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Quantification of Granite Deformation of Pocheon-Gisanri Area Using Wavy Extinction of Quartz Grain  

정원석 (충북대학교 자연과학대학 지구환경과학과)
윤현수 (한국지질자원연구원 지질연구부)
나기창 (충북대학교 자연과학대학 지구환경과학과)
Publication Information
The Journal of the Petrological Society of Korea / v.12, no.3, 2003 , pp. 101-109 More about this Journal
Abstract
The wavy extinction of quartz can be used as a standard indicator showing the degree of rock deformation. In determine the degree of rock deformation, the intensity of wavy extinction (IWE) of quartz was measured using polarizing microscope, digital camera, and NIH Image program. This method was applied to the granite of Pocheon-Gisanri area, which are divided three type; biotite granite (Gb), garnet biotite granite (Ggb) and two mica granite (Gtm). In this study, measurement of wavy extinction was proceeded Ggb in eastern part and Gb in western part based on the Pocheoneup. The result was that Gb shows low deformation degree below D2, and Ggb represents high deformation degree above D3, generally showing that increasing deformation degree from northwest to southeast in the studied area. It is suggested that the fault which penetrated Ggb in 1/250,000 geological map affected the deformation degree of Ggb.
Keywords
NIH Image; IWE; NIH Image; Gb; Ggb; Fault;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
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