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Moody, Judith; Chaboudy, Louis R; Worsley, Thomas R (1988): Pelagic phosphorus accumulation in the Pacific Ocean [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.726936, Supplement to: Moody, J et al. (1988): Pacific pelagic phosphorus accumulation during the last 10 m.y. Paleoceanography, 3(1), 113-136, https://doi.org/10.1029/PA003i001p00113

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Abstract:
As a limiting nutrient to marine life, phosphorus (P) is an effective tracer of today's marine productivity. The distribution of P in marine sediments likewise tracks the history of marine productivity because of its relative insolubility in seawater. CaCO3, biogenic opal, terrigenous sediment, and total P have been measured in cores from nine Pacific sites (Deep Sea Drilling Project (DSDP) 65, 66, 310, 77, 62, 572, 463, 586, and GPC-3) and one subantarctic (DSDP 266) site. These sites were specifically chosen to provide information on biota burial flux changes with time for sedimentary sinks that represent key oceanographic variables, i.e., rate of upwelling, water depth, and carbonate dissolution gradient. The accumulation rates of these components for the last 10 Ma were then calculated from determined core age versus depth plots, core bulk density, and porosity data. The accumulation of P weakly correlates with that of CaCO3, moderately with that of total sediment, and very strongly with carbonate-free accumulation. Two prominent peaks for all components occur at 2-3 Ma and 5-6 Ma, and record the chemical loading of dissolved CaCO3, SiO2, and P from glacially emergent continental shelves. These results indicate that continental shelf phosphorites form during interglacially high sea levels and correspond to low deep-sea P accumulation rates, whereas glacially lowered sea levels allow for shelf bypassing and greater deep-sea P accumulation rates.
Project(s):
Deep Sea Drilling Project (DSDP)
Silicon Cycling in the World Ocean (SINOPS)
Funding:
Fourth Framework Programme (FP4), grant/award no. MAS3970141: Silicon Cycling in the World Ocean
Coverage:
Median Latitude: 4.215416 * Median Longitude: -179.190623 * South-bound Latitude: -56.402200 * West-bound Longitude: 110.111700 * North-bound Latitude: 36.868500 * East-bound Longitude: -113.842000
Date/Time Start: 1969-08-15T00:00:00 * Date/Time End: 1982-11-19T00:00:00
Event(s):
7-62A * Latitude: 1.870000 * Longitude: 141.938300 * Date/Time: 1969-08-15T00:00:00 * Elevation: -2607.0 m * Penetration: 364 m * Recovery: 303.3 m * Location: North Pacific/RIDGE * Campaign: Leg7 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 38 cores; 337 m cored; 0 m drilled; 90 % recovery
7-65 * Latitude: 4.353500 * Longitude: 176.985700 * Date/Time: 1969-09-11T00:00:00 * Elevation: -6142.0 m * Penetration: 145 m * Recovery: 130.5 m * Location: North Pacific/BASIN * Campaign: Leg7 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 17 cores; 144 m cored; 0 m drilled; 90.6 % recovery
7-66A * Latitude: 2.376800 * Longitude: -166.121800 * Date/Time: 1969-09-19T00:00:00 * Elevation: -5326.0 m * Penetration: 86 m * Recovery: 65.8 m * Location: North Pacific/BASIN * Campaign: Leg7 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 8 cores; 69 m cored; 0 m drilled; 95.4 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
10 datasets

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Datasets listed in this publication series

  1. Moody, J; Chaboudy, LR; Worsley, TR (1988): (Table 2) Geochemistry and acculumation rates of DSDP Hole 7-62A. https://doi.org/10.1594/PANGAEA.52340
  2. Moody, J; Chaboudy, LR; Worsley, TR (1988): (Table 2) Geochemistry and acculumation rates of DSDP Hole 7-65. https://doi.org/10.1594/PANGAEA.52339
  3. Moody, J; Chaboudy, LR; Worsley, TR (1988): (Table 2) Geochemistry and acculumation rates of DSDP Hole 7-66A. https://doi.org/10.1594/PANGAEA.52341
  4. Moody, J; Chaboudy, LR; Worsley, TR (1988): (Table 2) Geochemistry and acculumation rates of DSDP Hole 9-77. https://doi.org/10.1594/PANGAEA.52342
  5. Moody, J; Chaboudy, LR; Worsley, TR (1988): (Table 2) Geochemistry and acculumation rates of DSDP Hole 28-266. https://doi.org/10.1594/PANGAEA.52343
  6. Moody, J; Chaboudy, LR; Worsley, TR (1988): (Table 2) Geochemistry and acculumation rates of DSDP Hole 32-310. https://doi.org/10.1594/PANGAEA.52344
  7. Moody, J; Chaboudy, LR; Worsley, TR (1988): (Table 2) Geochemistry and acculumation rates of DSDP Hole 62-463. https://doi.org/10.1594/PANGAEA.52345
  8. Moody, J; Chaboudy, LR; Worsley, TR (1988): (Table 2) Geochemistry and acculumation rates of DSDP Hole 85-572. https://doi.org/10.1594/PANGAEA.52346
  9. Moody, J; Chaboudy, LR; Worsley, TR (1988): (Table 2) Geochemistry and acculumation rates of DSDP Hole 89-586. https://doi.org/10.1594/PANGAEA.52347
  10. Moody, J; Chaboudy, LR; Worsley, TR (1988): (Table 2) Geochemistry and acculumation rates of sediment core GPC-3. https://doi.org/10.1594/PANGAEA.52348