한반도 동해안의 모래해안 발달과 암석 분포 사이의 상관성
The Relation between Sandy Shore Distribution and Basic Rock in the East Coast of the Korean Peninsula
1
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
The distribution and size of sandy beaches along eastern Korea has a close relationship with the presence of granite rocks. In general, elongated and wide beaches with abundant sands are likely to develop along the coasts where granitic basic rocks comprise the dominant geology or where a large amount of sands are supplied by streams from inland granitic rocks. Small sandy beaches, in contrast, appear in non-granitic rocks (i.e., under sedimentary and/or metamorphic geology). Hence, large beaches are observed continuously along the shore of Gangwon-do, of which coasts consist predominantly of granitic geology. Such continuity declines from Samcheok city to Pohang city. The rock of Gyeonbuk-do is commonly known as sedimentary, deposited between the late Triassic and the early Tertiary Periods. Because few sands are supplied from the upstream areas, sandy beaches unlikely develop along the coasts of the province, only showing a sporadic, discontinuous distribution under Bulguksa granite, granitic gneiss, and some volcanic rocks. Erosion was rarely observed in the beaches where granitic rocks are distributed, whereas merely five beaches seemed to have undergone some level of erosion in non-granitic regions. This is presumably because a larger amount of sands than that which had been eroded away was replenished in areas under granitic geology, while under non-granitic geology having a deficit in sands, no large sandy beaches had formed at first.
Abstract
The distribution and size of sandy beaches along eastern Korea has a close relationship with the presence of granite rocks. In general, elongated and wide beaches with abundant sands are likely to develop along the coasts where granitic basic rocks comprise the dominant geology or where a large amount of sands are supplied by streams from inland granitic rocks. Small sandy beaches, in contrast, appear in non-granitic rocks (i.e., under sedimentary and/or metamorphic geology). Hence, large beaches are observed continuously along the shore of Gangwon-do, of which coasts consist predominantly of granitic geology. Such continuity declines from Samcheok city to Pohang city. The rock of Gyeonbuk-do is commonly known as sedimentary, deposited between the late Triassic and the early Tertiary Periods. Because few sands are supplied from the upstream areas, sandy beaches unlikely develop along the coasts of the province, only showing a sporadic, discontinuous distribution under Bulguksa granite, granitic gneiss, and some volcanic rocks. Erosion was rarely observed in the beaches where granitic rocks are distributed, whereas merely five beaches seemed to have undergone some level of erosion in non-granitic regions. This is presumably because a larger amount of sands than that which had been eroded away was replenished in areas under granitic geology, while under non-granitic geology having a deficit in sands, no large sandy beaches had formed at first.
참고문헌 (18)
- Birot, P., "Usure climique des versants cristallins - l’enseignement des experiance de laboratoire", Centre de Geomorphologie de Caen, Bull, pp.183~192 (1972)
- Bustin, R. M., "Selective weathering of granitic clasts", Canadian Journal of Earth Sciences, 18, pp.215~223 (1979)
- Choi, S. G., "Geomorphological characteristics of the cpastal plain in Maegbang-ri, Eastern coast of Korea", Journal of the Korean Geographical Society, 36, pp.1~12 (1987)
- Gerrard, J., "Weathering of granitic rocks: environment and clay mineral formation, Rock Rock Weathering and Landform Evolution", pp.3~20 (1994), Wiley
- Godard, A., "Pays et Paysages du Granite: introduction à une géographie des domaines granitiques", pp.232~ (1977), Presses University de France
- 강윤구, "속초 영랑해안 해빈침식대책 인공구조물 건설에 기인하는 해안선 변화", 한국해양환경•에너지학회지, 13(4), pp.296~304 (2010), 한국해양환경·에너지학회
- Kee, K. D., "Morpho-pedologic milieu in Taegwallyong area", Ph. D., pp.1999
- 김백운, "항공사진을 이용한 방포항 인근 해빈의 장기간 해안선 변화 분석", 대한원격탐사학회지, 29(5), pp.477~486 (2013), 대한원격탐사학회
- 김대식, "동해안 해안선과 해빈의 계절적 변화", 대한지리학회지, 50(2), pp.147~164 (2015), 대한지리학회
- 김인호, "거진항 일대의 해안 침식 현황 조사 연구", 한국측량학회지, 30(1), pp.67~73 (2012), 한국측량학회
- 김규한, "동해안 중소어항 인근 해안침식 방지대책", 한국해안·해양공학회논문집, 14(4), pp.247~256 (2002), 한국해안,해양공학회
- 기근도, "불암산의 지형 경관과 기후지형학적 특색", 한국지형학회지, 14(1), pp.87~103 (2007), 한국지형학회
- 김영래, "내성천 유역분지인 영주-봉화 분지 화강암 구릉대의 풍화 특색", 한국지형학회지, 21(4), pp.97~108 (2014), 한국지형학회[DOI]
- 김영래, "한반도 중남부 내륙 분지에 발달한 화강암 사질풍화층의 화학적 풍화 특색", 한국지형학회지, 22(2), pp.27~40 (2015), 한국지형학회[DOI]
- 이종석, "자연 친화형 해안 침식방지 구조물의 안정성", 한국콘텐츠학회 논문지, 7(9), pp.212~219 (2007), 한국콘텐츠학회
- Migon´, P., "Granite Landscape of the World", pp.384~ (2006), Oxford University Press
- Migon´, P., "Grus weathering mantles-problems of interpretation", Catena, 49, pp.5~24 (2002)
- 유형석, "전촌-나정해안의 해안침식 원인분석", 한국해안·해양공학회논문집, 20(6), pp.611~620 (2008), 한국해안,해양공학회