Cariaco Basin 50KYr Radiocarbon Calibration and Reconstruction

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Hughen, K., S. Lehman, J. Southon, J. Overpeck, O. Marchal, C. Herring, and J. Turnbull
Publication_Date: February 2004
Title: Cariaco Basin 50KYr Radiocarbon Calibration and Reconstruction
Edition:
Geospatial_Data_Presentation_Form:
Series_Information:
Series_Name: IGBP PAGES/World Data Center for Paleoclimatology Data Contribution Series # 2004-006
Issue_Identification: 2004-006
Publication_Information:
Publication_Place: Boulder, CO
Publisher: NOAA/NGDC Paleoclimatology Program
Other_Citation_Details:
Online_Linkage: http://www.ncdc.noaa.gov/paleo/pubs/hughen2004/hughen2004.html
Description:
Abstract:
Cariaco Basin 50KYr Radiocarbon Calibration and Reconstruction. Accelerator Mass Spectrometry (AMS) 14C data from planktonic foraminifera from Ocean Drilling Program Site 1002, cores 1002D and 1002E, Cariaco Basin (10 deg. 42.73'N, 65 deg. 10.18'W, 893m. depth) ABSTRACT (from the online documentation): A series of 14C measurements in Ocean Drilling Program cores from the tropical Cariaco Basin, which have been correlated to the annual-layer counted chronology for the Greenland Ice Sheet Project 2 (GISP2) ice core, provides a high-resolution calibration of the radiocarbon time scale back to 50,000 years before the present. Independent radiometric dating of events correlated to GISP2 suggests that the calibration is accurate. Reconstructed 14C activities varied substantially during the last glacial period, including sharp peaks synchronous with the Laschamp and Mono Lake geomagnetic field intensity minimal and cosmogenic nuclide peaks in ice cores and marine sediments. Simulations with a geochemical box model suggest that much of the variability can be explained by geomagnetically modulated changes in 14C production rate together with plausible changes in deep-ocean ventilation and the global carbon cycle during glaciation. This work was supported by NSF (OCE-0117356), Lawrence Livermore National Laboratory (LDRD-97-ERI-009), and the U.S. Department of Energy (W-7405-Eng-48).
Purpose:
Not Available
Supplemental_Information:
REFERENCE: Hughen, K., S. Lehman, J. Southon, J. Overpeck, O. Marchal, C. Herring, and J. Turnbull. 2004. 14C Activity and Global Carbon Cycle Changes over the Past 50,000 Years. Science, Volume 303, Number 5655, 9 January 2004.
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: -10.18
East_Bounding_Coordinate: -10.18
North_Bounding_Coordinate: 42.73
South_Bounding_Coordinate: 42.73
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: GCMD PLATFORM
Theme_Keyword_Thesaurus: GCMD INSTRUMENT
Theme_Keyword_Thesaurus: PROJECT
Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword_Thesaurus: DATA SET LANGUAGE
Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON
Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > RADIOCARBON
Theme_Keyword: EARTH SCIENCE > PALEOCLIMATE > OCEAN/LAKE RECORDS > ISOTOPES
Theme_Keyword: EARTH SCIENCE > PALEOCLIMATE > OCEAN/LAKE RECORDS > MICROFOSSILS
Theme_Keyword: EARTH SCIENCE > PALEOCLIMATE > OCEAN/LAKE RECORDS > RADIOCARBON
Theme_Keyword: EARTH SCIENCE > PALEOCLIMATE > OCEAN/LAKE RECORDS > SEDIMENTS
Theme_Keyword: EARTH SCIENCE > PALEOCLIMATE > OCEAN/LAKE RECORDS > STRATIGRAPHIC SEQUENCE
Theme_Keyword: EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PROTISTS > AMOEBOIDS > FORAMINIFERS
Theme_Keyword: SHIPS
Theme_Keyword: SEDIMENT CORERS
Theme_Keyword: PAGES > PAST GLOBAL CHANGES, IGBP
Theme_Keyword: Foraminifers
Theme_Keyword: Cariaco Basin
Theme_Keyword: Carbon 14
Theme_Keyword: 14c
Theme_Keyword: Bulloides
Theme_Keyword: Radiocarbon Time Scale
Theme_Keyword: Reconstructions
Theme_Keyword: Carbon Cycle
Theme_Keyword: BIOTA
Theme_Keyword: CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
Theme_Keyword: GEOSCIENTIFIC INFORMATION
Theme_Keyword: OCEANS
Theme_Keyword: ENGLISH
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Place_Keyword: OCEAN > ARCTIC OCEAN
Place_Keyword: OCEAN > ATLANTIC OCEAN
