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METHODS OF THREE-DIMENSIONAL POTENTIAL FIELD MODELING AND INVERSION FOR LAYERED EARTH MODELS
METHODS OF THREE-DIMENSIONAL POTENTIAL FIELD MODELING AND INVERSION FOR LAYERED EARTH MODELS
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机译:层状地球模型的三维势场建模与反演方法
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摘要
A method for 3D modeling and inversion of potential field geophysical survey data measured above a geological formation having density and/or magnetization and/or susceptibility is described, using potential field data including but not limited to gravity and/or magnetic scalar and/or vector and/or tensor data. The 3D earth model is parameterized in terms of spatially variable contrast surfaces between different geological formations which are characterized by physical properties such as density and/or magnetization and/or susceptibility values and/or functions. The properties of the 3D earth model may be constrained from a priori information. The potential field responses and/or Frechet derivatives (sensitivities) of the spatially variable contrast surfaces between different geological formations and/or physical properties are analytically evaluated using Cauchy-type integral representations of the potential fields for each of the contrast surfaces.
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