| 基于GF-2影像西藏桑耶地区岩性-构造遥感解译 |
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| 作者姓名： | 侯德华 张立国 王硕 王金贵 程州 |
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| 作者单位： | 河北省区域地质调查院,廊坊 065000 |
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| 基金项目： | 中国地质调查局“西藏桑耶地区1:5万区域地质调查(H46E016005, H46E016006, H46E017005, H46E0l7006)(编号: 121201010000150014-03)”项目资助 |
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| 摘 要： | 西藏桑耶地区位于青藏高原中南部,区内切割强烈,地势陡峻,属于高山峡谷区。为提高区域地质调查野外工作效率,在调查中率先开展了遥感解译研究。在充分收集已有资料的基础上,通过对GF-2卫星数据进行预处理和影像增强,结合野外验证建立了各地质要素的遥感解译标志,实现了区内不同地层岩性、侵入岩、断裂和褶皱等地质要素的提取,最终编制了研究区1:5万遥感地质解译图,为区域地质调查提供了数据支撑。结果表明: 各地质要素在GF-2数据上均有良好反映,完全满足1:5万尺度的遥感地质解译和编图的需要,充分显示出该卫星数据在区域地质调查等工作中具有良好的应用前景。
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| 关 键 词： | GF-2数据 西藏桑耶 解译标志 构造 岩性 |
| 收稿时间： | 2018-02-07 |
Interpretation of lithology-structure in Sangye region of Tibet based on GF-2 satellite remote sensing images |
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| Authors: | HOU Dehua ZHANG Liguo WANG Shuo WANG Jingui CHENG Zhou |
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| Institution: | Hebei Regional Geological Survey Institute, Langfang 065000, China |
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| Abstract: | Sangye region of Tibet, located in south central Qinghai-Tibet Plateau, has strong cutting and steep terrain, and belongs to the alpine gorge area. In order to improve the field work efficiency of regional geological survey, the authors did research of remote sensing interpretation first in the survey. By collecting sufficiently the existing data, doing the pre-processing and image enhancement of the GF-2 satellite data, and combining with field verification, the authors established the remote sensing interpretation signs of each geological elements, and extracted the lithology of different strata, intrusive rocks, faults, folds and other geological elements in the study area. They also made the 1:50 000 geological map of remote sensing interpretation in the study area, which provide data support for regional geological survey. The results show that all geologic elements are well reflected in GF-2 satellite data, which can fully meet the 1:50 000 remote sensing geological interpretation and mapping, and have favorable application prospect in regional geological survey. |
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| Keywords: | GF-2 satellite data Tibet Sangye interpretation signs structure lithology |
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