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Volume 23 Issue 5
Oct 2012
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Article Contents
Junpeng Wang, Timothy M Kusky, Ali Polat, Lu Wang, Songbai Peng, Xingfu Jiang, Hao Deng, Songjie Wang. Sea-Floor Metamorphism Recorded in Epidosites from the ca. 1.0 Ga Miaowan Ophiolite, Huangling Anticline, China. Journal of Earth Science, 2012, 23(5): 696-704. doi: 10.1007/s12583-012-0288-8
Citation: Junpeng Wang, Timothy M Kusky, Ali Polat, Lu Wang, Songbai Peng, Xingfu Jiang, Hao Deng, Songjie Wang. Sea-Floor Metamorphism Recorded in Epidosites from the ca. 1.0 Ga Miaowan Ophiolite, Huangling Anticline, China. Journal of Earth Science, 2012, 23(5): 696-704. doi: 10.1007/s12583-012-0288-8

Sea-Floor Metamorphism Recorded in Epidosites from the ca. 1.0 Ga Miaowan Ophiolite, Huangling Anticline, China

doi: 10.1007/s12583-012-0288-8
Funds:

the China Postdoctoral Science Foundation 20100471203

the Ministry of Land and Resources 1212010670104

the National Natural Science Foundation of China 91014002

the National Natural Science Foundation of China 40821061

the National Natural Science Foundation of China 41272242

Ministry of Education of China B07039

Ministry of Education of China TGRC201024

More Information
  • Corresponding author: Timothy M Kusky, tkusky@gmail.com
  • Received Date: 13 Oct 2011
  • Accepted Date: 23 Dec 2011
  • Publish Date: 01 Oct 2012
  • The epidosites are interpreted to form in upflow zones at the base of ore-forming oceanic hydrothermal systems that vent as black smokers on the sea floor. This study presents new field, major and trace element, and oxygen isotope data for the recently discovered epidosites in the ca. 1.0 Ga Miaowan (庙湾) ophiolite located near the northern margin of the Yangtze craton. The epidosites occur mainly in the cores of strongly deformed, lensoidal amphibolites. Field observations, major and trace elements and oxygen isotopes suggest that the epidosites were formed by metasomatism of ocean floor basalts, diabase dykes, and gabbros during seafloor hydrothermal alteration.

     

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