| 新疆西准噶尔巴尔鲁克蛇绿岩形成时代及大地构造意义 |
| |
| 引用本文： | 温志刚,赵文平,刘团锋,刘松柏.新疆西准噶尔巴尔鲁克蛇绿岩形成时代及大地构造意义[J].地质通报,2016,35(9):1401-1410. |
| |
| 作者姓名： | 温志刚 赵文平 刘团锋 刘松柏 |
| |
| 作者单位： | 1. 陕西区域地质矿产研究院, 陕西 咸阳 712000;2. 中国地质大学(北京)地球科学与资源学院, 北京 100083;3. 陕西工贸公司, 陕西 西安 710000 |
| |
| 基金项目： | 中国地质调查局项目（编号：12120109l1056、1212011120507） |
| |
| 摘 要： | 新疆西准噶尔地区分布多条蛇绿岩带,通过对巴尔鲁克蛇绿岩中2个辉长岩LA-ICP-MS锆石U-Pb测年,获得比较准确的年龄数据512.3±7.2Ma、521.1±2.8Ma。确定了该蛇绿岩的形成时代为晚寒武世;结合混杂岩带内岩石组合特征及其与中—下泥盆统库鲁木迪组为不整合接触,推断该蛇绿混杂岩带与唐巴勒蛇绿岩带及玛依勒蛇绿岩为同一时代、同一构造带产物,就位时代不晚于早泥盆世。
|
| 关 键 词： | 西准噶尔 巴尔鲁克蛇绿岩 辉长岩 LA-ICP-MS锆石U-Pb年龄 |
| 收稿时间： | 2016/4/20 0:00:00 |
| 修稿时间： | 6/3/2016 12:00:00 AM |
Formation age and geotectonic significance of Baerluke ophiolite in west Junggar, Xinjiang |
| |
| WEN Zhigang,ZHAO Wenping,LIU Tuanfeng and LIU Songbai.Formation age and geotectonic significance of Baerluke ophiolite in west Junggar, Xinjiang[J].Geologcal Bulletin OF China,2016,35(9):1401-1410. |
| |
| Authors: | WEN Zhigang ZHAO Wenping LIU Tuanfeng and LIU Songbai |
| |
| Institution: | 1. Academy of Regional Geological Survey and Mineral Resources Exploration of Shaanxi, Xianyang 712000, Shaanxi, China;2. School of Earth Sciences and Resources, China University of Geosciences(Beijing), Beijing 100083, China;3. Shaanxi Industry and Trade Corporation, Xi''an 710000, Shaanxi, China |
| |
| Abstract: | Severial ophiolite belts are distributed in west Junggar area, Xinjiang. LA-ICP-MS zircon U-Pb dating of two gabbro bodies in the Baerluke ophiolite yielded the age of 512.3±7.2Ma and 521.1±2.8Ma, respectively, which indicate that the ophiolite was formed in Late Cambrian. Combined with characteristics of rock combination in ophiolite and its unconformity contact with middle-lower Devonian Kulumudi Formation, the authors hold that this ophiolitic melange belt and Tangbale and Mayile ophiolite belt were formed in the same epoch and in the same tectonic belt, with the emplacement not later than Early Devonian. |
| |
| Keywords: | west Junggar Baerluke ophiolite gabbro LA-CP-MS zircon U-Pb age |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《地质通报》浏览原始摘要信息 |
| 点击此处可从《地质通报》下载免费的PDF全文 |
|
