摘要
青藏高原构造复杂,岩层、煤层倾角较陡,过去物探方法找煤效果不够理想。近几年在鱼卡煤田云雾山地区、小红山地区、羊水河地区、天峻苏里地区及海北门源盆地等地利用可控源音频大地电磁测深(CSAMT)进行勘探,有效解决了高原冻土带高阻屏蔽层下第四系厚度、含煤岩系侏罗系基底深度、构造及基底起伏形态等地质问题。为钻探的布设提供了物探依据。
The complex structure,steep strata and coal seams in the Qinghai-Tibetan plateau made the effect of geophysical prospecting in coal seeking not ideal in the past.Since the use of the controlled-source audio magnetotelluric sounding（CSAMT） in the Yunwushan,Xiaohongshan,Yangshuihe areas in the Iqe coalfield,the Suri area in the Tianjun County and the Mengyuan Basin in the Tibetan Autonomous Prefecture of Haibei in recent years,has been solved geological issues of Quaternary System thickness under the plateau permafrost zone high resistivity shield,coal-bearing Jurassic basement depth,structure and basement undulating etc.effectively.Thus has provided geophysical prospecting basis for drilling engineering layout.
出处
《中国煤炭地质》
2011年第12期46-50,共5页
Coal Geology of China
关键词
可控源音频大地电磁测深
高原冻土
高阻屏蔽
青藏高原
controlled-source audio magnetotelluric sounding（CSAMT）
frozen ground
high resistivity shielding
Qinghai-Tibetan plateau
