Econ. Environ. Geol. 2006; 39(6): 675-687

Published online December 31, 2006

© THE KOREAN SOCIETY OF ECONOMIC AND ENVIRONMENTAL GEOLOGY

Geochemical Characteristics of Stream Sediments Based on Bed Rocks in the Cheongpung Area

Young Seog Park1, Dae Woo Park1*, Jong Kyun Kim1, Young Sang Song2 and Jang Jon Lee3

1Dept. of Resource Engineering, Chosun University, Gwangju, 501-759, Korea
2School of Dentistry, Chonnam National University, Gwangju, 501-746, Korea
3National Research Institute of Cultural Heritage, Daejeon, 305-380, Korea

Correspondence to :

Dae Woo Park

ramese@nate.com

Received: June 13, 2006; Accepted: October 23, 2006

Abstract

The purpose of this study is to determine the geochemical characteristics of the stream sediments in the Cheongpung area. So that we can understand the natural background and predict the prospects of geochemical disaster, if any. We collected the stream sediments samples by wet sieving along the primary channels and slow dried the collected samples in the laboratory and ground them to pass a 200 mesh using an alumina mortar and pestle for chemical analysis. Mineralogical characteristics, major, trace and rare earth elements were determined by XRD, XRF, ICP-AES and NAA analysis methods. For geochemical characteristics on the geological group of stream sediments, the studied area was grouped into granitic gneiss area, metatectic gneiss area, Dado tuff area, Yuchi conglomerate area, and Neungju flow area in the Cheongpung area. Contents of major elements for the stream sediments in the Cheongpung area were SiO2
47.31~72.81 wt.%, Al2O3 11.26~21.88 wt.%, Fe2O3 2.83~8.39 wt.%, CaO 0.34~7.54 wt.%, MgO 0.55~3.59 wt.%, K2O 1.71~4.31 wt.%, Na2O 0.56~2.28 wt.%, TiO2 0.46~1.24 wt.%, MnO 0.04~0.27 wt.%, P2O5 0.02~0.45 wt.%. The contents of trace and rare earth elements for the stream sediments were Ba 700 ppm~8990 ppm, Be 1.0~3.50 ppm, Cu 6.20~60 ppm, Nb 12~28 ppm, Ni 4.4~61 ppm, Pb 13~34 ppm, Sr 65~787 ppm, V 4~98 ppm, Zr 32~164 ppm, Li 21~827 ppm, Co 3.68~65 ppm, Cr 16.7~409 ppm, Cs 2.72~ 37.1 ppm, Hf 4.99~49.2 ppm, Rb 71.9~649 ppm, Sb 0.16~5.03 ppm, Sc 4.97~52 ppm, Zn 26.3~375 ppm, Ce 60.6~373 ppm, Eu 0.82 ~6 ppm, Yb 0.71~10 ppm.

Keywords stream sediments, major & rare earth elements, geochemical characteristics, geological group, background

Article

Econ. Environ. Geol. 2006; 39(6): 675-687

Published online December 31, 2006

Copyright © THE KOREAN SOCIETY OF ECONOMIC AND ENVIRONMENTAL GEOLOGY.

Geochemical Characteristics of Stream Sediments Based on Bed Rocks in the Cheongpung Area

Young Seog Park1, Dae Woo Park1*, Jong Kyun Kim1, Young Sang Song2 and Jang Jon Lee3

1Dept. of Resource Engineering, Chosun University, Gwangju, 501-759, Korea
2School of Dentistry, Chonnam National University, Gwangju, 501-746, Korea
3National Research Institute of Cultural Heritage, Daejeon, 305-380, Korea

Correspondence to:

Dae Woo Park

ramese@nate.com

Received: June 13, 2006; Accepted: October 23, 2006

Abstract

The purpose of this study is to determine the geochemical characteristics of the stream sediments in the Cheongpung area. So that we can understand the natural background and predict the prospects of geochemical disaster, if any. We collected the stream sediments samples by wet sieving along the primary channels and slow dried the collected samples in the laboratory and ground them to pass a 200 mesh using an alumina mortar and pestle for chemical analysis. Mineralogical characteristics, major, trace and rare earth elements were determined by XRD, XRF, ICP-AES and NAA analysis methods. For geochemical characteristics on the geological group of stream sediments, the studied area was grouped into granitic gneiss area, metatectic gneiss area, Dado tuff area, Yuchi conglomerate area, and Neungju flow area in the Cheongpung area. Contents of major elements for the stream sediments in the Cheongpung area were SiO2
47.31~72.81 wt.%, Al2O3 11.26~21.88 wt.%, Fe2O3 2.83~8.39 wt.%, CaO 0.34~7.54 wt.%, MgO 0.55~3.59 wt.%, K2O 1.71~4.31 wt.%, Na2O 0.56~2.28 wt.%, TiO2 0.46~1.24 wt.%, MnO 0.04~0.27 wt.%, P2O5 0.02~0.45 wt.%. The contents of trace and rare earth elements for the stream sediments were Ba 700 ppm~8990 ppm, Be 1.0~3.50 ppm, Cu 6.20~60 ppm, Nb 12~28 ppm, Ni 4.4~61 ppm, Pb 13~34 ppm, Sr 65~787 ppm, V 4~98 ppm, Zr 32~164 ppm, Li 21~827 ppm, Co 3.68~65 ppm, Cr 16.7~409 ppm, Cs 2.72~ 37.1 ppm, Hf 4.99~49.2 ppm, Rb 71.9~649 ppm, Sb 0.16~5.03 ppm, Sc 4.97~52 ppm, Zn 26.3~375 ppm, Ce 60.6~373 ppm, Eu 0.82 ~6 ppm, Yb 0.71~10 ppm.

Keywords stream sediments, major & rare earth elements, geochemical characteristics, geological group, background

    KSEEG
    Jun 30, 2024 Vol.57 No.3, pp. 281~352

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