RISS 학술연구정보서비스

검색
다국어 입력

http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.

변환된 중국어를 복사하여 사용하시면 됩니다.

예시)
  • 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
  • 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
닫기
    인기검색어 순위 펼치기

    RISS 인기검색어

      검색결과 좁혀 보기

      선택해제

      오늘 본 자료

      • 오늘 본 자료가 없습니다.
      더보기
      • 무료
      • 기관 내 무료
      • 유료
      • KCI등재

        Geochronological and geochemical constraints on the ore-related granites in Huanggang deposit, Southern Great Xing’an Range, NE China and its tectonic significance

        Wei Mei,Xinbiao Lü,Zhi Liu,Rankun Tang,Zhilong Ai,Xiangdong Wang,Mamady Cisse 한국지질과학협의회 2015 Geosciences Journal Vol.19 No.1

        Huanggang skarn Fe-Sn deposit is located in themain ridge Sn-polymetallic metallogenic sub-belt of the SouthernGreat Xing’an Range. A combination of zircon U-Pb age, geochemistryand Hf isotopic composition are reported for the orerelatedgranite (K-feldspar granite) of the Huanggang deposit toconstrain its petrogenesis and tectonic setting. LA-ICP-MS U-PbZircon dating results indicate that the K-feldspar granite wasintruded at 145.3 ± 1.6Ma. The K-feldspar granites belong to high-K calc-alkaline and shoshonite series, mainly peraluminous. Theserocks have a negative slope from La to Lu with strongly negativeEu anomalies, they demonstrate negative Ba, Sr P, Ti and Nbspikes and positive Th, U, Nd spikes on the normalized incompatibleelement diagrams. The regional geological setting togetherwith the geochemistry of the K-feldspar granite indicates that it isformed in a post-orogenic setting. The zircon Hf isotopic compositions(εHf(t): +5.2 to +6.6, 176Hf/177Hf: 0.282837‒0.282876) indicateboth juvenile crust sources that originated from depleted mantleand some ancient continental crust sources contributed to its origin,and there is a significant addition of juvenile crust under theSouthern Great Xing’an Range during the time from Paleo-Neoproterozoicto Phanerozoic.

      연관 검색어 추천

      이 검색어로 많이 본 자료

      활용도 높은 자료

      해외이동버튼