암석학회지 (The Journal of the Petrological Society of Korea)

한국암석학회 (The Petrological Society of Korea)
권호 표지
DOI QR코드

DOI QR Code

제주도 탐라층의 구성광물

Mineral Composition of the Tamna Formation, Jeju Island

  • 현원학 (부산대학교 지질환경과학과) ;
  • 황진연 (부산대학교 지질환경과학과) ;
  • 이진현 (부산대학교 지질환경과학과) ;
  • 손병서 (부산대학교 지질환경과학과) ;
  • 오지호 (부산대학교 지질환경과학과) ;
  • 양경희 (부산대학교 지질환경과학과) ;
  • 김광희 (부산대학교 지질환경과학과)
  • Hyun, Weonhak (Department of Geological Sciences, Pusan National University) ;
  • Hwang, Jinyeon (Department of Geological Sciences, Pusan National University) ;
  • Lee, Jinhyun (Department of Geological Sciences, Pusan National University) ;
  • Son, Byeongseo (Department of Geological Sciences, Pusan National University) ;
  • Oh, Jiho (Department of Geological Sciences, Pusan National University) ;
  • Yang, Kyounghee (Department of Geological Sciences, Pusan National University) ;
  • Kim, Kwanghee (Department of Geological Sciences, Pusan National University)
  • 투고 : 2016.10.28
  • 심사 : 2016.12.21
  • 발행 : 2016.12.31
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

제주도의 전 지역에 걸쳐 넓게 분포하고 있는 하성 퇴적층인 탐라층은 역암, 사암, 이암 등으로 구성되어 있다. 대부분의 탐라층 이암 내에 다양한 크기의 석영이 다량 함유하는 것이 확인되었다. XRD 분석의 결과, 탐라층에는 석영, 사장석, 칼륨장석, 운모, 자철석, 적철석, 감람석, 휘석, 깁사이트, 방해석, 아날심, 그리고 점토광물로서 일라이트, 카올린나이트, 버미큘라이트, 스멕타이트, 녹니석, $10{\AA}$-할로이사이트 등의 다양한 광물들이 산출되었다. 석영이 많은 곳일수록 카올린나이트, 버미큘라이트, 녹니석의 함량이 많아지는 경향이 나타났다. 이상의 결과들로 보아 탐라층의 근원암은 제주도의 화산암에서 기원된 것만이 아니며, 석영을 다량 함유한 기반암이 포함된 것으로 사료된다. 따라서 탐라층은 이전에 존재했던 기반암과 함께 제주도 화산암류의 물질들이 첨가되어 퇴적된 후, 속성작용, 열수작용, 풍화작용 등의 변질작용을 받아 형성된 것으로 생각된다.

The fluvial Tamna Formation, consisting of conglomerate, sandstone and mudstone layers, is widely distributed in Jeiu Island. Various sizes of quartz crystals were identified from most of the Tamna Formation, including the mudstone layer. XRD analysis also shows that the mudstone layer is composed of various minerals, quartz, plagioclase, K-feldspar, mica, magnetite, hematite, olivine, amphibole, gibbsite, calcite, analcime and clay minerals such as illite, kaolinite, vermiculite, smectite, chlorite, $10{\AA}$-halloysite. There is a tendency showing that the more amount of kaolinite, vermiculite, and chlorite is present where the more amount of quartz crystals is present. It is likely that the main source materials contributing to the Tamna Formation were from the parental rocks containing abundant quartz grains, suggesting that the Tamna Formation could not be related to Jeju volcanic rocks, but possibly to pre-existing basement rocks. Thus, we propose that the Tamna Formation was formed from the materials derived from both pre-existing basement rocks and Jeju volcanic rocks, which were subsequently affected by diagenesis, hydrothermal alteration and weathering process.

