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Deroo, Gerard; Herbin, Jean-Paul (1983): (Table 1) Organic geochemistry of sediments recovered from DSDP Leg 65 Holes. PANGAEA, https://doi.org/10.1594/PANGAEA.818011, Supplement to: Deroo, G; Herbin, J-P (1983): The nature, origin, and distribution of organic material at Deep Sea Drilling Sites 482 through 485, Leg 65, in the Gulf of California. In: Lewis, BTR; Robinson, P; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 65, 431-438, https://doi.org/10.2973/dsdp.proc.65.116.1983

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Abstract:
Pliocene-Pleistocene marls, muds, and hemipelagic clays with some beds of silt and sand were recovered on Leg 65 near the crest of the East Pacific Rise at the mouth of the Gulf of California. The organic matter in the sediments is mainly of marine origin for the upper Pleistocene sediments (0-0.61 m.y.), while the lower Pleistocene deposits (0.61- 1.80 m.y.) are characterized by continental organic matter except near the bottom of the sediment section in Hole 483A, where marine organic matter was found. The sediments belong to an early stage of geochemical evolution, except in Hole 482D, where hydrothermal effects are invoked to explain the maturity of the organic matter above the basement.
Project(s):
Coverage:
Median Latitude: 22.849070 * Median Longitude: -108.241080 * South-bound Latitude: 22.748700 * West-bound Longitude: -108.747300 * North-bound Latitude: 23.185800 * East-bound Longitude: -107.903500
Date/Time Start: 1979-01-24T00:00:00 * Date/Time End: 1979-03-05T00:00:00
Minimum DEPTH, sediment/rock: 0.58 m * Maximum DEPTH, sediment/rock: 403.28 m
Event(s):
65-482 * Latitude: 22.789700 * Longitude: -107.993800 * Date/Time: 1979-01-24T00:00:00 * Elevation: -2998.0 m * Penetration: 4 m * Recovery: 3.9 m * Location: North Pacific/Gulf of California/CONT RISE * Campaign: Leg65 * Basis: Glomar Challenger * Device: Drilling/drill rig (DRILL) * Comment: 1 cores; 4 m cored; 0 m drilled; 98.5 % recovery
65-482A * Latitude: 22.789700 * Longitude: -107.993300 * Date/Time: 1979-01-24T00:00:00 * Elevation: -2998.0 m * Penetration: 44 m * Recovery: 18.7 m * Location: North Pacific/Gulf of California/CONT RISE * Campaign: Leg65 * Basis: Glomar Challenger * Device: Drilling/drill rig (DRILL) * Comment: 3 cores; 28.5 m cored; 0 m drilled; 65.7 % recovery
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 * Device: Drilling/drill rig (DRILL) * Comment: 24 cores; 184.5 m cored; 0 m drilled; 54.1 % recovery
Comment:
Sediment depth is given in mbsf. Empty cells mean not determined.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1Event labelEvent
2Latitude of eventLatitude
3Longitude of eventLongitude
4Elevation of eventElevationm
5Sample code/labelSample labelDeroo, GerardODP sample designation
6DEPTH, sediment/rockDepthmGeocode
7Carbon, inorganic, totalTIC%Deroo, GerardElement analyser CHN, LECOMultibly by 8.33 to determine equivalent wt. % CaCO3
8Carbon, organic, totalTOC%Deroo, GerardElement analyser CHN, LECO
9Hydrogen index, mass HC per unit mass total organic carbonHI, HC/TOCmg/gDeroo, GerardRock eval pyrolysis (Espitalié et al. 1977)
10Oxygen index, mass CO2 per unit mass total organic carbonOI, CO2/TOCmg/gDeroo, GerardRock eval pyrolysis (Espitalié et al. 1977)
11Hydrogen index *HI *mg/gDeroo, GerardRock eval pyrolysis (Espitalié et al. 1977)mg HC/g of rock
12IndexIndexDeroo, GerardRock eval pyrolysis (Espitalié et al. 1977)Oxygen index, mass CO2 per unit mass of rock, mg/g
13Pyrolysis temperature maximumTmax°CDeroo, GerardRock eval pyrolysis (Espitalié et al. 1977)
Size:
1012 data points

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