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- 要約等Geochemical analyses of biogenic opal, total organic carbon (TOC), total s......topic composition were conducted on the middle Eocene section of the ACEX cores obt......y IODP Expedition 302. The analyzed %TS contents were high in all the examined inter......was present in the deep layer of the paleo Arctic basin in contrast with the low salinity s...... siliceous microfossils. From the high %TS in Li......ical Unit 1/6, the extent of sea water supp......y from outside of the Arctic basin appeared......d after 45 Ma. The euxinic condition of the bottom water is suggested by the TOC-TS diagram. The anoxic environment was brough...
- 件名IODP Expedition 302 ACEX biogenic opal organic carbon sulfur pyrite ......4} $S euxinic condition
- 出版者（掲載誌）Faculty of Science, Kyushu University
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