키워드

참고문헌

  1. Agriculture Development Corporation (ADC), 1971, Report of the Ground water Resources, Jeju Island. 381 p, 1 map (1:100,000), 4 plates (in Korean, title translated).
  2. Ahn, K.S., Lee, H.K. and Lim, H.C., 1995, A petrological and geochemical study of granites in the Cheju Island. Economic and Environmental Geology, 28, 513-518 (in Korean with English abstract).
  3. Brenna, M., Cronin, S.J., Smith, I.E.M., Sohn, Y.K. and Maas, R., 2012, Spatio-temporal evolution of a dispersed magmatic system and its implications for volcanic growth, Jeju Island Volcanic Field, Korea. Lithos, 148, 337-352. https://doi.org/10.1016/j.lithos.2012.06.021
  4. Haraguchi, K., 1931, Saishu Volcano. Bulletin of the Geological Survey of Chosen (Korea), 10, 1-34, 10 pls. (in Japanese); 1-12, 1 pl. (in English).
  5. Hyun, W.H., Hwang, J.Y. and Yoon, S., 2005, On the occurrence of the fragments of quartz vein in the Tamna Formation, Jeju Island and their source area. Annual Conference of the Geological Society of Korea, (Abstracts), Jinju, October 28-29, 68 p (in Korean, title translated).
  6. Hwang, J.Y., Jang, M.I., Kim, J.S., Cho, W.M., Ahn, B.S. and Kang, S.W., 2000, Mineralogy and chemical composition of the residual soils (Hwangto) from south Korea. Journal of the Mineralogical Society of Korea. 13, 147-163 (in Korean with English abstract).
  7. Kim, K.H., Tanaka, T., Suzuki, K., Nagao, K. and Park, E.J., 2002, Evidences of the presence of old continental basement in Cheju Volcanic Island, South Korea. Geochemical Journal, 36, 421-441. https://doi.org/10.2343/geochemj.36.421
  8. Koh, G.W., Park, J.B., Kang, B.R., Kim, G.P. and Moon, D.C., 2013, Volcanism in Jeju Island. Journal of the Geological Society of Korea, 49, 209-230 (in Korean with English abstract).
  9. Park, K.H., Cho, D.L. and Kim, J.C., 2000a, Geologic Report of the Moseulpo-Hanlim sheet (1:50,000), Korea Institute of Geology, Mining and Materials, 56 p (in Korean with English abstract).
  10. Park, K.H., Lee, B.J., Cho, D.L., Kim, J.C., Lee, S.R., Choi, H.I., Hwang, J.H., Song, K.Y., Choi, P.Y., Cho, B.W. and Kim, Y.B., 1998, Geologic report of the Cheju-Aewol sheet (1:50,000). Cheju Provincial Government, 237 p (in Korean with English abstract).
  11. Park, K.H., Lee, B.J., Cho, D.L., Kim, J.C., Lee, S.R., Kim, Y.B., Lee, H.Y., Cho, B.W., Jang, Y.N., Son, B.K., Cheon, H.Y. and Kim, Y.U., 2000b, Geologic Report of the Seogwipo-Hahyori sheet (1:50,000). Jeju Provincial Government, 139 p (in Korean with English abstract).
  12. Sand, L.B. and Mumpton, F.A., 1978, Natural zeolites; occurrence, properties, uses. Pergamon press, 135-197.
  13. Smith, G.A. and Lowe, D.R., 1991, Lahars: Volcano-hydrologic events and deposition in the debris flow-hyperconcentrated flow continuum. In Fisher, R.V. and Smith, G.A. (eds.), Sedimentation in Volcanic Settings. Society of Economic Paleontologists and Mineralogists Special Publication 45, 59-70.
  14. Sudo, T. and Shimoda, S., 1978, Clays and clay minerals of Japan. Development of sedimentology, Vol. 26, Elsevier science publishing company, 189-219.
  15. Tamanyu, S., 1990, The K-Ar ages and their stratigraphic interpretation of the Cheju Volcanics, Korea. Bulletin of the Geological Survey of Japan, 41, 527-537 (in Japanese with English abstract).
  16. Won, J.K., Lee, M.W., Lee, D.Y. and Sohn, Y.K., 1993, Geologic report of the Seongsan sheet (1:50,000). Ministry of Construction, Jeju Provincial Government and Korea Water Resources Corporation, 104 p (in Korean).
  17. Won, J.K., Lee, M.W., Lee, D.Y. and Yun, S.H., 1995, Geologic report of the Pyoseon sheet (1:50,000). Ministry of Construction and Transportation and Korea Water Resources Corporation, 59 p (in Korean).
  18. Yoon, S., Jung, C.J., Hyun, W.H. and Song, S.T., 2014, Tectonic history of Jeju Island. Journal of the Geological Society of Korea. v. 50, no. 4, p. 457-474.
  19. Yoon, S., Jung, C.J., Song, S.T. and Yang, K.H., 2001, Volcanic debris-avalanche and epiclastic deposits in the Seongeup area, Jeju Island, Korea. Geosciences Journal, 5, 47-55. https://doi.org/10.1007/BF02910172
  20. Yoon, S., Jung, C.J., Song, S.T. and Hyun, W.H., 2002, Mt. Halla, the main body of Jeju Island, Korea: an uplifted edifice. Proceedings of International Symposium on New Concepts in Global Tectonics (NCGT), La Junta, Colorado, 165-170.
  21. Yoon, S., Koh, G. and Kim, I.T., 1995, Development history of Cheju Island. Bulletin of Cheju-do Provincial Government, 98, 148-164 (in Korean, title translated).
  22. Yun, S.G., Han, D.S. and Lee, D.Y., 1987, Quaternary geology in the southern part of Jeju Island. Research Report KR-86-2-(B)-2, Korea Institute of Energy and Resources, 64 p (in Korean with English summery).