| 准噶尔盆地周缘造山带裂变径迹研究及其地质意义 |
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| 引用本文： | 李玮,胡健民,渠洪杰.准噶尔盆地周缘造山带裂变径迹研究及其地质意义[J].地质学报,2010,84(2):171-182. |
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| 作者姓名： | 李玮 胡健民 渠洪杰 |
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| 作者单位： | 1. 西北大学大陆动力学国家重点实验室地质学系,西安,710069
2. 中国地质科学院地质力学研究所,北京,100081 |
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| 基金项目： | 国家自然科学基金项目(编号40802051);;西北大学大陆动力学国家重点实验室科技部专项经费资助成果 |
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| 摘 要： | 通过对准噶尔盆地东西两侧造山带地质剖面观察、系统裂变径迹测年与热演化模拟结果分析,并结合前人研究结果,准噶尔盆地周缘造山带中,主要经历了中生代晚期构造热事件。通过裂变径迹分析对比,准噶尔盆地两侧造山带具有不同的隆升历史,盆地西北缘早于东部隆升,隆升速率亦大于东部。准噶尔盆地西北缘自白垩纪以来经历了由准噶尔盆地边缘向扎伊尔山先后依次隆升事件,表明了准噶尔西北缘逆冲断裂系向盆内后展式逆冲推覆。准噶尔盆地东西两侧造山带岩石裂变径迹数据均反映了白垩纪以来的冷却隆升事件,充分证实了燕山晚期构造运动在准噶尔地区的普遍存在,为详细研究燕山期新疆北部陆内构造活动提供了证据。
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| 关 键 词： | 裂变径迹 热史模拟 准噶尔盆地 |
| 收稿时间： | 2009/2/26 0:00:00 |
| 修稿时间： | 7/18/2009 8:03:46 PM |
Fission Track Analysis on Junggar Basin peripheral orogen and Its Geological Significance |
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| liwei,Hu jianmin and Qu hongjie.Fission Track Analysis on Junggar Basin peripheral orogen and Its Geological Significance[J].Acta Geologica Sinica,2010,84(2):171-182. |
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| Authors: | liwei Hu jianmin and Qu hongjie |
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| Institution: | northwest university,Institute of Geomechanics, Chinese Academy of Geologic Sciences,Institute of Geomechanics, Chinese Academy of Geologic Sciences |
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| Abstract: | This study conducted systematic fission track dating and thermal analysis of the evolution of simulation results based on the observation of the cross sections in the eastern and western orogenic belt of the Junggar Basin. The research in combination with previous results shows that the peripheral orogenic belt of the Junggar Basin underwent tectonic thermal event during the late Mesozoic. Fission-track analysis and comparison shows that the orogenic zones on both sides of the Junggar Basin have different u... |
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| Keywords: | fission track thermal history modelling Junggar basin |
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