한국광물학회지 (Journal of the Mineralogical Society of Korea)

  • 제32권1호
  • /
  • Pages.15-39
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  • 2019
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  • 1225-309X(pISSN)
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  • 2288-7172(eISSN)
한국광물학회 (The Mineralogical Society of Korea)
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안동 초염기성암 복합체 내 페리도타이트의 암석지화학과 석면 산출 특성

Petrochemistry of the Peridotites within an Andong Ultramafic Complex and Characteristics of Asbestos Occurrences

  • 송석환 (중부대학교 토목공학과)
  • Song, Suckhwan (Department of Civil Engineering, Joongbu University)
  • 투고 : 2018.12.27
  • 심사 : 2019.03.07
  • 발행 : 2019.03.31
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초록

안동 지역에 하나의 초염기성암 복합체가 격리된 안구상 형태로 산출된다. 이 초염기성암 복합체는 초염기성암에서 염기성암이며, 대부분은 페리도타이트이다. 이 복합체는 수 km로 동북동 방향으로 안동 단층을 따라 신장되어 있다. 이 연구는 안동 초염기성암 복합체 중 페리도타이트에 대한 암석지화학과 이곳에서 산출되는 석면의 특징에 대해서이다. 이 페리도타이트는 화성기원으로, 레조라이트에서 웨를라이트이고 높은 포스테라이트 조성의 감람석과 마그네슘 비의 단사휘석, 트레몰라이트에서 체마카이트질 조성의 각섬석을 포함한다. 지화학적으로 이들 암석은 높은 마그네슘비, 전이원소 함량과 낮은 알칼리 원소 함량을 보인다. 이 페리도타이트는 백석면, 트레몰라이트 및 악티노라이트 석면을 포함하나, 후자가 우세하다. 이들 각섬석계 석면은 소 단층면, 수 cm에서 십 cm 폭의 벽개, 단구에서 미끄럼 및 경사 섬유로써 산출이 되고, 백석면들은 수 mm~cm 폭의 맥 및 벽개에서 교차 및 미끄럼 섬유로서 산출이 된다. 이들 결과들은 PLM, XRD, SEM 결과로서 확인이 된다. 전체적인 안동 초염기성암 복합체 중 초염기성암의 특징과 석면의 산출 양상은 각각 전 세계의 알파인형 초염기성암과 충남 지역의 사문암화된 초염기성암의 특성과 유사하다.

An ultramafic complex occurs as an isolated lenticular body in the Andong area. The Andong ultramafic complex comprises ultramafic and mafic rocks, but mainly peridotites. The complex extends for several kilometer to ENE direction, adjacent to the Andong fault line. This study is for petrochemistry of the peridotites within the ultramafic complex and characteristics of asbestos occurrences. The peridotites are igneous origin, ranging from lherzolite to wehrlites and are characterized by high Fo olivine ($Fo_{0.85-0.87}$), Mg clinopyroxene ($Mg_{87.5-93.5}$), and tremolitic to tschermakitic hornblende. Geochemically, these rocks show high magnesium number (mainly Mg = 85.3-87.38) and transitional element and low alkali element contents. The peridotites host asbestos, including chrysotile, tremolite and actinolite asbestos, but dominated by amphibole asbestos. The amphibole asbestos are found along small fault face, and cleavage and fracture showing several cm to ten cm in width as slip and oblique fibers, while the chryostiles occur at cleavage and vein showing several mm-cm in width as cross and slip fibers. They are confirmed by PLM, XRD and SEM results. Overall characteristics of peridotites from the Andong ultramafic complex and occurrences of the asbestos are similar to those of worldwide orogenic related Alpine type ultramafic rocks and serpentinized ultramafic bodies in Chungnam, Korea, respectively.

