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为配合科学钻探选址,在云南腾冲县城以北至固东镇之间沿东西向布设了4条可控源音频大地电磁测深剖面和2条大地电磁测深剖面,对6条剖面的电磁测深资料进行了预处理和二维反演,获得了6条剖面的电阻率模型。这些剖面具有的主要电性结构特征为:盆地地壳内存在2套低阻,其中浅部的低阻层沿南北向稳定存在,由含水(热水)的火山岩下部、花岗岩上部与花岗砂砾岩组成,构成了腾冲盆地的地热资源的热储层,其主要层位在300~1500 m范围内;深部的低阻体是作为热源的岩浆囊,位于马站—曲石乡之间的部分深12~30 km,东西宽25 km以上。以上电性特征为研究云南腾冲火山构造区岩浆和火山活动提供了地球物理依据。
To tie in with the scientific drilling site, four controlled electromagnetic audio sounding profiles and two electromagnetic profiles were set up along the east-west direction from north to east of Tengchong County in Yunnan Province. Electromagnetic Sounding data were preprocessed and two-dimensional inversion, obtained six sections of the resistivity model. The main electrical features of these profiles are as follows: There are two sets of low resistivity in the crust of the basin, in which the low-resistivity layer of the shallow part exists stably in the north and south direction, and consists of the lower portion of volcanic rocks containing water (hot water), granite upper part and granodiorite conglomerate , Forming the thermal reservoir of the geothermal resources in the Tengchong Basin with the main horizon in the range of 300-1500 m; the deep low resistivity body is the magma chamber as a heat source, part of the reservoir between Ma Station and Qu Shixiang 12 ~ 30 km, east-west width 25 km above. The above electrical characteristics provide geophysical basis for the study of magmatism and volcanic activity in Tengchong volcanic tectonic setting in Yunnan Province.