Place_Keyword: GEOGRAPHIC REGION > POLAR
Access_Constraints: Not Available
Use_Constraints:
Not Available
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: KONRAD A. HUGHEN
Contact_Person_Primary:
Contact_Person: SCOTT J. LEHMAN
Contact_Person_Primary:
Contact_Person: JOHN SOUTHON
Contact_Person_Primary:
Contact_Person: JONATHAN T. OVERPECK
Contact_Person_Primary:
Contact_Person: O. MARCHALL
Contact_Person_Primary:
Contact_Person: C. HERRING
Contact_Person_Primary:
Contact_Person: J. TURNBULL
Contact_Position: INVESTIGATOR
Contact_Position: INVESTIGATOR
Contact_Position: INVESTIGATOR
Contact_Position: INVESTIGATOR
Contact_Position: INVESTIGATOR
Contact_Position: INVESTIGATOR
Contact_Position: INVESTIGATOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Woods Hole Oceanographic Institution
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Country: USA
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Institute of Arctic and Alpine Research
Address: University of Colorado
City: Boulder
State_or_Province: CO
Postal_Code: 80309
Country: USA
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Earth System Science
Address: University of California
City: Irvine
State_or_Province: California
Postal_Code: 92697-3100
Country: USA
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Institute of the Environment
Address: Department of Geosciences
Address: University of Arizona
City: Tucson
State_or_Province: AZ
Postal_Code: 85721-0077
Country: USA
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Department of Geology and Geophysics
Address: Woods Hole Oceanographic Institution
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Country: USA
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Department of Marine Chemistry and Geochemistry
Address: Woods Hole Oceanographic Institution
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Country: USA
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Institute of Arctic and Alpine Research
Address: University of Colorado
City: Boulder
State_or_Province: CO
Postal_Code: 80309
Country: USA
Contact_Voice_Telephone: (508) 289-3353
Contact_Electronic_Mail_Address: khughen@whoi.edu
Contact_Electronic_Mail_Address: jto@email.arizona.edu
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Not Available
Logical_Consistency_Report:
Not Available
Completeness_Report:
Not Available
Lineage:
Process_Step:
Process_Description:
Not Available
Process_Date: Unknown
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Spatial_Reference_Information:
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: WDC/PALEOCLIMATOLOGY, BOULDER > World Data Center for Paleoclimatology, Boulder
Contact_Person: WDC/PALEOCLIMATOLOGY, BOULDER
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: World Data Center for Paleoclimatology
Address: NOAA/NCDC Code E/GCx3
Address: 325 Broadway
City: Boulder
State_or_Province: CO
Postal_Code: 80303
Country: USA
Contact_Voice_Telephone: +1 (303) 497-6160
Contact_Facsimile_Telephone: +1 (303) 497-6513
Contact_Electronic_Mail_Address: paleo@noaa.gov
Resource_Description: NOAA_NCDC_PALEO-2004-006
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ascii, excel
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://www.ncdc.noaa.gov/paleo/
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://www.ncdc.noaa.gov/paleo/pubs/hughen2004/hug...
Access_Instructions:
Access to data and documentation
Fees: None
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Metadata_Reference_Information:
Metadata_Date: 20040315
Metadata_Review_Date: 20121018
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: GCMD User Support Office
Contact_Organization: NASA Global Change Master Directory
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Not Available
City: Lanham
State_or_Province: MD
Postal_Code: 20706
Country: USA
Contact_Voice_Telephone: Not Available
Contact_Electronic_Mail_Address: gcmduso@gcmd.gsfc.nasa.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
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