| 新疆东昆仑木孜塔格蛇绿混杂岩发现早石炭世放射虫 |
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| 引用本文： | 兰朝利,吴峻,李继亮,俞良军,李红生,王义天.新疆东昆仑木孜塔格蛇绿混杂岩发现早石炭世放射虫[J].地质科学,2002,37(1):104-106. |
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| 作者姓名： | 兰朝利 吴峻 李继亮 俞良军 李红生 王义天 |
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| 作者单位： | 1. 石油大学石油工程系, 北京, 102200;2. 中国科学院地质与地球物理研究所岩石圈构造演化开放研究实验室, 北京, 100029;3. 中国地质科学院矿床研究所, 北京, 100037 |
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| 基金项目： | 国家“九五”科技攻关“3 0 5”项目 0 6 0 3专题资助 |
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| 摘 要： | 在新疆木孜塔格蛇绿混杂岩的燧石中发现了早石炭世杜内晚期的放射虫化石,首次为这套蛇绿混杂岩提供了时代依据.结合在邻区的祁漫塔格和可可西里发现的放射虫,认为青藏高原北缘在早石炭世期间曾沿多处裂解.它们之间可能有狭窄的通道相连,是否构成统一的大洋尚待进一步研究.
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| 关 键 词： | 木孜塔格 蛇绿混杂岩 放射虫 早石炭世 |
| 收稿时间： | 2000-08-22 |
| 修稿时间： | 2000-08-22; |
DISCOVERY OF EARLY CARBONIFEROUS RADIOLARIAS IN MUZTAG OPHIOLITIC MELANGE, EAST KUNLUN, XINJIANG |
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| Lan Chaoli.DISCOVERY OF EARLY CARBONIFEROUS RADIOLARIAS IN MUZTAG OPHIOLITIC MELANGE, EAST KUNLUN, XINJIANG[J].Chinese Journal of Geology,2002,37(1):104-106. |
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| Authors: | Lan Chaoli |
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| Institution: | 1. Petroleum Engineering Department, Petroleum University, Beijing 102200;2. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029;3. Institute of Ore Deposit, Chinese Academy of Geological Sciences, Beijing 100037 |
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| Abstract: | A radiolarian association in age of Late Tournaisian, Early Carboniferous, is found in a chert of Muztag ophiolitic melange, Xinjiang Uygur Autonomous Region. It offers age data for this ophiolite for the first time. Combined with the radiolaria data found in the adjacent Qimantage and Hoh Xil areas, it is considered that the northern Qinghai Xizang Plateau has rifted at several places during Early Carboniferous. These places may have been connected by strait, but whether they form a unified open ocean is clarified by further work. |
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| Keywords: | Muztag ophiolitic melange Radiolaria Early Carboniferous |
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