암석학회지 (The Journal of the Petrological Society of Korea)

한국암석학회 (The Petrological Society of Korea)
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영주화강암과 안동 화강암의 인회석 Sr 동위원소 조성: 두 암체의 동위원소적 구분과 경계의 위치

Sr Isotopic Composition of Apatite from the Yeongju and Andong Granites: Isotopic Distinction between the Two Granites and Location of the Boundary

  • 윤리나 (문화재청 천연기념물센터) ;
  • 이승구 (한국지질자원연구원 국토지질연구본부) ;
  • 박계헌 (부경대학교 환경해양대학 지구환경과학과) ;
  • 송용선 (부경대학교 환경해양대학 지구환경과학과)
  • Yoon, Rina (Natural Heritage Center, Cultural Heritage Administration of Korea) ;
  • Lee, Seung-Gu (Geological Research Division, Korean Institute of Geoscience and Mineral Resources) ;
  • Park, Kye-Hun (Department of Earth Environmental Sciences, Pukyong National University) ;
  • Song, Yong-Sun (Department of Earth Environmental Sciences, Pukyong National University)
  • 투고 : 2016.03.10
  • 심사 : 2016.03.26
  • 발행 : 2016.03.31
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초록

영남육괴의 북동부에 위치하는 영주화강암과 안동화강암은 동일한 시기에 정치하였지만 서로 다른 Sr 동위원소 초기치를 갖는다. 하지만 기존의 여러 연구에서 두 저반을 구분하는 경계를 서로 다르게 표시하고 있다. 이 중에서 어떤 경계가 합당한지를 확인하기 위하여 이 지역의 화강암들로부터 인회석을 분리하여 Sr 동위원소 조성을 분석하였으며, 분석 결과를 토대로 두 암체의 경계를 제안한다.

Yeongju and Andong granites, located in the northeastern Yeongnam massif, reveal very similar emplacement ages but distinct initial isotopic compositions of strontium. However, previous studies used different boundaries to distinguish these batholiths. In this study, we determined Sr isotopic compositions of apatite separated from the granites of the area to find out the proper boundary and propose the location of such boundary based upon analysis.

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참고문헌

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