SHRIMP Dating of the Qiqijianake Ophiolitic Mélange in the Kokshai Region, Southwestern Tianshan and Its Tectonic Implications
详细信息
- 责任者：Wang Ying (State Key Laboratory of Geological Processes and Mineral Resources ; China University of Geosciences ; Beijing 100083 ; China) ; Huang He
- 刊名：Acta Petrologica Sinica
- 出版年：2012
- 卷期：28(4)
- 关键词：蛇绿混杂堆积 ; ophiolite complexes ; SHRIMP定年 ; SHRIMP dating ; 天山 ; Tianshan Mountains
- 页码：p.1273-1281
- 图表：illus., 1 table, 50 refs.
- 分类号：0300
- issnNo：ISSN1000-0569
- isbnNo：CN11-1922/P
摘要
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line-height-rule: exactly" class=MsoNormal>In this paper, the authors report the SHRIMP U-Pb zircon data for basalt from the Qiqijianake ophiolitic mélange. It shows that the Qiqijianake ophiolitic mélange formed in the Early Devonian (399±4) Ma. In combination with previously published data, the authors infer that the Qiqijianake ophiolitic mélange and Jigen ophiolitic remnant are the extention of South Tianshan ophiolite zone in central