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Minai, Yoshitaka; Matsumoto, Ryo; Tominaga, Takeshi (1986): Concentrations of major-element oxides and minor and trace elements at DSDP Legs 87, 57, 56 and 31. PANGAEA,, Supplement to: Minai, Y et al. (1986): Geochemistry of deep sea sediments from the Nankai Trough, the Japan Trench, and adjacent regions. In: Kagami, H; Karig, DE; Coulbourn, WT; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 87, 643-657,

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Sediments from Sites 582 (11 samples), 583 (19 samples), 584 (31 samples), 294 (1 sample), 296 (9 samples), 297 (3 samples), 436 (11 samples), and 439 (3 samples) were analyzed by X-ray fluorescence and/or instrumental neutron activation analysis. Ten major elements and 24 minor and trace elements (including 7 rare earth elements) were determined with these methods. Geochemistry varies systematically with both the site location and sediment age. Such variations are explained in terms of changes in sedimentation processes caused by plate motion and changes in ocean currents.
Median Latitude: 35.946518 * Median Longitude: 139.919395 * South-bound Latitude: 22.579000 * West-bound Longitude: 131.535500 * North-bound Latitude: 40.626800 * East-bound Longitude: 145.557800
Date/Time Start: 1973-07-06T00:00:00 * Date/Time End: 1982-08-05T00:00:00
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