Electrically conductive crust in southern Tibet from INDEPTH magnetotelluric surveying
Electrically conductive crust in southern Tibet from INDEPTH magnetotelluric surveying
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DOI：
10.1126/science.274.5293.1694
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发表时间：
1996-12-06
期刊：
影响因子：
56.9
通讯作者：
Tan, HD
中科院分区：
文献类型：
--
作者：
Chen, LH;Booker, JR;Tan, HD
喜马拉雅山以北的地壳一般在10至20公里深度以下是导电的，这个导电带接近康马穹隆下面的地表沿亚东-古鲁裂谷北方的剖面显示，高导区延伸到裂谷外，它在裂谷内的顶部与INDEPTH CMP（共同中点）剖面上成像的亮点地平线重合。中地壳的高传导率是稳定大陆区域的典型特征，表明该区域地壳中存在区域性相互关联的流体相。
The crust north of the Himalaya is generally electrically conductive below depths of 10 to 20 km, This conductive zone approaches the surface beneath the Kangmar dome (dipping north) and extends beneath the Zangbo suture, A profile crossing the northern Yadong-Gulu rift shows that the high conductivity region extends outside the rift, and its top within the rift coincides with a bright spot horizon imaged on the INDEPTH CMP (common midpoint) profiles. The high conductivity of the middle crust is atypical of stable continental regions and suggests that there is a regionally interconnected fluid phase in the crust of the region.