Ravelo, Ana Christina; Lyle, Mitchell W; Koizumi, Itaru; Caulet, Jean-Pierre; Fornaciari, Eliana; Hayashida, Akira; Heider, Franz; Hood, Julie A; Hovan, Steven A; Janecek, Thomas R; Janik, Aleksandra G; Stax, Rainer (1997): (Table 2) Age model control points, and CaCO3 and TOC accumulation rates of ODP Leg 167 sites [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.868690, Supplement to: Ravelo, AC et al. (1997): Pliocene carbonate accumulation along the California Margin. Paleoceanography, 12(6), 729-741, https://doi.org/10.1029/97PA02525
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Abstract:
Recent modeling studies call on increased ocean heat transport to explain high-latitude warming observed for intervals throughout the middle Pliocene. Possible vehicles for ocean heat transport are the poleward arms of the subtropical gyres. Sites from the California margin (Ocean Drilling Program Leg 167) provide monitors of wind field within the eastern arm of the gyre which may be an indication of basin-wide subtropical gyral strength. At most sites (water depths from 1106 to 4212 m) CaCO3 mass accumulation rate (MAR) was highest in the middle Pliocene (3.5-2.0 Ma). This high CaCO3 MAR 'event' is attributed primarily to higher CaCO3 production due to higher offshore upwelling associated with the zone of the greatest wind stress curl. Thus, in the middle Pliocene, there was enhanced wind stress curl along the California margin, and possibly enhanced North Pacific sub-tropical gyral circulation and meridional ocean heat advection.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 35.182256 * Median Longitude: -121.707276 * South-bound Latitude: 29.965033 * West-bound Longitude: -127.783000 * North-bound Latitude: 41.682817 * East-bound Longitude: -117.609600
Date/Time Start: 1996-05-02T00:00:00 * Date/Time End: 1996-06-17T00:00:00
Minimum DEPTH, sediment/rock: 3.030 m * Maximum DEPTH, sediment/rock: 387.400 m
Event(s):
167-1010 * Latitude: 29.965033 * Longitude: -118.100000 * Date/Time Start: 1996-05-02T00:00:00 * Date/Time End: 1996-05-06T00:00:00 * Elevation: -3465.7 m * Penetration: 533.7 m * Recovery: 522.3 m * Location: North Pacific Ocean * Campaign: Leg167 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 59 cores; 533.7 m cored; 0 m drilled; 97.9% recovery
167-1011 * Latitude: 31.280333 * Longitude: -117.609600 * Date/Time Start: 1996-05-06T00:00:00 * Date/Time End: 1996-05-09T00:00:00 * Elevation: -2021.2 m * Penetration: 636.4 m * Recovery: 636.6 m * Location: North Pacific Ocean * Campaign: Leg167 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 70 cores; 634.5 m cored; 0 m drilled; 100.3% recovery
167-1012 * Latitude: 32.282733 * Longitude: -118.383333 * Date/Time Start: 1996-05-10T00:00:00 * Date/Time End: 1996-05-12T00:00:00 * Elevation: -1772.3 m * Penetration: 488.4 m * Recovery: 487.9 m * Location: North Pacific Ocean * Campaign: Leg167 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 53 cores; 488.4 m cored; 0 m drilled; 99.9% recovery
Parameter(s):
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
1353 data points