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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2006, Vol. 7 Issue (Supplement 2): 320-324    DOI: 10.1631/jzus.2006.AS0320
Original Paper     
40Ar-39Ar dating of basalts from Tarim Basin, NW China and its implication to a Permian thermal tectonic event
Yang Shu-Feng, Li Zi-Long, Chen Han-Lin, Chen Wen, Yu Xing
Department of Earth Science, School of Science, Zhejiang University, Hangzhou 310027, China; Key Isotopic Laboratory, Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China; Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China
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Abstract  This paper reports 40Ar-39Ar ages of northwestern China’s Tarim Basin Permian basalts. 40Ar-39Ar age dating for basaltic samples from the Yingan section, Keping area and Damusi section of the southwestern part of Tarim Basin yields plateau ages of (281.8±4.2) Ma and a weighted mean value of (290.1±3.5) Ma respectively. This study combined with previous data indicates that the basaltic rocks from the studied area formed during 282~290 Ma. 40Ar-39Ar age dating from the basalts addresses a tectonothermal event in the Tarim Basin that occurred during the Early Permian of 278~290 Ma.

Key words： 40Ar-39Ar age dating      Basalt      Tectonic setting      Tarim Basin     
Received: 13 March 2006     
CLC:  P58  
  P59  
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Yang Shu-Feng
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Cite this article:

Yang Shu-Feng, Li Zi-Long, Chen Han-Lin, Chen Wen, Yu Xing. 40Ar-39Ar dating of basalts from Tarim Basin, NW China and its implication to a Permian thermal tectonic event. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2006, 7(Supplement 2): 320-324.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2006.AS0320     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2006/V7/ISupplement 2/320

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