Radiocarbon age of organic carbon bound in diatom frustules
Entry ID: Diatom_bound_organic_C_14C_age

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Summary
Abstract: This data set is comprised of radiocarbon ages derived from organic
carbon that is bound in diatom frustules found in sediment cores from
the Southern Ocean. The sediments were analyzed using a accelerator
mass spectrometer (AMS) at the National Ocean Sciences Accelerator
Mass Spectrometry Facility, Woods Hole Oceanographic Institution.
Research was made possible by a grant from the US National Science
Foundation Office of Polar Programs and collaboration with French
researchers who provided approximately 65% of the samples analyzed.
Currently, the data is available in spreadsheet format but only from
the investigators listed below. Results available to date indicate
that diatoms are often transported and that diatom-bound organic
carbon can accordingly be substantially older than the sediment
horizon in which it is found. The data set will be published as soon
as results from diatomaceous debris sorted according to degree of
preservation is available.

Geographic Coverage
 N: -44.0 S: -68.0  E: 180.0  W: -180.0
 Min Depth: 0 CM I COR  Max Depth: 252 CM I COR

Data Set Citation
Dataset Originator/Creator: Hayes, J. M., Donoghue, J. C., Manganini, S. J.
Dataset Title: Radiocarbon ages of diatoms from Southern Ocean sediments
Dataset Release Date: December, 2002
Dataset Release Place: Woods Hole, MA
Dataset Publisher: NOSAMS, WHOI
Data Presentation Form: Spreadsheet


Location Keywords
OCEAN > SOUTHERN OCEAN
GEOGRAPHIC REGION > POLAR


Science Keywords
OCEANS >MARINE SEDIMENTS >BIOGENIC SEDIMENTS    [Definition]
OCEANS >MARINE SEDIMENTS >STRATIGRAPHIC SEQUENCE    [Definition]
PALEOCLIMATE >OCEAN/LAKE RECORDS >MICROFOSSILS >DIATOM FRUSTULES    [Definition]
PALEOCLIMATE >OCEAN/LAKE RECORDS >RADIOCARBON    [Definition]
PALEOCLIMATE >OCEAN/LAKE RECORDS >SEDIMENTS    [Definition]
PALEOCLIMATE >OCEAN/LAKE RECORDS >STRATIGRAPHIC SEQUENCE    [Definition]
SOLID EARTH >GEOCHEMISTRY >GEOCHEMICAL PROPERTIES >ISOTOPES    [Definition]
SOLID EARTH >ROCKS/MINERALS/CRYSTALS >AGE DETERMINATIONS    [Definition]
SOLID EARTH >ROCKS/MINERALS/CRYSTALS >SEDIMENTS    [Definition]
OCEANS >MARINE SEDIMENTS >SEDIMENT CHEMISTRY    [Definition]


ISO Topic Category
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
GEOSCIENTIFIC INFORMATION
OCEANS


Instrument
SEDIMENT CORERS    [Information]
AMS >ACCELERATOR MASS SPECTROMETERS    [Information]


Project
ESIP >Earth Science Information Partners Program    [Information]


Quality
Data set is largely complete. Researchers are awaiting comparison
data prior to publication.


Access Constraints
Available results do not provide the basis for an optimal
publiation. Further samples will be analyzed during the second
quarter of 2003. A publication will be prepared as soon as possible
thereafter.


Use Constraints
Please cite all data providers


Keywords
DIATOMS
RADIOCARBON AGES
14C
SEDIMENTS
SOUTHERN OCEAN
DIATOM FRUSTRULES


Data Set Progress
IN WORK


Originating Center
WHOI


Data Center
National Ocean Sciences Accelerator Mass Spectrometer Facility, Department of Geology and Geophysics, Woods Hole Oceanographic Institution    [Information]
Data Center URL: http://www.nosams.whoi.edu/

Data Center Personnel
Name: JOANNE C. DONOGHUE
Phone: (508) 289-4900
Fax: (508) 457-2183
Email: jdonoghue at whoi.edu
Contact Address:
National Ocean Sciences Accelerator Mass Spectrometry Facility
Department Geology and Geophysics
Woods Hole Oceanographic Institution
City: Woods Hole
Province or State: MA
Postal Code: 02543
Country: USA


Personnel
JOHN M. HAYES
Role: INVESTIGATOR
Phone: (508) 289-3345
Fax: (508) 457-2183
Email: jhayes at whoi.edu
Contact Address:
National Ocean Sciences Accelerator Mass Spectrometry Facility
Department Geology and Geophysics
Woods Hole Oceanographic Institution
City: Woods Hole
Province or State: MA
Postal Code: 02543
Country: USA


JOANNE C. DONOGHUE
Role: INVESTIGATOR
Phone: (508) 289-4900
Fax: (508) 457-2183
Email: jdonoghue at whoi.edu
Contact Address:
National Ocean Sciences Accelerator Mass Spectrometry Facility
Department Geology and Geophysics
Woods Hole Oceanographic Institution
City: Woods Hole
Province or State: MA
Postal Code: 02543
Country: USA


JOHN M. HAYES
Role: TECHNICAL CONTACT
Phone: (508) 289-3345
Fax: (508) 457-2183
Email: jhayes at whoi.edu
Contact Address:
National Ocean Sciences Accelerator Mass Spectrometry Facility
Department Geology and Geophysics
Woods Hole Oceanographic Institution
City: Woods Hole
Province or State: MA
Postal Code: 02543
Country: USA


JOHN M. HAYES
Role: DIF AUTHOR
Phone: (508) 289-3345
Fax: (508) 457-2183
Email: jhayes at whoi.edu
Contact Address:
National Ocean Sciences Accelerator Mass Spectrometry Facility
Department Geology and Geophysics
Woods Hole Oceanographic Institution
City: Woods Hole
Province or State: MA
Postal Code: 02543
Country: USA


Publications/References
Ocean Sciences 2002 poster, "Radiocarbon dates based on organic matter
in diatom frustules," J. C. Donoghue, J. M. Hayes, S. J. Manganini,
and R. Francois

Creation and Review Dates
DIF Creation Date: 2002-12-30
Last DIF Revision Date: 2010-07-21
Future DIF Review Date: 2003-12-30

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