| 西藏尼玛盆地油页岩的发现及其地质意义 |
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| 引用本文： | 李亚林,王成善,朱利东,王立成,杨文光.西藏尼玛盆地油页岩的发现及其地质意义[J].地质通报,2010,29(12):1726-1729. |
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| 作者姓名： | 李亚林 王成善 朱利东 王立成 杨文光 |
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| 作者单位： | 1. 中国地质大学(北京),北京,100083
2. 成都理工大学,四川,成都,610059 |
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| 基金项目： | 国土资源部项目，国家自然科学基金项目 |
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| 摘 要： | <正>青藏高原在长期复杂的演化过程中发育了一系列时代与类型不同的含油气盆地,但由于古生代以来冈瓦纳大陆裂解和特提斯洋的开启-闭合-造山作用的影响,特别是新生代以来印度-欧亚板块强烈碰撞造山和高原隆升作用的影响,含油气盆地受到了不同程度的改造,加之恶劣的自然环境,青藏高原成为中国目前油气地质研究和勘探程度最低的地区。
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| 关 键 词： | 折光率 重液法 密度差值很小的单矿物 单矿物 石英 绢云母 长英质矿物混合体 绢云母长英质混合物 |
Discovery of oil shale in the Nima basin, Tibet, China and its significance |
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| LI Ya-lin,WANG Cheng-shan,ZHU Li-dong,WANG Li-cheng,YANG Wen-guang.Discovery of oil shale in the Nima basin, Tibet, China and its significance[J].Geologcal Bulletin OF China,2010,29(12):1726-1729. |
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| Authors: | LI Ya-lin WANG Cheng-shan ZHU Li-dong WANG Li-cheng YANG Wen-guang |
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| Institution: | 1. China University of Geosciences, Beijing 100083, China;2. Chengdu University of Technology, Chengdu 610059, Sichuan, China |
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| Abstract: | This paper describes the separation methods of single mineral with small density difference. Using extremely subtle differences of heavy liquid refractive index in thousandth and ten-thousandth could separate single mineral quartz and sericite. Quartz from felsic mixture separation technology can be used to separate sericite from sericite felsic mixture . Improved heavy liquid separation technology is characterized of fast, efficient and economic. When the heavy liquid of refractive index is 1.577-1.580, the separation purity of quartz can reach 95-99%. When the heavy liquid of refractive index is 1.5895-1.5840, the separation purity of sericite can reach 90-99%. |
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| Keywords: | refractive index heavy liquid method single mineral with small density difference single mineral quartz sericite felsic minerals mixture sericite felsic mixture |
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