키워드

참고문헌

  1. Bodinier, J.L. (1988) Geochemistry and petrogenesis of the Lanzo peridotite body, western Alps. Tectonophy., 149, 67-88. https://doi.org/10.1016/0040-1951(88)90119-9
  2. Bodinier, J.L. and Godard, M. (2003) Orogenic, ophiolitic, and abyssal peridotites. Treatise on Geochemistry, 2, 103-170.
  3. Churchill, R.K. and Hill, R.L. (2000) A general location guide for ultramafic rocks in California - Areas more likely to contain naturally occurring asbestos, 2000, map scale 1:1,100,000. California Department of Conversation, Division of Mines and Geology Open-File Report 2000-19.
  4. Churchill, R.K., Higgins, C.T., and Hill, B. (2000) Areas more likely to contain natural occurrences of asbestos in western El Dorado County, California. State of California Department of Conservation, Division of Mines and Geology, Open-File Report 2000-002.
  5. Clinkenbeard, J.P., Churchill, R.K., and Lee, K. (2002) Guidelines for geologic investigations of naturally occurring asbestos in California. California Geological Survey Public Information Offices, Special Publication, 124p.
  6. Dymek, R.F., Brothers, S.C., and Schiffries, C.M. (1988) Petrogenesis of ultramafic metamorphic rocks from 3800 Ma Isua supracrustal belt, western Greenland. J. Petrol., 29, 1353-1397. https://doi.org/10.1093/petrology/29.6.1353
  7. Girardeau, J. and Mercier, J.C.C. (1988) Petrology and texture of the ultramafic rocks of the Xigaze ophiolite (Tibet): Constraints for mantle structure beneath slow-spreading ridges. Tectonophy., 147, 33-58. https://doi.org/10.1016/0040-1951(88)90146-1
  8. Griffin, W.L., O'Reilly S.Y., and Stabel, A. (1988) Mantle metasomatism beneath western Victora, Australia: II. Isotopic geochemistry of Cr-diopside lherzolites and Al-augite pyroxenite. Geochim. Cosmochim. Acta, 52, 449-460. https://doi.org/10.1016/0016-7037(88)90100-7
  9. Harper, M. (2008) 10th anniversary critical review: Naturally occurring asbestos. J. Environ. Monitoring., 10, 1394-1408. https://doi.org/10.1039/b810541n
  10. Hess, H.H. (1955) Serpentines, orogeny and epiogeny. In Polervaart, A., (ed.), Crust of the Earth. Geol. Soci. Amer. Spec. Pap., 62, 391-407.
  11. Higgins, C.T. and Clinkenbeard, J.P. (2006) Relative likelihood for the presence of naturally occurring asbestos in Placer County, California. California Geological Survey Special Report, 190, 45p.
  12. Hwang, J.Y., Kim, J.J., and Ock, S.S. (1993) Genesis and mineralogy of the serpentinite deposits in the Andong area Korea. Journal of the Korean Institute of Mining Geology, 26, 1-10.
  13. Jeong, G.Y., Lee, S.R., and Kwon, S.K. (2012) Phlogopite-bearing orthopyroxenite in Andong ultramafic complex. J. Miner. Soc. Korea, 25, 249-261. https://doi.org/10.9727/jmsk.2012.25.4.249
  14. Jeong, G.Y. and Choi, J.B. (2012) Morphological diversity of tremolite-actinolite series amphiboles with implications to the evaluation of naturally occurring asbestos. J. Miner. Soc. Korea, 25, 95-104. https://doi.org/10.9727/jmsk.2012.25.2.095
  15. Kang, J.H. and Lee, D.S. (2008) Geological structure around Andong fault system, Pungcheon-myeon, Andong, Korea. J. Petrol. Soc. Korea, 17, 83-94.
  16. Kim, B.K., Lee H.Y., Kim, S.J., and Cheong, J.G. (1988) Geological report of the Andong sheet. 1:50000. Korea Institute of Energy and Resources.
  17. Kim, K.H., Park, J.K., Yang, J.M., and Yoshida, N. (1990) Petrogenesis of the carbonate and serpentinite rocks from the Ulsan iron mine. J. Geol. Soc. Korea, 26, 407-417.
  18. Kim, K.H., Park, J.K., Yang, J.M., and Satake, H. (1993) A study on serpentinization of serpentinites from the Ulsan iron mine. J. Korean. Inst. Mining. Geol., 26. 267-278.
  19. Lee, C.H. and Kim, S.S. (1963) Explanatory text of the geological map of Hongseong sheet. Geological Survey of Korea.
  20. Lee. R.J., Strohmeier, B.R., Bunker, K.L., and Van Orden, D.R. (2008) Naturally occurring asbestos - A recurring public polocy challenge. J. Hazardous Materials, 153, 1-21. https://doi.org/10.1016/j.jhazmat.2007.11.079
  21. McDonough, W.F. (1990) Constraints on the composition of the continental lithospheric mantle. Earth Planet. Sci. Lett., 101, 1-18. https://doi.org/10.1016/0012-821X(90)90119-I
