대한지리학회지 (Journal of the Korean Geographical Society)

대한지리학회 (The Korean Geographical Society)
권호 표지

전북 완주군 봉동 하안단구 상부 뢰스-고토양 연속충의 풍화특성과 기원지

Weathering Properties and Provenance of Loess-Paleosol Sequence Deposited on River Terrace in the Bongdong Area, Wanju-gun, Jeonbuk Province

  • 황상일 (경북대학교 지리학과) ;
  • 박충선 (경희대학교 지리학과) ;
  • 윤순옥 (경희대학교 지리학과 및 기초과학연구소)
  • Hwang, Sang-Ill (Department of Geography, Kyungpook National University) ;
  • Park, Chung-Sun (Department of Geography, Kyunghee University) ;
  • Yoon, Soon-Ock (Department of Geography and Research Institute for Basic Sciences, Kyunghee University)
  • 발행 : 2009.09.30
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

전라북도 완주군 봉동읍에 위치한 만경강 하안단구 역층 상부에 퇴적되어 있는 뢰스-고토양 연속층을 대상으로 토양분석과 대자율 측정, 입도 및 원소분석을 행하여 퇴적물의 풍화 특성과 기원지를 검토하였다. 봉동단면은 상부에서 하부로 Layer 1(고토양), Layer 2(뢰스), Layer 3(고토양) 그리고 하안단구 역층으로 이루어진다. 대자율은 뢰스층과 고토양층 사이에 뚜렷한 차이를 보이며, 입도분석 결과는 봉동단면이 하천이나 사면이동이 아니라 바람에 의해 운반되었으며, 중국 뢰스고원이나 대천뢰스보다 상당히 세립질임을 보여준다. 토양분석 중 유기물 함량만이 대자율과 유사한 변화를 보이며, 건조 토색보다는 습윤 토색이 뢰스-고토양 연속층의 특성을 보다 잘 반영한다. 주원소 및 희토류 원소 분석 결과, 봉동단면의 뢰스물질은 중국 뢰스고원과 동일한 기원지 또는 재이동된 물질에 의해 형성되었으며, 퇴적 이후에는 고온다습한 우리나라 기후 환경에서 중국 뢰스고원보다 심하게 풍화작용을 받았다.

The weathering properties and provenance of loess-paleosol sequence deposited on gravel layer of river terrace in Bongdong-eup, Wangju-gun, Jeonbuk Province are examined using soil analysis, magnetic susceptibility measurement, grain size and element analysis. The Bongdong section consists of, from top to bottom, Layer 1(paleosol), Layer 2(loess), Layer 3(paleosol) and the gravel layer of river terrace. The magnetic susceptibility values show the systematic variations in the sequence and the results of grain size analysis reveal that the sequence was deposited by not fluvial or slope process, but eolian process, and that contains finer materials than the Daecheon loess and Chinese Loess Plateau. Among the results of soil analysis, organic contents indicate systematic variations similar to the magnetic susceptibility. The wet soil colors further reflect the characteristics of the sequence rather than the dry soil colors. Based on the analytical results of major and rare earth elements, the eolian materials contained in the sequence were deposited by the materials originated from the areas where the Chinese Loess Plateau has been originated or the reworked materials from the Chinese Loess Plateau, and after the depositions, the materials experienced the intensive chemical weathering under the humid-warm climatic conditions in the Korean Peninsula.

