Hughen, Konrad A; Lehman, Scott J; Southon, John R; Overpeck, Jonathan T; Marchal, Olivier; Herring, C; Turnbull, J (2004): (Table S1) Age determination of ODP Site 165-1002 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.772071, Supplement to: Hughen, KA et al. (2004): 14C Activity and Global Carbon Cycle Changes over the Past 50,000 Years. Science, 303(5655), 202-207, https://doi.org/10.1126/science.1090300
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Abstract:
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.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: 10.706100 * Longitude: -65.169617
Date/Time Start: 1996-02-18T00:00:00 * Date/Time End: 1996-02-20T00:00:00
Minimum DEPTH, sediment/rock: 0.063 m * Maximum DEPTH, sediment/rock: 28.163 m
Event(s):
165-1002 * Latitude: 10.706100 * Longitude: -65.169617 * Date/Time Start: 1996-02-18T00:00:00 * Date/Time End: 1996-02-20T00:00:00 * Elevation: -892.9 m * Penetration: 516.6 m * Recovery: 529.3 m * Location: Cayman Rise, Caribbean Sea * Campaign: Leg165 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 57 cores; 516.6 m cored; 0 m drilled; 102.5% recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | Hughen, Konrad A | |||
| 2 | Age, dated material | Dated material | Hughen, Konrad A | |||
| 3 | DEPTH, sediment/rock | Depth sed | m | Geocode – mbsf | ||
| 4 | Calendar age | Cal age | ka BP | Hughen, Konrad A | GISP2 | |
| 5 | Calendar age, standard deviation | Cal age std dev | ± | Hughen, Konrad A | GISP2, count error only | |
| 6 | Calendar age, standard deviation | Cal age std dev | ± | Hughen, Konrad A | total cal age, includes correlation error | |
| 7 | Age, dated | Age dated | ka | Hughen, Konrad A | Age, 14C AMS | uncorrected |
| 8 | Age, dated | Age dated | ka | Hughen, Konrad A | Age, 14C milieu/reservoir corrected | reservoir corrected |
| 9 | Age, dated standard deviation | Age dated std dev | ± | Hughen, Konrad A | Age, 14C AMS | lab error only |
| 10 | Age, dated standard deviation | Age dated std dev | ± | Hughen, Konrad A | includes reservoir age error | |
| 11 | Δ14C | Δ14C | ‰ | Hughen, Konrad A | ||
| 12 | Δ14C, standard deviation | Δ14C std dev | ± | Hughen, Konrad A | due to 14C error only | |
| 13 | Δ14C, standard deviation | Δ14C std dev | ± | Hughen, Konrad A | + due to cal error only | |
| 14 | Δ14C, standard deviation | Δ14C std dev | ± | Hughen, Konrad A | - due to cal error only | |
| 15 | Comment | Comment | Hughen, Konrad A |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
3013 data points
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