하안단구 퇴적층의 지구화학적 특성과 기원지 - 단양천, 금천 유역을 대상으로 -
Geochemical Properties and Source Areas of Fluvial Terrace Deposits – A Case Study in Danyang and Geum River Basins –
0
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
This study tries to reveal source areas of fluvial terrace deposits in Danyang and Geum River basins located in the northern and southern parts of the Sobaek Mountains, respectively, through geochemistry. The samples analyzed in this study show different grain size properties and can be grouped into the coarse, medium and fine samples. Grain size properties suggest that the coarse samples are typically fluvial deposits and geochemistry from the coarse samples is also similar to that from the bedrocks within the basins. The fine samples show geochemical properties different from the bedrocks and similar to loess deposits in Korea. However, different geochemical concentrations among the fine samples can be also recognized, indicating mixtures of loess materials with weathering products of the bedrocks. One sample among the medium samples is considered as fluvial deposit due to geochemical similarity to the bedrocks, while geochemistry from another sample among the medium samples indicates that loess materials were mixed with more abundant weathering products of the bedrocks than those in the fine samples.
Abstract
This study tries to reveal source areas of fluvial terrace deposits in Danyang and Geum River basins located in the northern and southern parts of the Sobaek Mountains, respectively, through geochemistry. The samples analyzed in this study show different grain size properties and can be grouped into the coarse, medium and fine samples. Grain size properties suggest that the coarse samples are typically fluvial deposits and geochemistry from the coarse samples is also similar to that from the bedrocks within the basins. The fine samples show geochemical properties different from the bedrocks and similar to loess deposits in Korea. However, different geochemical concentrations among the fine samples can be also recognized, indicating mixtures of loess materials with weathering products of the bedrocks. One sample among the medium samples is considered as fluvial deposit due to geochemical similarity to the bedrocks, while geochemistry from another sample among the medium samples indicates that loess materials were mixed with more abundant weathering products of the bedrocks than those in the fine samples.
참고문헌 (27)
- 채승철, "포항 조사리 해빈의 형성 과정과 계절적 변화", 한국지형학회지, 21(1), pp.121~131 (2014), 한국지형학회[DOI]
- Cheong, C. S, "Tectonomagmatism, -metamorphism, and -mineralization of the central Ogcheon belt, Korea (I): Sr, Nd and Pb isotopic systematics and geochemistry of granitic rocks in the Boeun area", Journal of the Geological Society of Korea, 32(1), pp.91~116 (1996)
- 조영동, "소백산맥 북부 영동영서 하천의 하각과 지형 발달", 한국지형학회지, 24(2), pp.27~40 (2017), 한국지형학회
- Condie, K. C, "The Cr", Th ratio in Precambrian pelites from the Kaapvaal Craton as an index of craton evolution, 1990, pp.97, 256~267
- Cullers, R. L, "Geochemistry of the Mesoproterozoic Lakhanda shales in southeastern Yakutia, Russia: implications for mineralogical and provenance control, and recycling", recambrian Research, 104, pp.77~93 (2000)
- Fedo, C. M, "Unraveling the effects of potassium metasomatism in sedimentary rocks and paleosols, with implications for paleoweathering conditions and provenance", Geology, 23, pp.921~924 (1995)
- 황상일, "경남 거창분지 정장리 뢰스-고토양 연속층의 퇴적물 특성과 편년", 대한지리학회지, 46(1), pp.1~19 (2011), 대한지리학회
- 황상일, "전북 완주군 봉동 하안단구 상부 뢰스-고토양 연속층의 풍화특성과 기원지", 대한지리학회지, 44(4), pp.463~480 (2009), 대한지리학회
- Hwang, S. I, "Origin and weathering properties of loess-paleosol sequence in the Goseong area on the east coast of South Korea", Quaternary International, 344, pp.17~31 (2014)
- KIGAM (Korea Institute of Geoscience and Mineral Resources), "Explanatory note of the Andong sheet (1:250,000)" (1996), KIGAM
- 김남훈, "영남(소백산)육괴 북동부 평해지역 화강편마암류의 SHRIMP U-Pb 저콘 연대", 암석학회지, 18(1), pp.31~47 (2009), 한국암석학회
- 김영래, "화학적 풍화지수(CIA)로 본 한반도 중남부 화강암류의 화학적 풍화 경향성", 한국지형학회지, 18(3), pp.53~64 (2011), 한국지형학회
- 김영래, "한반도 남서부 나주 일대 화강암 구릉대의 적색화와 화학적 풍화 경향", 한국지형학회지, 19(1), pp.57~68 (2012), 한국지형학회
- 이민부, "추가령 열곡 연천 고호소층의 퇴적물 기원지 분석", 대한지리학회지, 42(1), pp.15~26 (2007), 대한지리학회
- 이승구, "희토류원소를 이용한 순창지역 섬진강 수계내 하상퇴적물의 기원지 연구", 지질학회지, 39(1), pp.81~97 (2003), 대한지질학회
- 이승구, "이천지역 하상퇴적물의 입도별 지구화학특성을 이용한 기원지 규명", 지질학회지, 40(4), pp.409~429 (2004), 대한지질학회
- McLennan, S. M, "Weathering and global denudation", The Journal of Geology, 101, pp.295~303 (1993)
- Nesbitt, H. W, "Prediction of some weathering trends of plutonic and volcanic rocks based on thermodynamic and kinetic considerations", Geochimica et Cosmochimica Acta, 48, pp.1523~1534 (1984)
- Nesbitt, H. W, "Formation and diagenesis of weathering profiles", The Journal of Geology, 97, pp.129~147 (1989)
- 박충선, "전북 부안 화강암지역 뢰스-고토양 연속층의 퇴적물 특성과 기원지", 대한지리학회지, 42(6), pp.898~913 (2007), 대한지리학회
- 박충선, "강릉시 불화산 일대 뢰스 퇴적층의 형성 과정과 퇴적 환경", 한국지형학회지, 21(3), pp.49~61 (2014), 한국지형학회[DOI]
- 박충선, "강릉시 불화산 일대 뢰스 퇴적층의 지구화학적 특성", 한국지형학회지, 22(4), pp.63~80 (2015), 한국지형학회[DOI]
- Rollinson, H. R, "Using Geochemical data: Evaluation, presentation, interpretation" (1993), Longman Scientific &Technical
- Taylor, S. R, "The continental crust: its composition and evolution" (1985), Blackwell Scientific Publications
- 윤순옥, "대천지역 뢰스-고토양 연속층의 풍화특성", 지질학회지, 43(3), pp.281~296 (2007), 대한지질학회
- 윤순옥, "충남 서산 해미지역 뢰스-고토양 연속층의 지구화학적 특성", 지질학회지, 47(4), pp.343~362 (2011), 대한지질학회
- 윤순옥, "진천분지 뢰스-고토양 연속층의 형성과 퇴적 환경", 한국지형학회지, 20(3), pp.1~14 (2013), 한국지형학회