한국지구과학회지 (Journal of the Korean earth science society)

  • 제38권7호
  • /
  • Pages.546-551
  • /
  • 2017
  • /
  • 1225-6692(pISSN)
  • /
  • 2287-4518(eISSN)
한국지구과학회 (The Korean Earth Science Society)
권호 표지
DOI QR코드

DOI QR Code

백두산과 규슈 흑요석 내 미세결정의 형태와 조직

Morphology and Texture of Microlites in the Baekdusan and Kyushu Obsidians

  • 황가현 (경상대학교 지질과학과 및 기초과학연구소) ;
  • 좌용주 (경상대학교 지질과학과 및 기초과학연구소)
  • Hwang, Ga-hyun (Department of Geology and Research Institute of Natural Sciences, Gyeongsang National University) ;
  • Jwa, Yong-Joo (Department of Geology and Research Institute of Natural Sciences, Gyeongsang National University)
  • 투고 : 2017.11.29
  • 심사 : 2017.12.18
  • 발행 : 2017.12.31
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

백두산과 일본 규슈에서 산출되는 흑요석을 대상으로 그 내부에 포함된 미세결정의 형태와 조직을 전자현미경을 사용하여 관찰하였다. 미세결정에 대한 형태학적 분류에 따르면, 백두산 흑요석 내의 미세결정은 Arculites, Asteroidal, Crenulite 등의 형태만 보이고, 규슈 흑요석 내의 미세결정은 Arculites, Bacillite, Belonites, Crenulite, Furculite, Lath, Margarite, Scopulites 등의 다양한 형태를 보인다. 이 사실은 백두산과 규슈 흑요석은 포함된 미세결정의 형태에 따라서 구분 가능함을 지시한다. 한편, 동일한 Arculites 형태의 미세결정의 경우 백두산 흑요석은 휘석 결정 내에 자철석의 결정들이 포함된 포이킬리틱 조직을 보이는 반면, 규슈 흑요석은 자철석과 휘석이 서로 입상 내지 입간 조직을 보인다. 이러한 흑요석 내 미세결정의 형태 및 조직의 차이는 향후 우리나라에서 선사시대 유물로 출토되는 흑요석제 석기의 산지를 밝히는데 이용될 수 있다.

We examine the morphology and texture of microlites included in the obsidians from the Baekdusan (Mt. Baekdu) and Kyushu (SW Japan) by using an electron microscope. According to the morphological types of microlites, the microlites in the Baekdusan obsidians are classified as Arculites, Asteroidal and Crenulite, whereas those in the Kyushu obsidians as various types of Arculites, Bacillite, Belonites, Crenulite, Furculite, Lath, Margarite, and Scopulites. Specifically, the Arculites in both obsidians show very distinctive crystal relationships, though they are mainly composed of magnetite and pyroxene. The Baekdusan Arculites exhibit the poikilitic texture of pyroxene crystals enclosing multiple magnetite crystals, whereas the Kyushu ones demonstrate the granular and/or intergranular texture of interlocking between magnetite and pyroxene crystals. This distinction can be used to discriminate the provenance of the obsidian artefacts from the prehistoric sites in the Korean Peninsula.

키워드

참고문헌

  1. Bates, R.L. and Jackson, J.A. (eds.), 1987, Glossary of Geology (3rd ed.). American Geological Institute, Alexandria, Virginia. 455 p.
  2. Cho, N.C., Kang, H.T., and Han, M.S., 2005, Characterization of the Sangmuryongri obsidian artefacts based on chemical composition and texture. Journal of Korean Ancient Historical Society, 49, 5-26 (in Korean with English abstract).
  3. Cho, N.C., Kang, H.T., and Chung, K.Y., 2006, Provenance study of obsidian artifacts found in the Korean peninsula based on trace elements and Sr isotope ratios. Journal of Korean Ancient Historical Society, 53, 5-21 (in Korean with English abstract).
  4. Cho, N.C. and Choi, S.Y., 2010, Provenance study of obsidian from Gigok paleolithic site in Donghae-si using trace elements. Journal of Korean Ancient Historical Society, 70, 5-20 (in Korean with English abstract).
  5. Cho, N.C. and Choi, S.Y., 2012, Chemical composition and provenance study of obsidian from Sangsa-ri paleolithic site in Cheolwon. Journal of Korean Ancient Historical Society, 78, 5-21 (in Korean with English abstract).
  6. Clark, D.L., 1961, The Obsidian Dating Method. Current Anthropology 2, 111-114 https://doi.org/10.1086/200172
  7. Donaldson, C.H., 1976, An Experimental Investigation of Olivine Morphology. Contributions to Mineralogy and Petrology, 57, 187-213 https://doi.org/10.1007/BF00405225
  8. Hibbard, M.J., 1995, Petrography to petrogenesis. Prentice-Hall, Inc. 587 p.
  9. Jang, Y.D., Park, T.Y., Lee, S.M., and Kim, J.J., 2007, Petrologic and mineralogic studies on the origin of Paleolithic obsidian implements from Wolseongdong, Korea. Journal of the Korean Earth Science Society, 28, 731-740 (in Korean with English abstract).
  10. Jin, M.E., Moon, S.W., Ryu, C.K., and Jwa, Y.J., 2014, Mineralogical Study on Microlites in the Baekdusan Obsidian and the Gadeokdo Obsidian Artefacts. Journal of Mineralogical Society of Korea, 27, 243-249 (in Korean with English abstract). https://doi.org/10.9727/jmsk.2014.27.4.243
  11. Kim, J.C., Kim, D.K., Youn, M., Yun, C.C., Park, G., Woo, H.J., Hong, M.Y., and Lee, G.K., 2007, PIXE provenancing obsidian artefacts from Paleolithic sites in Korea. Indo-Pacific Prehistory Association Bulletin, 27, 122-128.
  12. Ross, C.S., 1962, Microlites in glassy volcanic rocks. American Mineralogist, 47, 723-740.
  13. Trivedi, R. and Somboonsuk, K. 1984, Constrained Dendritic Growth and Spacing. Materials Science and Engineering, 65, 65-74. https://doi.org/10.1016/0025-5416(84)90200-3
  14. Weinberg, F. and Chalmers, B., 1952, Further observations on dendritic growth in metals. Canadian Journal of Physics, 30, 488-502. https://doi.org/10.1139/p52-047
  15. Williams, G.H., 1893, On the use of the terms poikilitic and micropoikilitic in petrography, The Journal of Geology, 1(2), 176-179. https://doi.org/10.1086/606174
  16. Yi, S. and Lee, Y.I., 1996, Preliminary consideration on the geochemical characteristics of the obsidian artefacts. Journal of the Korean Archaeological Society, 35, 172-187.

피인용 문헌

  1. Detailed Morphology and Texture of Microlites in Obsidian observed through Electron Microscopy vol.39, pp.6, 2018, https://doi.org/10.5467/JKESS.2018.39.6.568