d'Hondt, Steven L; Arthur, Michael A (2002): (Table 1) Oxygen and carbon isotopic values of benthic foraminifera from the Upper Maastrichtian interval of various DSDP and ODP sites [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.846323, Supplement to: d'Hondt, SL; Arthur, MA (2002): Deep water in the late Maastrichtian ocean. Paleoceanography, 17(1), 8-1-8-11, https://doi.org/10.1029/1999PA000486
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Abstract:
Stable isotopic data from benthic foraminifera indicate the occurrence of at least three deepwater masses in the late Maastrichtian ocean. Given mean oceanic d18Ow of -1.0 per mil, the temperature of the coolest intermediate-depth waters was 5°-7°C, that of the deepest waters was 10°C, and that of the warmest intermediate waters was 13°-15°C. The cool intermediate-depth water mass probably originated in the high-latitude Southern Ocean. The deepest waters originated at least partly in the northern Atlantic. The source region for the warmest intermediate-depth water mass is unknown. Although much of the late Maastrichtian deep water was probably preconditioned for winter sinking by low- or middle-latitude evaporation, no more than ~11% of late Maastrichtian deep water could have been directly actuated by low-latitude sea surface evaporation. At least in the southern Atlantic and Indian Oceans, heat transport by upwelling of deep water was not the primary cause of mild sea surface and coastal temperatures.
Project(s):
Deep Sea Drilling Project (DSDP)
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: -6.948365 * Median Longitude: 41.779841 * South-bound Latitude: -65.160000 * West-bound Longitude: -76.112300 * North-bound Latitude: 40.360800 * East-bound Longitude: 178.919000
Date/Time Start: 1969-01-09T00:00:00 * Date/Time End: 1988-10-26T00:00:00
Minimum Elevation: -4506.0 m * Maximum Elevation: -2086.0 m
Event(s):
3-20C * Latitude: -28.524500 * Longitude: -26.845500 * Date/Time: 1969-01-09T00:00:00 * Elevation: -4506.0 m * Penetration: 72.3 m * Recovery: 48.6 m * Location: South Atlantic/VALLEY * Campaign: Leg3 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 7 cores; 50.5 m cored; 0 m drilled; 96.2 % recovery
32-305 * Latitude: 32.002200 * Longitude: 157.850000 * Date/Time: 1973-08-29T00:00:00 * Elevation: -2903.0 m * Penetration: 640.5 m * Recovery: 212.2 m * Location: North Pacific/CONT RISE * Campaign: Leg32 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 67 cores; 622 m cored; 9 m drilled; 34.1 % recovery
39-357 * Latitude: -30.004200 * Longitude: -35.559800 * Date/Time: 1974-11-23T00:00:00 * Elevation: -2086.0 m * Penetration: 797 m * Recovery: 344.3 m * Location: South Atlantic/CONT RISE * Campaign: Leg39 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 50 cores; 463.5 m cored; 9.5 m drilled; 74.3 % recovery
Parameter(s):
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
315 data points