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  • 151-910A; Depth, bottom/max; Depth, top/min; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Isotope ratio mass spectrometry; Joides Resolution; Leg151; North Greenland Sea; Ocean Drilling Program; ODP; Sample code/label; Strontium-87/Strontium-86 ratio  (1)
  • 154-926; Age, calculated calendar years; Age model; COMPCORE; Composite Core; DEPTH, sediment/rock; DSDP/ODP/IODP sample designation; Joides Resolution; Leg154; Ocean Drilling Program; ODP; Sample code/label; South Atlantic Ocean; Strontium-87/Strontium-86 ratio  (1)
  • 162-980; Age model; COMPCORE; Composite Core; DEPTH, sediment/rock; Joides Resolution; Leg162; Ocean Drilling Program; ODP; South Atlantic Ocean  (1)
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  • 1
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    Age model of ODP Site 162-980 in the subpolar North Atlantic (2000)
    PANGAEA
    Details
    Publication Date: 2024-03-02
    Keywords: 162-980; Age model; COMPCORE; Composite Core; DEPTH, sediment/rock; Joides Resolution; Leg162; Ocean Drilling Program; ODP; South Atlantic Ocean
    Type: Dataset
    Format: text/tab-separated-values, 48 data points
    Location Call Number Expected Availability
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  • 2
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    (Table 1) Strontium isotope ratios (87Sr/86Sr) of Neogloboquadrina pachyderma (sinistrally coiling) tests from ODP Hole 151-910A (1997)
    PANGAEA
    Details
    Publication Date: 2024-01-09
    Description: The sediment sequence at Ocean Drilling Program (ODP) Site 910 (556 m water depth) on the Yermak Plateau in the Arctic Ocean features a remarkable "overconsolidated section" from ~19 to 70-95 m below sea floor (m bsf), marked by large increases in bulk density and sediment strength. The ODP Leg 151 Shipboard Scientific Party interpreted the overconsolidated section to be caused by (1) grounding of a marine-based ice sheet, derived from Svalbard and perhaps the Barents Sea ice sheet, and/or (2) coarser-grained glacial sedimentation, which allowed increased compaction. Here I present planktonic foraminiferal d18O data based on Neogloboquadrina pachyderma (sinistrally coiling) that date the termination of overconsolidation near the boundary between isotope stages 16 and 17 (ca. 660 ka). No evidence is found for coarser grained sedimentation, because lithic fragments 〉150 µm exhibit similar mean concentrations throughout the upper 24.5 m bsf. The overconsolidated section may reflect more extensive ice-sheet grounding prior to ca. 660 ka, suggesting a major change in state of the Svalbard ice sheets during the mid-Quaternary. Furthermore, continuous sedimentation since that time argues against a pervasive Arctic ice shelf impinged on the Yermak Plateau during the past 660 k.y. These findings suggest that Svalbard ice-sheet history was largely independent of circum-Arctic ice-sheet history during the middle to late Quaternary.
    Keywords: 151-910A; Depth, bottom/max; Depth, top/min; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Isotope ratio mass spectrometry; Joides Resolution; Leg151; North Greenland Sea; Ocean Drilling Program; ODP; Sample code/label; Strontium-87/Strontium-86 ratio
    Type: Dataset
    Format: text/tab-separated-values, 12 data points
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  • 3
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    Core data of orbitally tuned Sr-isotope chemostratigraphy for the Late Middle and Late Miocene (1999)
    PANGAEA
    In:  Supplement to: Martin, Ellen E; Shackleton, Nicholas J; Zachos, James C; Flower, Benjamin P (1999): Orbitally Tuned Sr Isotope Chemostratigraphy for the Late Middle and Late Miocene. Paleoceanography, 14(1), 74-83, https://doi.org/10.1029/1998PA900008
    Details
    Publication Date: 2024-06-08
    Description: We present a Sr chemostratigraphic reference section for the late middle to late Miocene (14-5 Ma) from Ocean Drilling Program site 926 on the Ceara Rise. This site combines a precise, orbitally tuned timescale with a high sedimentation rate (15 m/m.y.), continuous deposition, and excellent biostratigraphic control. The Sr isotope curve is based on measurements of cleaned, planktonic foraminifera at 100-200 kyr sample intervals and it illustrates periods of rapid change in 87Sr/86Sr alternating with periods of little change. Chemostratigraphically-defined ages for these intervals can be determined within +/-0.8 m.y. and +/-1.6 m.y. respectively. There is excellent correlation with the published curve for site 588 [Hodell and Woodruff, 1994]; however the curve for site 747 [Oslick et al., 1994] exhibits less structure, which may be due to small errors in age estimates related to slow sedimentation rates, high-latitude fauna and an interval of complicated magnetics. Late Miocene data compare favorably with data from site 758 [Farrell et al., 1995].
    Keywords: 154-926; Age, calculated calendar years; Age model; COMPCORE; Composite Core; DEPTH, sediment/rock; DSDP/ODP/IODP sample designation; Joides Resolution; Leg154; Ocean Drilling Program; ODP; Sample code/label; South Atlantic Ocean; Strontium-87/Strontium-86 ratio
    Type: Dataset
    Format: text/tab-separated-values, 460 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
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