位场场源边界识别新技术及其在山西古构造带与断裂探测中的应用研究  

NEW DETECTION TECHNIQUES OF GEOLOGIC BOUNDARIES USING POTENTIAL-FIELD DATA AND ITS APPLICATION IN THE SHAN'XI PALEO-STRUCTURE ZONE AND FAULTS

作　　者：刘金兰[1] 李庆春[1] 赵斌 

机构地区：[1]长安大学地质工程与测绘工程学院,西安710054 [2]山西地质勘探局物理化学勘察研究院,运城044004

出　　处：《工程地质学报》2007年第4期569-574,共6页Journal of Engineering Geology

基　　金：国家自然科学基金重点项目(编号:4053021).

摘　　要：给出了位场场源边界识别的最新技术,利用斜导数法、斜导数水平梯度法及theta图法对山西境内古裂陷带和古拼接带及山西地堑系主要断裂构造进行了边界位置识别研究,并与常规水平梯度法进行对比分析。对理论模型和山西实际资料的边界识别结果表明:这些新技术的识别效果都优于传统水平梯度法,能获得更丰富的地质信息。This paper presents and compares some new techniques for source boundaries detection using potential - field data. The geologic boundaries of paleo - fault zone and faults in Shanki Province with better resolution are recognized by the following methods： tilt derivative （TDR）, total horizontal gradient of the TDR and theta map, etc.. The results indicated that the new detection technology is more effective and accurate than the traditional horizontal gradient one and can gather more geological information.

关 键 词：边界探测 斜导数 斜导数水平梯度 Theta图 断裂 古裂陷带 

分 类 号：P642.4[天文地球—工程地质学]