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Ginsburg, G D; Soloviev, Valery; Matveeva, T; Andreeva, Irina A (2000): Grain size composition of sediments from ODP Leg 164 sites [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.804236, Supplement to: Ginsburg, GD et al. (2000): Sediment grain-size control on gas hydrate presence, Sites 994, 995, and 997. In: Paull, CK; Matsumoto, R; Wallace, PJ; Dillon, WP (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 164, 1-9, https://doi.org/10.2973/odp.proc.sr.164.236.2000

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Abstract:
This research was designed to check the assumption of the grain-size control on a gas hydrate presence in the Blake Ridge sediments; the assumption had originated from the data gained at Deep Sea Drilling Project (DSDP) Site 533. Granulometric analysis (the combined pipette-sieve method) of the 345 sediment samples obtained after pore-water squeezing from Ocean Drilling Program (ODP) Sites 994, 995, and 997 has provided support for this assumption. The zone of negative anomalies of pore-water chlorinity, which is generally recognized to be gas hydrate bearing, is confined, as a whole, to the interval of comparatively coarse-grained sediments in each of the three site columns because content of the fine fractions <0.05, <0.01, <0.005, and <0.001 mm is lower there (although the character of this control changes from site to site). The individual chlorinity anomalies also coincide, for the most part, with relatively coarse-grained sediments.
Project(s):
Coverage:
Median Latitude: 31.806762 * Median Longitude: -75.517718 * South-bound Latitude: 31.785700 * West-bound Longitude: -75.545900 * North-bound Latitude: 31.843300 * East-bound Longitude: -75.468500
Date/Time Start: 1995-11-08T12:45:00 * Date/Time End: 1995-12-17T07:25:00
Size:
4 datasets

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