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Occurrence of fine chlorite (<0.2 µm) and its significance in the soils from the Ulsan area, Korea

Published online by Cambridge University Press:  09 July 2018

S. J. Yeo ,
S. J. Kim  and
D. C. Bain
S. J. Yeo
Affiliation:
Department of Geological Sciences, Seoul National University, Seoul 151-742, Korea
S. J. Kim
Affiliation:
Department of Geological Sciences, Seoul National University, Seoul 151-742, Korea
D. C. Bain
Affiliation:
Macaulay Land Use Research Institute, Craigiebuckler, Aberdeen AB15 8QH, UK
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Abstract

Well crystallized chlorite has been detected in a Typic Hapludult developed on quartz porphyry at Ulsan, Korea, after treatment of the <0.2 µm fraction with a high-gradient magnetic separation (HGMS) technique. The X-ray diffraction (XRD) characteristics of the chlorite suggest that it is an Fe-rich variety and this was confirmed by energy dispersive spectroscopy (EDS) analysis. The chlorite could not be detected with certainty in the <0.2 µm fraction but is clearly present throughout the soil profile in the <0.2 µm fraction. It is suggested that this chlorite is residual inherited chlorite, the rest of which has dissolved in the acidic environment (pH 4—5).

Type
Research Article
Information
Clay Minerals , Volume 34 , Issue 4 , December 1999 , pp. 533 - 541
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1999

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