| 张杨,高光明.遥感技术在西藏班戈地区构造研究与找矿预测中的运用[J].地质找矿论丛,2011,26(2):217-221 |
| 遥感技术在西藏班戈地区构造研究与找矿预测中的运用 |
| Application of remote sensing technology to tectonic research and ore prospecting in the Bange county of Tibet autonomous region |
| 投稿时间：2009-12-07 |
| DOI：10.6053/j.issn.1001-1412.2011.2. 014 |
| 中文关键词: 遥感调查 班戈地区 韧性剪切带 地幔柱 伸展断陷盆地 蛇绿岩 拉分盆地 西藏 |
| 英文关键词:Remote sensing prospecting Bange area ductile share zone mantle plume extension fault basin ophiolite pull-apart basin Tibet |
| 基金项目:青藏铁路沿线矿产资源遥感调查项目(编号:1212010781043)资助 |
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| 中文摘要: |
| 西藏班戈地区的遥感地质调查研究表明:该区发育菱形网结状构造;错那、东错、蓬错、巴木错呈明显的"多字形"斜列,应为统一应力场下形成的伸展断陷盆地,并受到后期右行活动破坏;在东卡错—东错菱形块体中央隆起内发现有较大规模的岩浆岩侵入,推测该隆起区下为一地幔热柱;由北向南出露有东巧蛇绿岩带、东错—蓬错蛇绿岩带、白拉—觉翁蛇绿岩带,蛇绿岩带呈断续条带状出露;通过遥感蚀变信息提取和野外踏勘发现了多处矿化露头和矿化蚀变带。 |
| 英文摘要: |
| Investigation of remote sensing geology shows that rhombic anastomosing structure is developed and Cuona,Dongcuo,Pengcuo,Ba Mucuo are distributed in xi-type struoturd system en echelon in Bange area of Tibet.They should be extensional fault basins formed under the same stress field and exposed to later right lateral shear.Large magmatic body intruded in central dome of Dong Kacuo-Dong Cuo lozenge rhombic block suggesting that under the dome occurs a mantle plume.From north to south are exposed intermitently Dongqiao ophiolite,Dongcuo-Pengcuo ophiolite belt,Baila-Jueweng ophiolite and the ophiolite occura in belt.By means of extraction of remote sensing alteration information and field reconnaissance several mineralization and alteration occurrences were discovered. |
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