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Sedimentary Environments and Geochemical Characters of the Core Sediments Near Naju-Yeongam Area in the Lower Part of the Yeongsan River, Cheonnam, Korea

2001; Korean Earth Science Society; Volume: 22; Issue: 4 Linguagem: Inglês

2287-4518

Go-Yeo-Na Eun, Yeong-Koo Koh, Seok-Tai Youn, Kangho Oh, Dong-Ju Kim, Joo-Yong Kim,

Geochemistry and Geologic Mapping

To consider the vertical variations of sedimentary environments and geochemical characters in the core sediments in Naju-Yeongam area od the lower part of Yeongsan River, grain-size and metal components of the sediments were analyzed. The sediments are pebble to mud and show fining upward. The core sediments are poorly to very poorly sorted and positively skewed. On the basis of grain size distributions, the sediments of the study areas were thought to have been deposited in a meandering stream. The metallic contents of sediments were presumably controlled by carbonate contents of sediments and weakly controlled by fining upward grain size distribution pattern. Enrichment factors indicating metal concentration in the sediments did not suggest any meaningful concentrations for metallic elements.