青藏高原清水河地区地质特征及其地球物理响应

Geologic Properties and their Geophysical Responses of the Qingshui River in Tibet Plateau

青藏高原多年冻土层地质特征与其地球物理响应之间关系的研究是长期困扰地质学者的一个大难题。根据区域地质资料,进行了清水河地区地质研究,查明了该地区的地层、地质构造和多年冻土层地下水特征;在此基础上,采用音频大地电磁法(AMT),对比研究了地质特征的地球物理响应;并布置地质钻孔验证了地质特征与地球物理响应之间的对应程度。结果表明,青藏高原清水河地区地质特征与其地球物理响应之间具有明显的一一对应关系。

The relation of permafrost between geologic properties and their geophysical responses perplexed geol- ogists for a long time. With regional geologic data, geologic properties of the Qingshui River in Tibet Plateau was studied. Characteristics of strata, structures and uudersround water were found out. On this basis, geophysical re- sponses to geologic properties were studied by audio frequency magnetotelluric method （AMT） , and geology drills were distributed to test and verify their degree of equivalence. The results show that there is evident one-to-one match between geologic properties and their geophysical responses.