceanography
  • earth science > paleoclimate > paleoceanography
  • earth science > paleoclimate > paleocean > carbon isotopes
Paleoenvironmental Standard Terms (PaST) Thesaurus
  • What: delta 18O; Material: Cibicidoides sp.
  • What: depth at sample end; Material: null
  • What: age; Material: null
  • What: delta 18O; Material: Cibicidoides wuellerstorfi
  • What: depth; Material: null
  • What: delta 13C; Material: benthic foraminifer
  • What: delta 18O; Material: benthic foraminifer
  • What: delta 13C; Material: Cibicidoides sp.
  • What: delta 13C; Material: benthic foraminifer
  • What: depth at sample start; Material: null
  • What: delta 18O; Material: benthic foraminifer
  • What: delta 18O; Material: benthic foraminifer
  • What: delta 13C; Material: benthic foraminifer
  • What: delta 13C; Material: Cibicidoides kullenbergi
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 > Atlantic Ocean > North Atlantic Ocean > ODP 982 > LATITUDE 57.517 > LONGITUDE -15.8665
  • Ocean > Atlantic Ocean > South Atlantic Ocean > ODP 704A > LATITUDE -46.88 > LONGITUDE 7.42
  • Ocean > Atlantic Ocean > North Atlantic Ocean > DSDP 607 > LATITUDE 41.000019 > LONGITUDE -32.950122
Use Constraints
  • Cite as: Hodell, D.A.; Venz, K.A. (2008-04-09): NOAA/WDS Paleoclimatology - Hodell and Venz-Curtis 2006 Late Neogene Southern Ocean Carbon Isotope Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/c3ah-c727. 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.
  • None
Fees
  • In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.
Last Modified: 2024-02-24
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