거창 분지와 가조 분지에 발달한 화강암 사질 풍화층의화학적 풍화 양상 - CIA분석을 중심으로
Chemical Weathering Characteristics and CIA of Granitic Grus Developed in Geochang and Gajo Basin, Korea
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초록
From the results of the CIA analysis (A-CN-K and A-CNK-FM ternary diagram), we concluded that granitic grus experienced low chemical alteration and contains plenty of sandy material The chemical alteration of Geochang and Gajo Basin advanced further than that of Yeongju-Bonghwa basin, but does not come to spatial differentiation as Chuncheon Basin. The weathered mantles of inner hills in the basin exhibit very weak alteration, and there is little spatial differentiation of chemical alteration between footslope of mountains, footslope hills. Most of hills are still in incipient weathering stage and have plenty of sandy materials. Therefore the chemical characteristics of granitic hills in Geochang and Gajo basin show that granitic weathered mantles are not saprolite formed by alteration but may be just grus (sandy weathered mantles).
Abstract
From the results of the CIA analysis (A-CN-K and A-CNK-FM ternary diagram), we concluded that granitic grus experienced low chemical alteration and contains plenty of sandy material The chemical alteration of Geochang and Gajo Basin advanced further than that of Yeongju-Bonghwa basin, but does not come to spatial differentiation as Chuncheon Basin. The weathered mantles of inner hills in the basin exhibit very weak alteration, and there is little spatial differentiation of chemical alteration between footslope of mountains, footslope hills. Most of hills are still in incipient weathering stage and have plenty of sandy materials. Therefore the chemical characteristics of granitic hills in Geochang and Gajo basin show that granitic weathered mantles are not saprolite formed by alteration but may be just grus (sandy weathered mantles).
참고문헌 (11)
- Crook, K. A. W., "Lithogenesis and geotectonics: The significance of compositional variation in flysch arenites(greywackes)", Journal of Society of Economical, Paleontological and Mineralogical Special Publications, 19, pp.304~310 (1974)
- 한미, "거창 일대에 분포하는 섬록암류와 화강암류에 대한 암석학적 연구", 암석학회지, 19(3), pp.167~180 (2010), 한국암석학회
- 황상일, "경남 거창분지 정장리 뢰스-고토양 연속층의 퇴적물 특성과 편년", 대한지리학회지, 46(1), pp.1~19 (2011), 대한지리학회
- 김영래, "한반도 남서부 영암의 화강암 구릉대 적색토의 화학적 풍화 특색", 대한지리학회지, 47(3), pp.315~327 (2012), 대한지리학회
- 김영래, "한반도 남서부 나주 일대 화강암 구릉대의 적색화와 화학적 풍화 경향", 한국지형학회지, 19(1), pp.57~68 (2012), 한국지형학회
- 김영래, "한반도 서부 황토현 일대 적색토의 화학적 풍화 경향", 한국지역지리학회지, 18(1), pp.17~26 (2012), 한국지역지리학회
- 김영래, "내성천 유역분지인 영주-봉화 분지 화강암 구릉대의 풍화 특색", 한국지형학회지, 21(4), pp.97~108 (2014), 한국지형학회[DOI]
- 김영래, "강원도 춘천 분지에 발달한 비적색 화강암 풍화층의 화학적 풍화 특색- CIA분석을 중심으로 -", 한국지형학회지, 23(2), pp.71~81 (2016), 한국지형학회[DOI]
- Nesbitt, H.W., "Early Proterozoic climates and plate motions inferred from major element chemistry of lutites", Nature, 199, pp.715~717 (1982)
- 박계헌, "영남육괴 함양, 거창 및 영주 화강암-화강섬록암의 스핀 U-Pb 연대Sphene U-Pb ages of the granite-granodiorites from Hamyang, Geochang and Yeongju areas of the Yeongnam Massif", 암석학회지, 15(1) (2006), 한국암석학회
- Son, M.W., "Landscape of erosional basin of Korea -in case of land-use changes of hills-", Journal of the Korean Association of Regional Geographers, 6(2), pp.83~96 (2000)