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Rea, David K; Snoeckx, Hilde; Joseph, Leah H (1998): Late Cenozoic eaolian deposits in the North Pacific [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.859273, Supplement to: Rea, DK et al. (1998): Late Cenozoic Eolian deposition in the North Pacific: Asian drying, Tibetan uplift, and cooling of the northern hemisphere. Paleoceanography, 13(3), 215-224, https://doi.org/10.1029/98PA00123

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Abstract:
A newly constructed record of eolian dust accumulation from the central North Pacific shows that dust deposition increased by an order of magnitude quite rapidly at 3.6 Ma. We associate this sudden drying with the uplift of at least the northern portion of the Tibetan Plateau, shutting off the Indian Ocean moisture source to central and western China. This ten-fold increase in atmospheric dust loading appears to be associated with the 1-m.y.-long shift toward heavy d18O values that occurred at 3.6-2.6 Ma. The dust grain-size record of wind intensity begins its late Cenozoic coarsening a million years before the drying event, at ~4.5 Ma. The northern hemisphere cooling that results in intensification of the subpolar westerly winds may have as its ultimate cause the drawdown of atmospheric CO2 in the latest Miocene and the early Pliocene closing of the Panamanian Seaway.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 44.689140 * Median Longitude: -177.635200 * South-bound Latitude: 44.688300 * West-bound Longitude: 168.272000 * North-bound Latitude: 44.689700 * East-bound Longitude: -168.240000
Date/Time Start: 1992-04-09T18:15:00 * Date/Time End: 1992-09-05T06:15:00
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
5 datasets

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Datasets listed in this publication series

  1. Rea, DK; Snoeckx, H; Joseph, LH (1998): (Table 2) Eolian mass accumulation rates for ODP Sites 145-885 and 145-886. https://doi.org/10.1594/PANGAEA.859269
  2. Rea, DK; Snoeckx, H; Joseph, LH (1998): (Table S1b) Eolian sediments and mass accumulation rates for ODP Hole 145-885A. https://doi.org/10.1594/PANGAEA.859270
  3. Rea, DK; Snoeckx, H; Joseph, LH (1998): (Table 1) Age model of ODP Sites 145-885 and 145-886. https://doi.org/10.1594/PANGAEA.859268
  4. Rea, DK; Snoeckx, H; Joseph, LH (1998): (Table S1c) Eolian sediments and mass accumulation rates for ODP Hole 145-886B. https://doi.org/10.1594/PANGAEA.859271
  5. Rea, DK; Snoeckx, H; Joseph, LH (1998): (Table S1d) Eolian sediments and mass accumulation rates for ODP Hole 145-886C. https://doi.org/10.1594/PANGAEA.859272