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  • Data  (3)
  • 165-1002; Age, 14C AMS; Age, 14C milieu/reservoir corrected; Age, dated; Age, dated material; Age, dated standard deviation; Calendar age; Calendar age, standard deviation; Cayman Rise, Caribbean Sea; Comment; COMPCORE; Composite Core; DEPTH, sediment/rock; Joides Resolution; Leg165; Ocean Drilling Program; ODP; Sample code/label; Δ14C; Δ14C, standard deviation  (1)
  • 165-1002; Age, 14C AMS; Age, 14C milieu/reservoir corrected; Age, dated; Age, dated material; Age, dated standard deviation; Calendar age; Calendar age, standard deviation; Cayman Rise, Caribbean Sea; Comment; Comment 2 (continued); COMPCORE; Composite Core; DEPTH, sediment/rock; DSDP/ODP/IODP sample designation; Joides Resolution; Leg165; Ocean Drilling Program; ODP; Sample code/label; Sample code/label 2; Δ14C; Δ14C, standard deviation  (1)
  • 86-576; 86-576B; 86-578; Atomic absorption spectrometry (AAS); Beryllium-10; Beryllium-10, standard deviation; Beryllium-10/Beryllium-9, standard deviation; Beryllium-10/Beryllium-9 ratio; Calcium carbonate; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Event label; Glomar Challenger; Leg86; North Pacific; Sample code/label; see reference(s)  (1)
Collection
  • Data  (3)
Source
Keywords
Publisher
Years
  • 1
    facet.materialart.
    Unknown
    (Table 1) 10 Beryllium and CaCO3 at DSDP Holes 86-576B, 86-576, and 86-578
    PANGAEA
    In:  Supplement to: Ku, Teh-Lung; Southon, John R; Vogel, John S; Liang, Z C; Kusakabe, M; Nelson, D Erle (1985): 10Be distributions in Deep Sea Drilling Project Site 576 and Site 578 sediments studied by accelerator mass spectrometry. In: Heath GR; Burckle LH; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 86, 539-546, https://doi.org/10.2973/dsdp.proc.86.122.1985
    Details
    Publication Date: 2023-06-27
    Description: Extension of the 10Be geochronology for deep-sea sediments beyond the limit of late Pliocene age found in published works has been attempted. The results obtained on sediments from Deep Sea Drilling Project (DSDP) Sites 576 and 578 of Leg 86 suggest the feasibility of dating sediments as old as 12 to 15 m.y. At both sites, there have been large changes in sedimentation rate, with the Pleistocene sediments accumulating several times faster than those of the Pliocene, which in turn were deposited several times more rapidly than the late Miocene sediments. The Pleistocene-Pliocene section is considerably thicker in Hole 578 than in Hole 576B: the respective depths for the 7 m.y. time boundary in the two holes are about 125 and about 25 m. These 10Be-based age estimates are in agreement with the paleomagnetic stratigraphies established for the two sites. The suggested enhancement in the oceanic deposition of 10Be before 7 to 9 m.y. ago, as noticed in manganese crusts, has found tentative support from the present sedimentary records. A preliminary search for 10Be production variation during a geomagnetic field reversal has been conducted. In Hole 578, an enhanced 10Be concentration is found in a sample close to the Brunhes/Matuyama reversal boundary. More detailed and systematic measurements are required to confirm this observation, which bears on the detailed behavior of the geomagnetic field during the reversal.
    Keywords: 86-576; 86-576B; 86-578; Atomic absorption spectrometry (AAS); Beryllium-10; Beryllium-10, standard deviation; Beryllium-10/Beryllium-9, standard deviation; Beryllium-10/Beryllium-9 ratio; Calcium carbonate; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Event label; Glomar Challenger; Leg86; North Pacific; Sample code/label; see reference(s)
    Type: Dataset
    Format: text/tab-separated-values, 201 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 2
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    Unknown
    (Table S1) Age determination of ODP Site 165-1002 (2004)
    PANGAEA
    In:  Supplement to: Hughen, Konrad A; Lehman, Scott J; Southon, John R; Overpeck, Jonathan T; Marchal, Olivier; Herring, C; Turnbull, J (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
    Details
    Publication Date: 2024-01-09
    Description: 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.
    Keywords: 165-1002; Age, 14C AMS; Age, 14C milieu/reservoir corrected; Age, dated; Age, dated material; Age, dated standard deviation; Calendar age; Calendar age, standard deviation; Cayman Rise, Caribbean Sea; Comment; COMPCORE; Composite Core; DEPTH, sediment/rock; Joides Resolution; Leg165; Ocean Drilling Program; ODP; Sample code/label; Δ14C; Δ14C, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 3013 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 3
    facet.materialart.
    Unknown
    Age determination of ODP Site 165-1002 (2006)
    PANGAEA
    In:  Supplement to: Hughen, Konrad A; Southon, John R; Lehman, Scott J; Bertrand, Chanda J H; Turnbull, J (2006): Marine-derived 14C calibration and activity record for the past 50,000 years updated from the Cariaco Basin. Quaternary Science Reviews, 25(23-24), 3216-3227, https://doi.org/10.1016/j.quascirev.2006.03.014
    Details
    Publication Date: 2024-01-09
    Description: An expanded Cariaco Basin 14C chronology is tied to 230Th-dated Hulu Cave speleothem records in order to provide detailed marine-based 14C calibration for the past 50,000 years. The revised, high-resolution Cariaco 14C calibration record agrees well with data from 230Th-dated fossil corals back to 33 ka, with continued agreement despite increased scatter back to 50 ka, suggesting that the record provides accurate calibration back to the limits of radiocarbon dating. The calibration data document highly elevated Delta14C during the Glacial period. Carbon cycle box model simulations show that the majority of observed Delta14C change can be explained by increased 14C production. However, from 45 to 15 ka, Delta14C remains anomalously high, indicating that the distribution of radiocarbon between surface and deep ocean reservoirs was different than it is today. Additional observations of the magnitude, spatial extent and timing of deep ocean Delta14C shifts are critical for a complete understanding of observed Glacial Delta14C variability.
    Keywords: 165-1002; Age, 14C AMS; Age, 14C milieu/reservoir corrected; Age, dated; Age, dated material; Age, dated standard deviation; Calendar age; Calendar age, standard deviation; Cayman Rise, Caribbean Sea; Comment; Comment 2 (continued); COMPCORE; Composite Core; DEPTH, sediment/rock; DSDP/ODP/IODP sample designation; Joides Resolution; Leg165; Ocean Drilling Program; ODP; Sample code/label; Sample code/label 2; Δ14C; Δ14C, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 7383 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
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