| 西天山特克斯达坂晚古生代若干不整合的厘定及地质意义 |
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| 关键词:unconformity tectonic movement fold episode Late Paleozoic West Tianshan Mountain |
| 基金项目:新疆维吾尔自治区地质矿产调查项目(编号:XJQDZ2004-12); 国家自然科学基金项目(编号:40534020) |
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| Clarification of Late Paleozoic Unconformities in the Tekes Daban area of West Tianshan and Its Geological Significance |
| The unconformity between strata makes up an important basis in the study of geological history and the judgment of characteristics and date of crustal movement. On the basis of 1∶50 000 geological survey,six unconformity surfaces were defined in Upper Paleozoic strata of Tekes Daban area within the West Tianshan Mountain. The results obtained not only demonstrate that there have had at least six fold episodes in the study area but also enrich the content of fold episode. The newly-established Tekes movement based on the angular unconformity between Dongtujinhe Formation and Keguqinshan Formation suggests that the Shanshan movement is the main fold episode in the Tianshan Mountains, which has recorded the collision and suture between the Junggar plate and the Tarim plate. The Tekes movement and the other five fold episodes provide abundant information for the study of tectonics evolution in Tianshan area. |
| LI Yong-jun,ZHANG Tian-ji,LUAN Xin-dong,WANG Xiao-gang,YANG Gao-xue,DONG Li-ming.2008.Clarification of Late Paleozoic Unconformities in the Tekes Daban area of West Tianshan and Its Geological Significance[J].Acta Geoscientica Sinica,29(2):145-153. |
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