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Hoernes, Stephan; Friedrichsen, Hans (1983): Oxygen and hydrogen isotopes at DSDP Leg 65 Holes [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.818121, Supplement to: Hoernes, S; Friedrichsen, H (1983): Oxygen isotopic composition of basalts from Leg 65, Deep Sea Drilling Project. In: Lewis, BTR; Robinson, P; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 65, 661-665, https://doi.org/10.2973/dsdp.proc.65.132.1983

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Abstract:
In order to provide information on the degree of alteration of the very young basaltic basement drilled on Leg 65 in the mouth of the Gulf of California, we have measured the oxygen isotopic composition of whole rocks and mineral separates. Considerable data already exist for older ocean crust, in particular for the deep holes drilled in the Atlantic Ocean on Deep Sea Drilling Project (DSDP) Legs 37, 45, 46, and 51-53. These data indicate that in all of these holes, which include crust as young as 3.5 m.y. old, a significant amount of alteration has taken place as the result of low-temperature interaction between basalt and seawater (cf. Muehlenbachs, 1977, 1980; Hoernes et al., 1978; Friedrichsen and Hoernes, 1980). It is therefore of interest to determine whether Leg 65 crust, which is only 0.5 to 1.5 m.y. old, has experienced a similar degree of alteration.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 22.816536 * Median Longitude: -108.316220 * South-bound Latitude: 22.748700 * West-bound Longitude: -108.748300 * North-bound Latitude: 22.883300 * East-bound Longitude: -107.903800
Date/Time Start: 1979-01-24T00:00:00 * Date/Time End: 1979-03-05T00:00:00
Event(s):
65-482B * Latitude: 22.789700 * Longitude: -107.993300 * Date/Time: 1979-01-24T00:00:00 * Elevation: -2998.0 m * Penetration: 229 m * Recovery: 99.8 m * Location: North Pacific/Gulf of California/CONT RISE * Campaign: Leg65 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 24 cores; 184.5 m cored; 0 m drilled; 54.1 % recovery
65-482D * Latitude: 22.788500 * Longitude: -107.991800 * Date/Time: 1979-01-24T00:00:00 * Elevation: -3008.0 m * Penetration: 186.5 m * Recovery: 64.2 m * Location: North Pacific/Gulf of California/CONT RISE * Campaign: Leg65 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 13 cores; 114 m cored; 0 m drilled; 56.3 % recovery
65-483 * Latitude: 22.883300 * Longitude: -108.748300 * Date/Time: 1979-02-12T00:00:00 * Elevation: -3070.0 m * Penetration: 204.5 m * Recovery: 110.7 m * Location: North Pacific/Gulf of California/CONT RISE * Campaign: Leg65 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 26 cores; 204.5 m cored; 0 m drilled; 54.1 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets

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Datasets listed in this publication series

  1. Hoernes, S; Friedrichsen, H (1983): (Table 1) Oxygen isotopes for whole rock samples and mineral separates DSDP Leg 65 Holes. https://doi.org/10.1594/PANGAEA.818119
  2. Hoernes, S; Friedrichsen, H (1983): (Table 2) Hydrogen isotopes for selected whole rock samples at DSDP Leg 65 Holes. https://doi.org/10.1594/PANGAEA.818120