Journal of the Korean earth science society (한국지구과학회지)

The Korean Earth Science Society (한국지구과학회)
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Geology and Stromatolite Fossil Localities of Socheong Island, Korea: An Introductory Review

소청도의 지질과 스트로마톨라이트 화석 산지

  • Kim, Jeong-Yul (Department of Earth Science Education, Korea National University of Education) ;
  • Han, Sung-Hee (Department of Earth Science Education, Korea National University of Education)
  • 김정률 (한국교원대학교 지구과학교육과) ;
  • 한성희 (한국교원대학교 지구과학교육과)
  • Received : 2009.11.30
  • Accepted : 2010.01.22
  • Published : 2010.02.26
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Abstract

Geology and stromatolite fossil localities of Socheong Island are reviewed on the basis of previous studies and recent field survey. A new fossil locality of stromatolites which are very well preserved is recognized in Bunam area, northeast of Socheong Island. An outcrop composed of sandstone and shale alternations which exhibit well-developed laminations and folds is also found in the east of the Socheong harbor, and it is regarded as one of the symbolic features of the geology in Socheong Island. Stromatolite fossil localities of Socheong Island contains diverse and well-preserved Late Proterozoic stromatolites which are correlated with those from the Mukchon and Myoraksan series of the Sangwon System and diverse sedimentary structures such as ripple marks, desiccation cracks, and raindrop imprints. Stromatolites of Socheong Island, the oldest fossil Natural Monument of Korea, should be preserved at the national level, and continued intensive research must be conducted.

기존 연구 결과와 최근의 야외 지질 조사를 통하여 소청도의 지질 개요와 스트로마톨라이트 화석 산지의 보존 상태를 간단히 소개한다. 분암 지역에서 보존 상태가 매우 양호한 새로운 스트로마톨라이트 화석 산지를 확인하였다. 또한 선착장 부근에서 평행 엽층과 습곡 구조가 발달한 지층의 노두를 발견하였는 바, 이는 소청도의 관문에 위치한 소청도의 중요 지질학적 상징 중의 하나로서 가치가 있는 것으로 생각된다. 소청도의 스트로마톨라이트 화석 산지는 다양하고 보존 상태가 양호하며 상원계의 묵천통과 멸악산통에 대비되는 후기 원생대의 스트로마톨라이트 화석 뿐만 아니라 물결 자국, 건열, 빗방울 자국 등의 다양한 퇴적 구조를 포함하고 있다. 소청도의 스트로마톨라이트 화석은 우리나라에서 가장 오래된 화석 천연기념물로서 정밀한 학술 조사가 이루어져야 하며, 국가적인 보존 관리 되어야 한다.

