강원도 춘천 분지에 발달한 비적색 화강암 풍화층의 화학적 풍화 특색- CIA분석을 중심으로 -
Chemical Weathering Characteristics and CIA of Granitic Grus developed in Chuncheon Basin, Korea
0
조회
0
다운로드
6
인용
0
참고문헌
키워드
초록
According to the result obtained by the CIA analysis(A-CN-K and A-CNK-FM ternary diagram), the chemical weathering of granitic grus in Chuncheon basin is too weak, thus calcium and sodium may not be dissolved sufficiently, but go as far as to be more progress than that of Yeongju-Bonghwa basin, Jeongeup, Nonsan and Namwon, common granitic grus in Korean Peninsula. Therefore the chemical characteristics of granitic hills in Chuncheon basin show that granitic weathered mantles are not saprolite formed by alteration while this may be true for guns(sandy weathered mantles). The weathered mantles of inner hills in the basin is slightly altered, footslope of mountains are more altered, and footslope hills are undergone some alteration. But their alteration doesn’t show any advances to saprolite, and most of them are still in incipient weathering stage.
Abstract
According to the result obtained by the CIA analysis(A-CN-K and A-CNK-FM ternary diagram), the chemical weathering of granitic grus in Chuncheon basin is too weak, thus calcium and sodium may not be dissolved sufficiently, but go as far as to be more progress than that of Yeongju-Bonghwa basin, Jeongeup, Nonsan and Namwon, common granitic grus in Korean Peninsula. Therefore the chemical characteristics of granitic hills in Chuncheon basin show that granitic weathered mantles are not saprolite formed by alteration while this may be true for guns(sandy weathered mantles). The weathered mantles of inner hills in the basin is slightly altered, footslope of mountains are more altered, and footslope hills are undergone some alteration. But their alteration doesn’t show any advances to saprolite, and most of them are still in incipient weathering stage.
참고문헌 (9)
- Cox, R., "The influence of sediment recycling and basement composition on evolution of mudrock chemistry in the southwestern United States", Geochimica et Cosmochimica Acta, 59(14), pp.2919~2940 (1995)
- Jang, J.H., "Granite Erosional Landform in Korea" (2002), Sungshin Women’s University Press
- 김영래, "화학적 풍화지수(CIA)로 본 한반도 중남부 화강암류의 화학적 풍화 경향성", 한국지형학회지, 18(3), pp.53~64 (2011), 한국지형학회
- 김영래, "내성천 유역분지인 영주-봉화 분지 화강암 구릉대의 풍화 특색", 한국지형학회지, 21(4), pp.97~108 (2014), 한국지형학회[DOI]
- 김영래, "한반도 남부의 화강암 구릉대 지표피복물의 풍화 특색", 한국지형학회지, 19(4), pp.123~137 (2012), 한국지형학회
- Migon, P, "Grus weathering mantles - problems of interpretation", Catena, 49, pp.5~24 (2002)
- Nesbitt, H.W., "Early Proterozoic climates and plate motions inferred from major element chemistry of lutites", Nature, 199, pp.715~717 (1982)
- Park, J.D., "Variations of physical properties of rocks subject to artificial weathering", Master, pp.2004
- Potter, P.E., "Sedimentology of Shale" (1980), Springer-Verlag