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[文献書誌] S.Yamamoto: "Mathematical approach to calculate indices for depositional environments of pelagic-hemipelagic-terrigenous sediments" Mathematical Geology. 25. 867-879 (1993)
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[文献書誌] S.Yamaoto and M.Ota: "Flux processes of nepheloid.layers from estuary of Okkubi River into adiacent coral reef environments,Okinawa lsland Japan" Journal of Sedimentological Society of Japan. 39. 35-44 (1993)
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[文献書誌] S.Yamamoto: "Accreted Mesozoic pelaqic seamount in Chiral guarry,Hokkaido,Japan:petrographic evidence of flint-limestone cyles" Palaeogeography,Palaeoclimatology,Palaeoecology. 105. 125-137 (1993)
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[文献書誌] S.Yamoto: "Geochemical characteristics of Jurassic to Cretaceous bedded and nodular cherts of pelagic origin in Japan" The Compass.
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[文献書誌] S.Yamamoto and T.Chiba: "Sedimentation of terrigenous red soils in coastal ares sdjacent to an estuary and coral reefs,the Okkubi River estuary,…" Journal of Oceanography.