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Lichtfouse, Eric; Littke, Ralf; Disko, Ulrich; Willsch, H; Rullkötter, Jürgen; Stein, Ruediger (1992): Organic geochemistry of ODP Sites 128-798 and 128-799 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.777304, Supplement to: Lichtfouse, E et al. (1992): Geochemistry and petrology of organic matter in Miocene to Quaternary deep sea sediments from the Japan Sea (Sites 798 and 799). In: Pisciotto, KA; Ingle, JCJr.; von Breymann, MT; Barron, J; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 127/128(1), 667-675, https://doi.org/10.2973/odp.proc.sr.127128-1.173.1992

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Abstract:
Miocene to Quaternary sediments from the Oki Ridge (Site 798) and the Kita-Yamato Trough (Site 799) in the Japan Sea contain organic carbon ranging from about 0.6% in light-colored layers to almost 6% in dark layers. The organic matter consists of a variable mixture of marine and terrigenous contributions, the ratio of which is not correlated to the total organic carbon content. Marine organic particles clearly dominate in the deeper section of Hole 799B. The extractable bitumen is strongly dominated by long-chain alkenones from microalgae in the shallower sediments, whereas bishomohopanoic acid (C32) of eubacterial origin is the single most abundant compound in deeper samples. Normal alkanes and straight-chain carboxylic acids, both of which show a bimodal distribution with odd and even carbon-number predominance, respectively, are two other groups of compounds which are important constituents of the extracts. The deepest samples at Site 799 contain a considerable amount of short-chain components, which probably migrated upward from thermally more altered deeper sediments.
Project(s):
Coverage:
Median Latitude: 38.129410 * Median Longitude: 134.333160 * South-bound Latitude: 37.038300 * West-bound Longitude: 133.866500 * North-bound Latitude: 39.220500 * East-bound Longitude: 134.799800
Date/Time Start: 1989-08-27T07:15:00 * Date/Time End: 1989-10-12T03:40:00
Event(s):
128-798A * Latitude: 37.038300 * Longitude: 134.799800 * Date/Time Start: 1989-08-27T07:15:00 * Date/Time End: 1989-08-28T10:24:00 * Elevation: -914.0 m * Penetration: 143.3 m * Recovery: 148.27 m * Location: Japan Sea * Campaign: Leg128 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 17 cores; 143.3 m cored; 0 m drilled; 103.5 % recovery
128-798B * Latitude: 37.038500 * Longitude: 134.799600 * Date/Time Start: 1989-08-28T10:24:00 * Date/Time End: 1989-08-31T08:00:00 * Elevation: -911.0 m * Penetration: 517.9 m * Recovery: 514.42 m * Location: Japan Sea * Campaign: Leg128 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 54 cores; 517.9 m cored; 0 m drilled; 99.3 % recovery
128-799A * Latitude: 39.220500 * Longitude: 133.866900 * Date/Time Start: 1989-09-14T16:30:00 * Date/Time End: 1989-09-18T19:45:00 * Elevation: -2085.0 m * Penetration: 468.7 m * Recovery: 440.04 m * Location: Japan Sea * Campaign: Leg128 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 52 cores; 468.7 m cored; 0 m drilled; 93.9 % recovery
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