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Cariaco Basin 50KYr Radiocarbon Calibration and Reconstruction

Federal Geographic Data Committee (FGDC) Metadata:

Identification_Information
Data_Quality_Information
Spatial_Reference_Information
Distribution_Information
Metadata_Reference_Information

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

Place:

Place_Keyword_Thesaurus: GCMD
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_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

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

Spatial_Reference_Information:

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

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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