TEM最简化反演及在研究永久冻土层中的应用  

Application for Simplest Inversion of TEM in the Frozen Layer Study

作　　者：张志厚[1] 刘国兴[1] 

机构地区：[1]吉林大学地球探测科学与技术学院,长春130026

出　　处：《吉林大学学报（地球科学版）》2006年第S2期23-26,共4页Journal of Jilin University：Earth Science Edition

基　　金：中国地质调查局项目(200410100001)

摘　　要：阐述了基于烟圈理论的最简化反演方法和磁源TEM测深一维经验式反演方法,这两种方法可由观测数据直接反演,不需要初始模型。结合中国东北永久冻土层勘查研究课题,对TEM原始探测数据进行了反演解释。两种反演结果对揭示沿剖面横向、纵向的电性层变化,体现了较好的一致性,可为分析、划分不同电性界面的变化趋势提供参考依据。The authors expound the simplest inversed method according to the smoke loop theory and the 1-D empirical inversion formular method based on the magnetic source TEM sounding theory.In both the two methods the measured datum can be directly inversed,which doesn't need the initial models.Associating with the instance of the ever frozen layer in Northeast China(it is a part of the item of the China Geology Survey about'the natural gas hydrate prospective investigation in the Northeast China'),we do the explanation of the TEM original measured data inversion.The two inversed conclusions consistently reveals the spatial distribution regularity of the ever frozen layer.It has offered the reliable evidences in analyzing the existence of the ever frozen layer.

关 键 词：TEM 烟圈反演 经验式反演 永久冻土层 

分 类 号：P631.3[天文地球—地质矿产勘探]