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Geochemical Relationship Between Stream Sediments and Regional Geology of the Upstream for the Hahn River Drainage Basin, Korea.  

이연희 (한국시설안전기술공단 기초지반팀)
지정만 (인하대학교 지구환경공학)
오재경 (인하대학교 생물해양학부)
Publication Information
Economic and Environmental Geology / v.37, no.2, 2004 , pp. 153-171 More about this Journal
Abstract
This study was carried out to define the geochemical and mineralogical relationship between stream sediments and regional geology on upstream of Hahn river area. Geochemical characteristic including for major elements, trace elements and rare earth elements of the South and North Hahn river bed sediments are similar to those of acid igneous rocks which are distributed around both Hahn river basin. The chemical variation of major elements against SiO$_2$ and trace elements contents between South and North Hahn river bed sediments doesn't show the difference. REE patterns of both area show a distinct negative Eu anomaly, but total contents of rare earth elements are higher in North Hahn river sediments than South Hahn river sediments. The heavy minerals in the river bed sediments in this study area are identified as tremolite-actinolite, hematiteㆍmagnetite, common hornblende, ilmenite, garnet, epidote, rutile and sphene. In conclusion, it is elucidated that South and North Hahn river bed sediments are being originated from igneous rocks or metamorphic rocks which contains medium-high grade metamorphic minerals and components of originated from sedimentary rocks those of politic or calcareous rocks are eroded away as solution or suspended load.
Keywords
South and North Hahn river; rare earth elements; heavy mineral;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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