키워드

참고문헌

  1. 권종택,지정만,장윤호, 1999, '한반도 서해안 변산지역의 연안퇴적물과 육상지질과의 지화학적 상관관계,'한국자원공학회지, 36, 42-66
  2. 권혁재, 1975, '호남평야의 충적지형에 관한 지리학적 연구,'지리학, 12, 1-20
  3. 박동원, 1985, '김제,정읍 일대에 분포하는 뢰스상 적황색토에 대한 연구,'지리학, 32, 1-10
  4. 박충선, 2006, 서해안 대천, 봉동, 부안지역의 뢰스-고토양층서와 편년, 경희대학교 석사학위논문
  5. 박충선,윤순옥,황상일, 2007,' 전북 부안 화강암지역 뢰스-고토양 연속층의 퇴적물 특성과 기원지,'대한지리학회지, 42(6), 898-913
  6. 박희두, 2005,'만경강과 동진강 유역의 습지 분석,'한국지형학회지, 12, 1-12
  7. 신재봉,유강민, Naruse, T., Hayashida, A., 2004, '전곡리 구석기 유적 발굴지인 E55S20-Ⅳ 지점의 미고결 퇴적층에 대한 뢰스-고토양 층서에 관한 고찰,'지질학회지, 40, 369-381
  8. 신재봉,Naruse, T.,유강민, 2005,' 뢰스-고토양 퇴적층을 이용한 홍천강 중류에 발달한 하안단구의 형성시기,'지질학회지, 41, 323-333
  9. 오건환, 1980a,'한반도 동,서해안 중부에 분포하는 해성단구면의 대비,'부산여대 논문집, 8, 157-170
  10. 오건환, 1980b,'한반도의 해성단구와 제4기 지각변동,'부산여대 논문집, 9, 377-415
  11. 오경섭,김남신, 1994,' 전곡리 용암대지 피복물의 형성과 변화과정,'제4기학회지, 8, 43-68
  12. 오경섭,오선희, 1994, '금강과 만경강 역과 모래의 비교연구', 한국지형학회지, 1, 103-124
  13. 윤순옥,박충선,황상일, Naruse, T., 2007,' 대천지역 뢰스-고토양 연속층의 풍화특성,'지질학회지, 43,281-296
  14. 이용일,이선복, 2002, '용인시 평창리 구석기유적발굴지고토양 특성과 이의 고고지질학적 적용,'지질학회지, 38, 471-489
  15. 조화룡, 1985, 한국의 충적평야, 교학연구사, 서울
  16. 최성길, 1996,' 웅천천유역의 하성단구로부터 추정되는 구정선고도와 그 의의,'대한지리학회지, 31(3), 613-629
  17. 최성길, 1998,' 충남 서해안에 있어서 제4기 지형발달과정의 연구를 위한 기준시간면 설정에 관한 시론적 연구,'한국지형학회지, 5, 21-40
  18. 최성길, 2003, '충남 보령 웅천천유역 후기경신세 하성단구의 종단면 특성 고찰; 매몰곡저의 종단면을 중심으로,'한국지형학회지, 10, 87-92
  19. 홍만섭,김영원, 1969, 한국 지질도 삼례도폭(1:50,000) 및 설명서, 국립지질조사소
  20. Chen, J., An, Z., Liu, L., Ji, J., Yang, J., and Chen, Y.,2001, Variations in chemical compositions of the eolian dust in Chinese Loess Plateau over the past 2.5 Ma and chemical weathering in the Asian inland, Science in China (Series D), 44,403-413 https://doi.org/10.1007/BF02909779
  21. Chen, J., Ji, J., and Qiu, G., 1998, Geochemical studies on the intensity of chemical weathering in Luochuan loess-paleosol sequence, China, Science in China (Series D), 41, 235-241 https://doi.org/10.1007/BF02973110
  22. Folk, R. L. and Ward, W. C., 1957, Brazos River bar: a study in the significance of grain size parameters, Journal of Sedimentary Petrology,27, 3-26 https://doi.org/10.1306/74D70646-2B21-11D7-8648000102C1865D
  23. Gallet, S., Jahn, B., and Torii, M., 1996, Geochemical characterization of the Luochuan loess-paleosol sequence, China, and paleoclimatic implications, Chemical Geology, 133, 67-88 https://doi.org/10.1016/S0009-2541(96)00070-8
  24. Gallet, S., Jahn, B., Lanoe, B. V. V., Dia, A., and Rossello, E., 1998, Loess geochemistry and its implications for particle origin and composition of the upper continental crust, Earth and Planetary Science Letters, 156, 157-177 https://doi.org/10.1016/S0012-821X(97)00218-5
  25. Hofmann, A., Bolhar, R., Dirks, P., and Jelsma, H., 2003, The geochemistry of Archaean shales derived from a mafic volcanic sequence, Belingwe greenstone belt, Zimbabwe: provenance, source area unroofing and submarine versus subaerial weathering, Geochimica et Cosmochimica Acta, 67, 421-440 https://doi.org/10.1016/S0016-7037(02)01086-4
  26. Jahn, B., Gallet, S., and Han, J., 2001, Geochemistry of the Xining, Xifeng and Jixian sections, Loess Plateau of China: eolian dust provenance and paleosol evolution during the last 140 ka,Chemical Geology, 178, 71-94 https://doi.org/10.1016/S0009-2541(00)00430-7
  27. Li, F., Jin, Z., Xie, C., Feng, J., Wang, L., and Yang, Y.,2007, Roles of sorting and chemical weathering in the geochemistry and magnetic susceptibility of Xiashu loess, East China, Journal of Asian Earth Sciences, 29, 813-822 https://doi.org/10.1016/j.jseaes.2005.05.011
  28. Liu, T. S., 1985, Loess in China, China Ocean Press, Beijing