Keywords

References

  1. 이성주, 공달용, 2004, 경상남도 남해지역 진주층에 분포하는 막대기형 스트로마톨라이트. 대한지질학회지, 40, 13-26.
  2. Choi, H.I., 1981, Depositionl environments of the Sindong Group in the southwestern part of the Gyeongsang Basin. Ph. D. thesis, Seoul National University, 144 p.
  3. Choi, S.J. and Woo, K.S., 1993, Depositionl environments of the Ordovician Yeongheung Formation near Marchari area, Yeongheung, Kangweondo, Korea. Journal of the Geological Society of Korea, 29, 375-386.
  4. Chun, H.Y., Choi, H.I., Son, J.D., Oh, J.K., Kwak, Y.H., Shin, S.C., and Yun, H.S., 1990, Geological and geochemical studies on the Gyeongsang Supergroup in the Gyeongsang Basin. Korea Institute of Energy and Resources, 124 p.
  5. Donaldson, J.A., 1976, Aphebian stromatolites in Canada: Implications for stromatolite zonation. In Walter, M.R. (ed.), Stromatolites. Developments in Sedimentology 20, Elsevier Scientific Publishing Company, Amsterdam, 371-380.
  6. Harland, W.B., Armstrong, R.L., Cox, A.V., Craig, L.E., Smith, A.G., and Smith, D.G., 1990, A geologic time scale 1989. Cambridge University Press, Cambirdge, 263 p.
  7. Kim, J.Y., Kim, K.S., and Kim, T.S., 1999, Raindrop imprints from the Late Proterozoic Sangwon System of the Sochong Island of Ongjin-gun, Incheon, Korea. Journal of the Korean Earth Science Society, 20, 55-60.
  8. Kim, J.Y. and Kim, T.S., 1999, Occurrence and geological significance of stromatolites from the Precambrian strata in the Socheong Island, Incheon, Korea. Journal of the Korean Earth Science Society, 20, 115-125.
  9. Kobayashi, T., 1997, Our knoweledge from past to present on the geological history of Korea. Journal of Earth Sciencs, 86, 46-62.
  10. Krylov, I.N. and Semikhatov, M.A., 1976, Table of time ranges of the principal groups of Precambrian stromatolites. In Walter, M.R. (ed.), Stromatolites, Developments in Sedimentology 20. Elsevier Scientifis Publishing Company, Amsterdam, 693-694.
  11. Lee, K.C. and Paik, K.H., 1988, Occurrence of Cretaceous stromatolites in the Kyongsang Basin, Korea. Journal of the Paleontological Society of Korea, 4, 119-134.
  12. Lee, K.C., Woo, K.S., Paik, K.H., and Choi, S.J., 1991, Depositional environments and diagenetic history of the Panyawol, Hwasan, and Shinyangdong Formations, Kyongsang Supergroup, Korea with emphasis on carbonate rocks. Journal of the Geological Society of Korea, 27, 471-492.
  13. Liang, Y., Zhu, S., Zhang, L., Cao, R., and Bu, D., 1985, Stromatolite assemblages of the late Precambrian in China. Precambrian Research, 29, 15-32. https://doi.org/10.1016/0301-9268(85)90056-7
  14. Paek, R.J., Ri, S.R., Kim, S.J. and Im, M.G., 1996, A geological map of Korea (1:1,000,000). The Institute of Gelogy, State Academy of Science, DPR of Korea.
  15. Paik, I.S., 1985, Evaporate mineral casts in the Maggol Formation (Ordovician), Jangseong, Kangweondo. Journal of the Geological Society of Korea, 21, 219-226.
  16. Paik, I.S., 1986, Depositional environments of the Maggol Formation (Middle Ordovician) in Jangseong area, Gangweondo, Korea. Ph. D. thesis, Seoul National University, 101 p.
  17. Paik, I.S., Woo, K.S., and Chung, G.S., 1991, Stratigraphic, sedimentologic and paleontologic investigation of the Paleozoic sedimentary rocks in Yeongweol and Gabsan areas: Depositional environments of the Lower Ordovician Mungok Formation in the vicinity of Yeongweol. Journal of the Geological Society of Korea, 27, 357-370.
  18. Pak, M.H., 1986, On stromatolite fossils found in the Sangwon System of the Sangwon-Yonsan region. Geology and Geography, 4, 14-20.
  19. Preiss, W.V., 1976, Interconitinental correlations. In Walter, M.R. (ed.), Stromatolites. Developments in Sedimentology 20. Elsevier Scientific Publishing Company, Amsterdam, 359-370.
  20. Ri, S.R. and Om, H.Y., 1996, Middle-Upper Proterozoic Era. In Paek, R.J., Kang, H.S., and Jon, G.P. (eds.), Gelogy of Korea, Foreign Languages Books Publishing House. Pyongyang, DPR of Korea, 52-79.
  21. Semikhatov, M.A., 1976, Experience in stromatolite studies in the U.S.S.R. In Walter, M.R. (ed.), Stromatolites. Developments in Sedimentology 20, Elsevier Scientific Publishing Company, Amsterdam, 337-357.
  22. Um, S.H., Choi, H.I., Son, J.D., Oh, J.H., Kwak, Y.H., Shin, S.C., and Yun, H.S., 1983, Geological and geochemical studies on the Gyeongsang Supergroup in the Gyeongsang Basin. Korea Institute of Energy Resources Bulletin, 36, 124 p.

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