Volume 25 Issue S1
May  2019
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Article Navigation >  Journal of Geomechanics  > 2019  >  25(S1): 49-52
XIONG Shuangcai, LI Guang, ZHANG Zhengfeng, 2019. LATE CARBONIFEROUS TECTONIC REGIME TRANSITION IN EAST JUNGGAR: EVIDENCE FROM A2-TYPE RHYOLITE. Journal of Geomechanics, 25 (S1): 49-52. DOI: 10.12090/j.issn.1006-6616.2019.25.S1.009
Citation: XIONG Shuangcai, LI Guang, ZHANG Zhengfeng, 2019. LATE CARBONIFEROUS TECTONIC REGIME TRANSITION IN EAST JUNGGAR: EVIDENCE FROM A2-TYPE RHYOLITE. Journal of Geomechanics, 25 (S1): 49-52. DOI: 10.12090/j.issn.1006-6616.2019.25.S1.009
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LATE CARBONIFEROUS TECTONIC REGIME TRANSITION IN EAST JUNGGAR: EVIDENCE FROM A2-TYPE RHYOLITE

doi: 10.12090/j.issn.1006-6616.2019.25.S1.009

  • No.1 Geological Party, Xinjiang Bureau of Geology and Mineral Resources, Changji 831100, Xinjiang, China

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  • Published: 2019-05-01
    Abstract
  • Laoyemiao area is located in east of east Junggar, known as the important tectonic metallogenic belt of the Central Asian Orogenic Belt. Laoyemiao rhyolite is similar to the typical A-type granite, and the genetic type belongs to A2-type rhyolite, which is produced in post-collision environment. Zircon U-Pb dating shows that it was formed at (311.6±3.1)Ma in the Late Carboniferous. Based on the data and regional geological features, Laoyemiao area has been planted into the Siberian plate in the Late Carboniferous, entering the transition period from the post-collision to the intraplate transformation, and put an end to the ocean-land transition environment.

     

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