Composition, age and geological significance of the Liushitage volcanics in West Kunlun mountains

被引：0
|
作者：
Li BoQin [1 ,2 ]
Yao Jianxin [1 ]
Wang JuChuan [2 ]
Ji WenHua [3 ]
Han FangLin [2 ]
机构：
[1] Chinese Acad Geol Sci, Inst Geol, Beijing 100037, Peoples R China
[2] Shaanxi Inst Geol Survey, Xianyang 712000, Shaanxi, Peoples R China
[3] Xian Inst Geol & Mineral Resoures, Xian 710054, Peoples R China
来源：
ACTA PETROLOGICA SINICA | 2007年 / 23卷 / 11期
关键词：
west kunlun; lishitage volcanics; composition; age; geological significance;
D O I：
暂无
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
A suit of volcanics formation was found near the Liushitage area, in west Kunlun. And the volcanics formation composed of strongly corroded basalt, epidote actinolitite, actinolitite, and is covered by deep water sedimentary rocks. The geochemistry characteristics of volcanic rocks indicate that this volcanics originated from basaltic magma of enrichment mantle, which was formed in oceanic island, therefore the volcanic rocks is an ocean relic block of Paleo- suture zone. Dating of this volcanic sample by Rb-Sr isotopes shows the epoch, getting the isochrone age of 563 48Ma, is Sinian. The dating shows that the ocean of Mazha-Kangxiwa-Subashi suture zone was formed in Sinian. This discovery has great implication for recognizing evolution history of the Mazha-Kangwaxi-Subashi suture zone.
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页码：2801 / 2810
页数：10
相关论文
共 22 条
  • [1] [Anonymous], 1992, OPENING CLOSING TECT
  • [2] DING DG, 1996, W KUNLUN OROGENIC BE, P20
  • [3] [韩芳林 Han Fanglin], 2002, [地质通报, Geological Bulletin of China], V21, P573
  • [4] Jiang C, 2000, OPENING CLOSING TECT, P154
  • [5] JIANG JH, 2000, ACTA GEOSCIENTIA SIN, V21, P23
  • [6] A CHEMICAL CLASSIFICATION OF VOLCANIC-ROCKS BASED ON THE TOTAL ALKALI SILICA DIAGRAM
    LEBAS, MJ
    LEMAITRE, RW
    STRECKEISEN, A
    ZANETTIN, B
    [J]. JOURNAL OF PETROLOGY, 1986, 27 (03) : 745 - 750
  • [7] [李博秦 LI Boqin], 2007, [地质通报, Geological Bulletin of China], V26, P457
  • [8] [李博秦 Li Boqin], 2006, [地质通报, Geological Bulletin of China], V25, P124
  • [9] LI XZ, 2002, GEOLOGICAL B CHINA, V21, P778
  • [10] LI YA, 1995, TECTONIC EVOLUTION Q, P107
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