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Hughen, Konrad A; Lehmann, Scott J; Southon, John R; Overpeck, Jonathan T; Marchal, Olivier; Herring, C; Turnbull, J (2004): (Table S1) Age determination of ODP Site 165-1002. 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):
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 * Device: Composite Core (COMPCORE) * Comment: 57 cores; 516.6 m cored; 0 m drilled; 102.5% recovery
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1Sample code/labelSample labelHughen, Konrad A
2Age, dated materialDated materialHughen, Konrad A
3DEPTH, sediment/rockDepthmGeocode – mbsf
4Calendar yearsCal yrska BPHughen, Konrad AGISP2
5Calendar years, standard deviationCal yrs std dev±Hughen, Konrad AGISP2, count error only
6Calendar years, standard deviationCal yrs std dev±Hughen, Konrad Atotal cal age, includes correlation error
7Age, datedAge datedkaHughen, Konrad AAge, 14C AMSuncorrected
8Age, datedAge datedkaHughen, Konrad AAge, 14C milieu/reservoir correctedreservoir corrected
9Age, dated standard deviationAge dated std dev±Hughen, Konrad AAge, 14C AMSlab error only
10Age, dated standard deviationAge dated std dev±Hughen, Konrad Aincludes reservoir age error
11Delta 14CD14Cper milHughen, Konrad A
12Delta 14C, standard deviationD14C std dev±Hughen, Konrad Adue to 14C error only
13Delta 14C, standard deviationD14C std dev±Hughen, Konrad A+ due to cal error only
14Delta 14C, standard deviationD14C std dev±Hughen, Konrad A- due to cal error only
15CommentCommentHughen, Konrad A
Size:
3013 data points

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