| 鄂尔多斯盆地西缘汝箕沟煤矿区的石英脉及其地质意义 |
| |
| 引用本文： | 张慧,晋香兰,张泓,李小彦,吴传荣.鄂尔多斯盆地西缘汝箕沟煤矿区的石英脉及其地质意义[J].地质学报,2006,80(5):768-774. |
| |
| 作者姓名： | 张慧 晋香兰 张泓 李小彦 吴传荣 |
| |
| 作者单位： | 煤炭科学研究总院西安分院,710054 |
| |
| 基金项目： | 国家重点基础研究发展计划“973”项目(编号2003CB214602)资助成果。 |
| |
| 摘 要： | 鄂尔多斯盆地西缘地处特殊的大地构造位置,其间的宁夏汝箕沟出产世界上最优质的无烟煤,该区多年来一直被多学科科研人员所关注。笔者从地质背景入手,较详细的论述了汝箕沟矿区石英脉的岩性、与围岩的接触关系、规模、时空分布、产状、组合、矿物包裹体等发育特征,比较了该区石英脉与诸多煤田和煤系中脉岩的差异。综合分析认为,该区石英脉与推测隐伏火成岩体紧密相关,深部岩浆分异后期的气成热液上涌是石英脉形成的主导因素。石英脉对该区构造热事件、深大断裂活动、煤变质类型等有一定指示意义。本文研究表明,汝箕沟侏罗纪煤变质与盆地油、气成藏同受晚侏罗世—早白垩世期间的构造热事件影响,同一重大地质事件在盆地内部和边缘表现形式有别,各地响应方式不同。
|
| 关 键 词： | 鄂尔多斯盆地西缘 宁夏汝箕沟 无烟煤 石英脉 发育特征 地质意义 |
| 修稿时间： | 1/5/2006 12:00:00 AM |
Quartz Vein and Its Geological Significance Rujigou Mining Area in the West of Ordos Basin |
| |
| ZHANG Hui,JIN Xianglan,ZHANG Hong,LI Xiaoyan,WU Chuanrong.Quartz Vein and Its Geological Significance Rujigou Mining Area in the West of Ordos Basin[J].Acta Geologica Sinica,2006,80(5):768-774. |
| |
| Authors: | ZHANG Hui JIN Xianglan ZHANG Hong LI Xiaoyan WU Chuanrong |
| |
| Abstract: | Scholars in many fields have been focused on the west of Ordos basin for long time because of its special tectonic location and the best anthracite at Rujigou mining area Ningxia. Beginning with areal geologic background, the authors have discussed the features of quartz vein at Rujigou mining area Ningxia, such as lithology, contact correlation with wall rock, scales, space-time distribution, attitudes, assemblage, mineral inclusion, and have compared the quartz vein with the veins within other coalfields and coal measures. It is considered that the quartz vein has something to do with concealed igneous rock., and its forming is because of pneumatolytic hydrothermal upwelling from magma differentiation in the deep. The quartz vein has dication significances for the tectono-thermal events, movements of fault and types of coal metamorphism. Researches in the paper has shown that coal metamorphism Jurassic at Rujigou mining and hydrocarbon reservoir-forming are under the influence of tectono-thermal events during late Jurassic-early Cretaceous. To same great geological events, responding of interior is different to that of edge in Ordos basin. |
| |
| Keywords: | west of Ordos basin Rujigou of Ningxia Anthracite developing features geological significance |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《地质学报》浏览原始摘要信息 |
| 点击此处可从《地质学报》下载免费的PDF全文 |
|
