| 河西走廊西段地球物理场特征及相关地质问题探讨 |
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| 引用本文： | 杨重信.河西走廊西段地球物理场特征及相关地质问题探讨[J].甘肃地质学报,2005,14(1):76-81. |
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| 作者姓名： | 杨重信 |
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| 作者单位： | 甘肃省地质调查院,甘肃,兰州,730000;甘肃省地矿局第二地勘院,甘肃,兰州,730020 |
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| 摘 要： | 据河西走廊西段敦煌—金塔一带区域地球物理场特征反映的构造格局,通过构造应力场和动力学分析研究认为,基于阿尔金走滑断裂带东北段存在尾端效应,产生一系列与走滑断裂伴随的裂陷盆地和挤压隆起,能量的消减和转换致使阿尔金断裂止于花海裂陷,向东并未延伸;在疏勒河两岸遥感影像和色调差异,主要反映两侧山前冲洪积扇发展不平衡,岩性含水性的差异,疏勒河隐伏断裂在地球物理场未能得到佐证;敦煌盆地地热田受NNE向张性断裂导热,NNE向压扭性断裂阻水阻热两重因素控制,热源除地壳正常增温还有壳内局部热源叠加。
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| 关 键 词： | 河西走廊西段 地球物理场特征 裂陷盆地 疏勒河遥感影像 敦煌地热田 |
DISCUSSION OF GEOPHYSICAL FIELD CHARACTERISTICS AND
OTHER GEOLOGICAL ISSUES IN WEST HEXI CORRIDOR |
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| YANG Chong-xin.DISCUSSION OF GEOPHYSICAL FIELD CHARACTERISTICS AND
OTHER GEOLOGICAL ISSUES IN WEST HEXI CORRIDOR[J].Acta Geologica Gansu,2005,14(1):76-81. |
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| Authors: | YANG Chong-xin |
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| Institution: | YANG Chong-xin~1,LI Bai-xiang~2,WANG Zhi-lin~2 |
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| Abstract: | On the basis of comprehensive geophysical survey result in area of Donghuang-Jinta of west Hexi corridor recent years, it's in this paper which was discussed about such 3 geological issues as extension of Altun fault, fault in Shule river, geothermal control and mechanism in Donghuang basin. |
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| Keywords: | West Hexi Corridor Geophysical field characteristics Remote-sensing imagery of Shule river Fault depression basin Donghung geothermal field |
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