The Journal of the Petrological Society of Korea (암석학회지)

The Petrological Society of Korea (한국암석학회)
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SHRIMP U-Pb Ages of the Yongyudo biotite Granites

용유도 흑운모화강암의 SHRIMP U-Pb 연령

  • Kim, Dong-Yeon (Geological Research Division, Korea Institute of Geoscience and Mineral Resources) ;
  • Choi, Sung-Ja (Geological Research Division, Korea Institute of Geoscience and Mineral Resources)
  • 김동연 (한국지질자원연구원 국토지질연구본부) ;
  • 최성자 (한국지질자원연구원 국토지질연구본부)
  • Received : 2014.11.11
  • Accepted : 2014.12.05
  • Published : 2014.12.31
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Abstract

U-Pb ages were determined from the Yongyudo biotite granites from western parts of Gyeonggi massif. The results show that the emplacement age of the Yongyudo biotite granite is ca. 227-230 Ma. Such age result that is somewhat older than previous reported ages, suggesting further investigations for the timing and evolution of the Jurassic granites of the western Gyeonggi massif.

서부 경기육괴 용유도에 넓게 분포하는 조립질 흑운모 화강암에 대한 저어콘 U-Pb 연령측정을 실시하였다. 그 결과 기존에 알려진 쥬라기 연대보다 오래된 약 227~230 Ma의 트라이아스기 연령이 확인되었다. 따라서, 이 연령은 서부 경기육괴에 넓게 분포하는 화강암류의 시기와 성인에 대한 보다 정밀한 연구의 필요성을 제시한다.

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References

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