한국 청원군 두루봉 흥수굴 퇴적층의 지질분석 연구
Geological Analysis of Heungsu Cave Deposits in Durubong, Cheongwon County, Korea
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참고문헌
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초록
동굴퇴적층 형성을 지배하는 요인은 1)석회암반 단열계 발달과 용식작용의 결과, 동굴확장, 2) 유수작용에 의한 동굴퇴적물의 유입 및 집적, 3)낙반석층 형성, 4)석회석 재침전작용 및 석회마루 형성을 흔히 들 수 있다. 본 연구는 두루봉 흥수굴입구에 분포하는 토양과 퇴적물에 대한 조직특성을 분석하여 동굴퇴적층의 형성과정을 규명하는데 있다. 조직연구 결과 두루봉 흥수굴 퇴적층은 주로 세립모래와 실트로 주로 구성되며, 실트입자들은 제5단면 단면의 옛사람이나 동굴동물들의 생활로 인한 기계적인 고화작용이나 교란작용을 받았던 것으로 추정된다. 두루봉 동굴 퇴적층의 제4층 형성시기 동안 동굴동물과 옛인류가 살았던 것으로 추정되며, 당시 기후 조건은 비교적 온난했으며, 퇴적물내 대자율 증가도 현저했다. 요컨데 두루봉 동굴퇴적층은 최종빙기최성기 동안 인위적 퇴적물은 암쇄물의 증가로 매몰되었던 것으로 추정된다.
Abstract
The cave deposits are commonly formed and controlled by four different processes ; 1) the enlargement of limestone cavities due to the dissolution of limestone along the discontinuities or fractures. 2)water-laid sedimentary transportation through the cavities. 3)rock-fallen debris accumulation, and finally 4) chemically precipitated calcium carbonates and limepan formations, animal or human tramplings. This paper deals with a soil/sedimentary materials distributed at the entrance of Heunsugul Caves of Durubong. A particular emphasis was put into an analysis of their textural characteristics in order to elucidate the soil-sedimentary formation process in Heungugul Caves. As results it shows that cave deposits are constituted by fine sands and silts mostly. It is presumed that the sediments were mechanically transformed into silty soils by the trampling, compaction and turbation processes of cave inhabitants in the upper parts of layers, particularly above layer V. It is inferred that the old humans or animals were inhabited in the caves during the period of layer Ⅳ accumulation. It is synchroneous with relatively warm stage and typified by the increasing of secondary magnetic materials. As a final stager of cave deposits antropogeic deposits were terminated due to active rock-fallen debris of the Last Glacial Maximum Period.
참고문헌 (10)
- 김주용, "한국 후기 구석기이후 세립질 토양 및 퇴적층의 형성환경", pp.14~17 (1999), 영남고고학회
- 김주용, "제3장 구낭굴의 입구퇴적층 형성환경, 단양구낭굴 유적Ⅱ(이융조 외 저)", pp.46~71 (1999), 충북대학교박물관
- 이융조, "중원지역의 구석기 유적", pp.13~74 (2005), 충북대학교박물관
- Kim, J. Y, "Quaternary geology and assessment of aggregate resources of Korea for the national industrial resources exploration and development", pp.87~100 (2001)
- Kim, J.Y, "A preliminary Result of Soil and Sediment Analysis in the Pit-E55S20 of Chongok Palaeolithic Site, Korea", pp.117~146 (2002), Yonchon County Administration, Korea
- Kim, J. Y, "A Research on Pleistocene Stratigraphy", 12, pp.77~87 (1998)
- Kim, J.Y, "Quaternary Formation, Environment and Chronology of Some Palaeolithic Sites of South Korea", 6, pp.165~180 (2002)
- "Review on the Quaternary Stratigraphy of the Korean Peninsula", pp.69~99 (1992)
- "Age dating and the orbital theory of the ice ages development of high resolution 0-300", 000 year chro(stratigraphy), pp.~29 (1987)
- "Oxygen isotope and paleomagnetic stratigraphy of Equatorial Pacific core V28-238 oxygen isotope temperature and ice volumes on a 100", pp.000 39~55 (1973)