腾冲火山多地球物理参数模型

腾冲火山区是中国最年轻的板内火山之一，岩浆活动频繁以及高温地热异常使其受到广泛关注.以往的地球物理探测结果显示腾冲火山区下方存在地壳岩浆囊，但其深部几何形态和分布一直存在争议.本文基于腾冲火山地区的大地电磁测深结果，并结合相关地质与地球物理资料，提出腾冲火山岩石圈尺度的多地球物理参数模型.我们的模型显示在腾冲火山区中下地壳内存在三个岩浆囊；腾冲火山区岩石圈上地幔可能存在岩浆囊，但需要长周期大地电磁测深数据进一步的验证.

A multi-geophysical parameter model in Tengchong volcanic area

Tengchong volcano is one of the youngest intraplate volcanoes in China. Its frequent magmatic activity and abnormally high temperature geothermal have aroused widespread concern. Previous geophysical survey results show that there are crustal magma chambers under the Tengchong volcanic area. However, its deep geometric structure and distribution have always been controversial. In this paper, we propose a lithospheric-scale multi-geophysical parameter model of Tengchong volcano, which is based on the magnetotelluric sounding results of the Tengchong volcanic area and combines relevant geological and geophysical results. Our model shows that there are three magma chambers in the middle and lower crust of the Tengchong volcanic area; there may be magma chambers in the upper mantle of the lithosphere scale, but long-period magnetotelluric sounding data are needed for further verification.