  29. Lu, H., Vandenberghe, J., and An, Z., 2001, Aeolian origin and palaeoclimatic implications of the 'Red Clay' (north China) as evidenced by grainsize distribution, Journal of Quaternary Science, 16, 89-97 https://doi.org/10.1002/1099-1417(200101)16:1<89::AID-JQS578>3.0.CO;2-8
  30. Masuda, A., Nakamura, N., and Tanaka, T., 1973, Fine structure of mutually normalized rare-earth patterns of chondrites, Geochimica et Cosmochimica Acta, 37, 239-248 https://doi.org/10.1016/0016-7037(73)90131-2
  31. Masuda, A., 1975, Abundance of mono isotopic REE, consistent with the Leedey chondritic values, Geochemical Journal, 9, 183-184 https://doi.org/10.2343/geochemj.9.183
  32. McLennan, S. M., 1993, Weathering and global denudation, The Journal of Geology, 101, 295-303 https://doi.org/10.1086/648222
  33. Nesbitt, H. W., Markovics, G., and Price, R. C., 1980, Chemical processes affecting alkalis and alkaline earths during continental weathering, Geochimica et Cosmochimica Acta, 44, 1659-1666 https://doi.org/10.1016/0016-7037(80)90218-5
  34. Nesbitt, H. W. and Young, G. M., 1984, Prediction of some weathering trends of plutonic and volcanic rocks based on thermodynamic and kinetic considerations, Geochimica et Cosmochimica Acta, 48, 1523-1534 https://doi.org/10.1016/0016-7037(84)90408-3
  35. Nesbitt, H. W. and Young, G. M., 1989, Formation and diagenesis of 584 weathering profiles, The Journal of Geology, 97, 129-147 https://doi.org/10.1086/629290
  36. Pye, K., 1995, The nature, origin and accumulation of loess, Quaternary Science Review, 15, 653-667
  37. Roddaz, M., Viers, J., Brusset, S., Baby, P., Boucayrand, C., and Herail, G., 2006, Controls on weathering and provenance in the Amazonian foreland basin: Insights from major and trace element geochemistry of Neogene Amazonian sediments, Chemical Geology, 226, 31-65 https://doi.org/10.1016/j.chemgeo.2005.08.010
  38. Rollinson, H. R., 1993, Using Geochemical Data:Evaluation, Presentation, Interpretation, Longman, England
  39. Shin, J. B., 2003, Loess-Paleosol Stratigraphy of Dukso and Hongcheon Areas and Correlation with Chinese Loess-Paleosol Stratigraphy: Application of Quaternary Loess-Paleosol Stratigraphy to the Chongokni Paleolithic Site, Ph. D. dissertation, University of Yeonsei
  40. Taylor, S. R. and McLennan, S. M., 1985, The Continental Crust: Its Composition and Evolution, Geoscience Texts, Blackwell, Oxford, London
  41. Tsoar, H. and Pye, K., 1987, Dust transport and the question of desert loess formation,Sedimentology, 34, 139-153 https://doi.org/10.1111/j.1365-3091.1987.tb00566.x
  42. Uvari, G., Varga, A. and Balogh-Brunstad, Z., 2008, Origin, weathering, and geochemical composition of loess southwestern Hungary, Quaternary Research, 69, 421-437 https://doi.org/10.1016/j.yqres.2008.02.001
  43. Yang, S. and Ding, Z., 2008, Advance-retreat history of the East-Asian summer monsoon rainfall belt over northern China during the last two glacialinterglacial cycles, Earth and Planetary Science Letters, 274, 499-510 https://doi.org/10.1016/j.epsl.2008.08.001
  44. Yang, X., Liu, Y., Li, C., Song, Y., Zhu, H., and Jin, X., 2007, Rare earth elements of aeolian deposits in Northern China and their implications for determining the provenance of dust storms in Beijing, Geomorphology, 87, 365-377 https://doi.org/10.1016/j.geomorph.2006.10.004
  45. Yu, K. M., Shin, J. B., and Naruse, T., 2008, Loesspaleosol stratigraphy of Dukso area, Namyangju City, Korea (South), Quaternary International, 176-177, 96-103 https://doi.org/10.1016/j.quaint.2007.05.007
  46. Zhang, Q., Zhu, C., Jiang, T., and Becker, S., 2005, Mid-Pleistocene environmental reconstruction based on Xiashu loess deposits in the Yangtze Delta,China, Quaternary International, 135, 131-137 https://doi.org/10.1016/j.quaint.2004.10.028
  47. http://www.wamis.go.kr
  48. http://www.designdb.com