摘要
在阿尔山活火山区一条北北西向测线上进行了 7个大地电磁测深点的观测 .2_D解释结果表明 ,研究区内新、老两条火山带可能存在通往深部的岩浆通道 .其中 ,新发现的活火山带地下在 10～ 12km还保持着较高的热状态 ,很可能富含流体 ,在 30～ 5 0km处可能是地幔向上的供热通道 ;而老火山带 30km以上可能存在一个正在冷却的岩浆通道 ,两条火山条带的深部可能是同源的 .
MT measurement has been carried out along a profile in NNW direction at 7 sites in the Aershan volcano area. The data has been processed and analysed. The substructure has been obtained by applying 2-D inversion. The 2-D result reveals that there exist two belts down to the mantle beneath two volcanic chains. It may be of high temperature and rich in fluid at the depth of 10～12 km under the one volcano that was found newly. There is a path supplying heat to the crust from the mantle. The belt under the old volcano belt has being cold down to the depth of 30 km. The two volcanic belts have the same resource at depth.
出处
《地球物理学报》
SCIE
EI
CAS
CSCD
北大核心
2005年第1期196-202,共7页
Chinese Journal of Geophysics
基金
国家自然科学基金项目 (4 0 2 740 17)资助
