[Parameters: Topic='OCEANS', Term='MARINE SEDIMENTS', Variable_Level_1='SEDIMENT CHEMISTRY']
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US Joint Global Ocean Flux Study (JGOFS) sediment samples Entry ID: AESOPS_ANDERSON_9530379SED |
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Summary
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Abstract:
This data set contains concentrations of naturally-occurring radionuclides (U-238, U-234, Th-230, Th-232, Pa-231 and Be-10) in marine sediments. Concentrations of U-series nuclides were measured by isotope dilution inductively-coupled mass spectrometry. Concentrations of Be-10 were measured by accelerator mass spectrometry. The data set also contains sediment lithology (% biogenic opal, determined by colorimetric spectrophotometry; % calcium carbonate, determined by coulometry; % organic carbon, determined by high-temperature combustion; and % lithogenic material, estimated by difference and independently from the concentration of Th-232, an element contained entirely in lithogenic phases). Radiocarbon dates, obtained by accelerator mass spectropmetry, used to constrain the chronologies of the cores are included as well. Sediment cores were collected as part of the US Joint Global Ocean Flux Study (JGOFS) Antarctic Environment and Southern Ocean Process Study (AESOPS). Cores were collected along 170 degrees West, between approximately 54 degrees S and 66 degrees S, during a cruise aboard the RVIB Nathaniel B Palmer in February-April, 1998 (NBP9802). The study was designed to compare biological productivity of the region during the Last Glacial Maximum with conditions that exist today. |
Related URL
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Link:
GET DATA
Description: U.S. JGOFS Southern Ocean (AESOPS) Data Link: GET DATA Description: Data sets for RVIB Nathaniel B Palmer February-April, 1998, cruise |
Geographic Coverage
| N: -54.0 | S: -66.0 | E: -170.0 | W: -170.0 |
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Temporal Coverage
| Start Date: 1998-02-01 |
| Stop Date: 1998-04-30 |
Location Keywords
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OCEAN
> SOUTHERN OCEAN
GEOGRAPHIC REGION > POLAR |
Science Keywords
| OCEANS >MARINE SEDIMENTS >SEDIMENT COMPOSITION [Definition] |
| PALEOCLIMATE >OCEAN/LAKE RECORDS >ISOTOPES [Definition] |
| PALEOCLIMATE >OCEAN/LAKE RECORDS >RADIOCARBON [Definition] |
| PALEOCLIMATE >OCEAN/LAKE RECORDS >SEDIMENTS [Definition] |
| SOLID EARTH >GEOCHEMISTRY >GEOCHEMICAL PROPERTIES >ISOTOPES [Definition] |
| SOLID EARTH >ROCKS/MINERALS/CRYSTALS >AGE DETERMINATIONS [Definition] |
| SOLID EARTH >ROCKS/MINERALS/CRYSTALS >MINERALS >MINERALOIDS [Definition] |
| SOLID EARTH >ROCKS/MINERALS/CRYSTALS >MINERALS [Definition] |
| SOLID EARTH >ROCKS/MINERALS/CRYSTALS >SEDIMENTS [Definition] |
| OCEANS >MARINE SEDIMENTS >SEDIMENT CHEMISTRY [Definition] |
ISO Topic Category
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CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
GEOSCIENTIFIC INFORMATION OCEANS |
Project
| JGOFS >Joint Global Ocean Flux Study, IGBP [Information] |
| AESOPS >U.S. JGOFS Antarctic Environment and Southern Ocean Process Study [Information] |
| ESIP >Earth Science Information Partners Program [Information] |
Keywords
| Uranium |
| Thorium |
| Protactinium |
| Beryllium |
| U |
| Th |
| Pa |
| Be |
| NBP9802 |
| Radionulides |
| opal |
| calcium carbonate |
| organic carbon |
| radiocarbon |
Originating Center
Data Center
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United States Joint Global Ocean Flux Study
[Information]
Data Center URL: http://usjgofs.whoi.edu/
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Biological and Chemical Oceanography Data Management Office
[Information]
Data Center URL: http://www.bco-dmo.org
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Personnel
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ROBERT
ANDERSON Role: DIF AUTHOR Phone: 845-365-8508 Fax: 845-353-815 Email: boba at ldeo.columbia.edu Contact Address: Geochemistry Building Lamont-Doherty Earth Observatory 61 Route 9W P.O. Box 1000 City: Palisades Province or State: NY Postal Code: 10964 Country: USA |
Creation and Review Dates
Last DIF Revision Date:
2009-05-13
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