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Lu, Hailong; Matsumoto, Ryo; Watanabe, Yoshio (2000): Major element oxides in ODP Site 164-997 sediments. PANGAEA,, Supplement to: Lu, H et al. (2000): Data Report: Major element geochemistry of the sediments from Site 997, Blake Ridge, Western Atlantic. 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, 1-3,

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Since being first discovered in the Blake-Bahama region of the west Atlantic in the 1970s (Hollister, Ewing, et al., 1972, doi:10.2973/dsdp.proc.11.1972), submarine gas hydrates have been identified in the continental margin worldwide. Ocean Drilling Program (ODP) Leg 164 was the first drilling designated to study the occurrence and distribution of natural gas hydrates in Blake Ridge where a well developed, distinct BSR (Bottom Simulating Reflector) has been identified (Paull, Matsumoto, Wallace, et al., 1996, doi:10.2973/
It has been reported there is a prominent discrepancy between the BSR and the base of gas hydrate stability (Paull, Matsumoto, Wallace, et al., 1996, doi:10.2973/; Ruppel, 1997, doi:10.1130/0091-7613(1997)025<0699:ACTOAT>2.3.CO;2), though theoretically they should be at the same depth. Natural gas hydrate in marine sediments coexists with sediment particles, so detailed delineation of sediment geochemistry will be of benefit to solve this apparent discrepancy. The main objectives of this study are to supply background data of the major chemical compositions of sediments from a hydrated sediment section.
Median Latitude: 31.843250 * Median Longitude: -75.468525 * South-bound Latitude: 31.843200 * West-bound Longitude: -75.468550 * North-bound Latitude: 31.843300 * East-bound Longitude: -75.468500
Date/Time Start: 1995-12-06T00:00:00 * Date/Time End: 1995-12-17T07:25:00
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