位场多尺度导数分析法识别线性构造-以新疆卡拉塔格地区重力解译断裂构造为例

Identification of Lineaments Based on Multiscale Derivative Analysis of Potential Fields:A Case Study of Interpretation of Faults in the Kalatage Area,Xinjiang using gravity data

本文介绍了一种新的地质体边界识别方法-位场多尺度导数分析法。在基本原理介绍及理论模型试验的基础上,对该方法在地质体边界识别中的有效性进行了论证。然后,利用该方法对新疆卡拉塔格地区1:5万重力数据进行了多尺度导数处理,识别出了不同尺度和走向的断裂构造,进一步证明多尺度导数分析方法能够对位场数据进行有效的分离和信息增强,进而识别出不同尺度场源体的边界。

Thise paper introduces a new method for detection of geologicalon potential field boundaraiesry identification calledbased on potential field muhiscale derivative analysis of potential fields. First,we present The superiority in the identification of potential field data boundary is analyzed by the ex- planation of the basic principles of this method and its test on a theoretical modelthe model test. Next we confirm its effectiveness in identification of boundaries of geological bodies. Then we use this method to The process of the Bouguer gGravity aAnomaly data infor the Kalatage area of Xinjiang and recognize faults withhave been performed by the use of multlscale derivative analysis and the different scales and trends, lineaments have been identified. It is proved that the muhiscale derivative analysis permitsis effective on the separation to separateof potential field data and enhance useful information,and further delineatethen the boundariesy of field-sourcethe bodlesy of varledat different scales field source will be identified.