Conductivity Hfmt Block Linear Change 2 D Forward Modeling Research

The high-frequency magnetotelluricmethod is a rock power difference is the basis and prerequisite for the use of natural alternating electromagnetic field study the elect--ronicstructure of the geologicalbody exploration methods. Current high-frequency m--agnetotelluric method or one-dimensional and two-dimensional inversion interprets the forward inversion. In this paper, forward modeling for the two-dimensional high--frequency magnetotelluric method. This paper studies the high-frequency magneto t--elluric method oftwo-dimensional forward problem and inversion realize more fully the forward support.This paper first reviews the development process of forward modeling of high-frequency magnetotelluric method, Research; and then starting from the Maxwell eq-uations derived in detail the partial differential equation of high-frequency magneto--telluric method and itsvariational problem; detailed description of the conductance the rate of block linearchanges in the high-frequency magnetotelluric method of finite element simulationsolution, and use the language of Frotran the preparation of a two--dimensional forward modeling program, details of the program implementation pro--cess. On this basis, theuniform level of hierarchical structure under ground, with tw--o-dimensional program on theone-dimensional calculations, the analytical solution a--nd numerical solution of contrast toverify the correctness of the algorithm procedure. Undertaken after a series of typicalgeoelectric model of the forward simulation analy-sis of the underground existence of theanomalous body’s response to electromagnetic fields, and illustrates the ability to distinguish different abnormal body in two modes, the inversion of high-frequencymagnetotelluric method laid a good foundation.In order to study the detection capabilities of the high-frequency magnetotelluric method for a thin layer of a single control through the thin layer of variable thickness, depth,resistivity, and the surrounding rock resistivity ratio, the study of these factors on high-frequency magnetotelluric method detectionthin layer of the ability of the law and come tosome meaningful conclusions beneficial to better guide the interpretation of field data.