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題名 | Mineral-geochemical Association in Bottom Sediments of the East China Sea=東海海床沈積物礦物與地球化學之相關性 |
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作者 | Astakhov,Anatoly S.; Beloglazov,Alexander I.; Mozherovskiy,Anatoly V.; | 書刊名 | Terrestrial, Atmospheric and Oceanic Sciences |
卷期 | 6:1 1995.03[民84.03] |
頁次 | 頁91-102 |
分類號 | 351.983、351.983 |
關鍵詞 | 東海; 海床沈積物; 礦物; 地球化學; Geochemistry; Mineralogy; Bottom sediment; East China sea; |
語文 | 英文(English) |
英文摘要 | Geochemistry and mineralogy of grain-size fractions from Holocene sediments of the East China Sea and the adjacent regions have been investigated. The correlation between minerals and chemical element contents was determined for both sandy and clayey fractions. The averages contents of rockforming and some rare elements were found changing from coarse to fine fractions with the decrease in SiO �� and the increase in actually all other elements. In general, geochemical differences between coarses and fines fractions are equivalent to acidic and intermediate (or basic) igneous rock. Statistical cluster analysis for rock-forming and some rare elements in 1-5 μ m fractions revealed three zones having different sediment sources. The central zone occupied the whole outer East China Sea Shelf. Sediments (1-5 μ m fraction) supply sources for it are terrigenous discharge from Taiwan Island and the Philippine Archipelago. |
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