  22. Mevel, C., Canat, M., Gente, P., Marion, E., Auzende, J.M., and Karson, J.A. (1991) Emplacement of deep crustal and mantle rocks on the West median valley, Wall of the mark area (MAR), $23^{\circ}N$. Tectonophy., 190, 31-53. https://doi.org/10.1016/0040-1951(91)90353-T
  23. Moores, E.M. and Jackson, E.D. (1974) Ophiolites and oceanic crust. Nature, 250, 136-138. https://doi.org/10.1038/250136a0
  24. Moores, E.M. and MacGregor, I.E. (1972) Types of alpine ultramafic rocks and their implications for fossil plate interactions. In Shagam, R. et al. (ed.), Studies in Earth and Space Sciences. Geol. Soc. Amer. Memor., 132, 209-223. https://doi.org/10.1130/MEM132-p209
  25. Nicolas, A. (1989) Structures of ophiolites and dynamics of oceanic lithosphere. Kluwer Academic, Dordrecht, 379p.
  26. O'Reilly, S.Y. and Griffin, W.L. (1988) Mantle metasomatism beneath western Victoria, Australia: I. Metasomatic processes in Cr-diopside lherzolites. Geochim. Cosmochim. Acta, 52, 433-447. https://doi.org/10.1016/0016-7037(88)90099-3
  27. Paktung, A.D. (1984) Metamorphism of the ultramafic rocks of the Thompson mine, Thompson nickel belt, Northern Manitovia. Canadian Miner., 22, 77-91.
  28. Park, B.J. and Lee, J.Y. (1995) A geochemical study on genesis os Ulsan serpentine deposits. J. Korean Earth Sciences Society, 16, 9-19.
  29. Perkins, R.L. and Harvey, B.W. (1993) Test method. Method for the determination of asbestos in bulk building materials. (Test Method). Environmental Protection Agency, Office of Research and Development, EPA/600/R-93/116.
  30. Raymond, L.A. (1995) Metamorphic Petrology, Wm. C. Brown Publishers, 656-675p.
  31. Raymond, L.A. (2002) The Study of Igneous, Sedimentary, and Metamorphic Rocks. McGraw-Hill Higher Companies Inc., New York, 720p.
  32. Song, S.H. and Song, Y.S. (2001) Mineralogy and geochemistry of ultramafic rocks from the Singok area, western part of Chungnam. Econ. Environ. Geol., 34, 395-415.
  33. Song, S.H., Choi, S.G., and Woo, J.G. (1997) Genetic implications of ultramafic rocks from the Bibong area in the Kyeonggi gneiss complex. Econ. Environ. Geol., 30, 477-491.
  34. Song, S.H., Lim, H.J., and Lee, W.S. (2013) Genetic differences of two asbestos mines, Boryoung area. Econ. Environ. Geol., 46, 165-178. https://doi.org/10.9719/EEG.2013.46.2.165
  35. Song, S.H., Hwang, J.H., Hwang, B.G., and Kim, H.W. (2008) Occurrence types and mineralogical characteristics of asbestos for the Kwangcheon area, Chungnam. Korean Industrial Hygiene Association, 18, 271-281.
  36. Streckeisen, A. (1976) To each plutonic rock its proper name. Earth-Science Reviews, 12, 1-33. https://doi.org/10.1016/0012-8252(76)90052-0
  37. Sun, S.S. and McDonough, W.F. (1989) Chemical and isotopic systematics of oceanic basalts: Implications for mantle composition and processes. In Saunders, A. D. and Norry, M.J. (ed.), Magmatism in the Ocean Basins. Geol. Soc. Spec. Publ., 42, 313-345. https://doi.org/10.1144/GSL.SP.1989.042.01.19
  38. Wee, S.M., Choi, S.G., and So, C.G. (1994) Preliminary study on ultramafic rocks from the Chungnam province. Korea. Econ. Environ. Geol., 27, 171-180.
  39. Whattam, S.A., Cho, M., and Smith, I.E.M. (2011) Magmatic peridotites and pyroxenites, Andong ultramafic complex, Korea: Geochemical evidence for supra-subduction zone formation and extensive melt-llrock interaction. Lithos, 127, 599-618. https://doi.org/10.1016/j.lithos.2011.06.013
  40. Whittaker, E.J.W. and Wicks, F.J. (1970) Chemical differences among the serpentine "polymorphys"; A discussion. Amer. Miner., 55, 1025-1047.
  41. Woo, Y.K., Choi, S.W., and Park, K.H. (1991) Genesis of talc ore deposits in the Yesan area of Chungnam, Korea. J. Korean. Inst. Mining. Geol., 24, 363-378.
  42. Yoon, K.T., Hwang J., Oh, J.H., and Lee, H.M. (2010) Characteristics of tremolite asbestos from abandoned asbestos mines in Boryeong area, Chungnam. J. Miner. Soc. Korea, 23, 73-84.
  43. Yun, S.K., Cha, M.S., Kim, J.J., and Lee, J.D. (1988) Geological report of the Yecheon sheet. 1:50000. Korea Institute of Energy and Resources.
  44. Yun, S.P., Moon, H.S., and Song Y.G. (1994) Mineralogy and genesis of the Pyoungan and Daeheung talc deposits in ultramafic rocks, the Yoogoo area. Econ. Environ. Geol., 27, 131-145.