位场数据线性特征提取技术在扎河坝地区构造划分中的应用  

Application of Linear Feature Extraction Technology of Potential Field Data in Fault Structure Division in Zhaheba Area

作　　者：孔繁良 周权[3] 蒋忠祥 Kong Fanliang;Zhou Quan;Jiang Zhongxiang(School of Geophysics and Information Technology,China University of Geosciences(Beijing),Beijing,100083,China;Xinjiang Uygue Autonomous Region of Geological and Mineral Resources Exploration and Development Bureau Eighth Geological Brigade,Aksu,Xinjiang,843000,China;Geophysical and Geochemical prospecting group of Xinjiang bureau of geology and mineral resources Exploration and Development,Changji,Xinjiang,831100,China;College of Geological and Mining Engineering Xinjiang University,Urumqi,Xinjiang,830047,China)

机构地区：[1]中国地质大学(北京)地球物理与信息技术学院,北京100083 [2]新疆维吾尔自治区地质矿产勘查开发局第八地质大队,新疆阿克苏843000 [3]新疆维吾尔自治区地质矿产勘查开发局地球物理化学探矿大队,新疆昌吉831100 [4]新疆大学地质与矿业工程学院,新疆乌鲁木齐830047

出　　处：《新疆地质》2023年第1期103-108,共6页Xinjiang Geology

基　　金：中央返还两权价款资金项目新疆富蕴县扎河坝地区1:5万综合物探普查(T16-1-LQ18)资助。

摘　　要：为精细解译划分新疆扎河坝地区地质构造,指导地质找矿工作,在介绍研究区地质背景、布格重力异常、航磁异常特征的基础上,分别采用水平方向导数和总水平梯度倾角法(TAHG)对研究区布格重力异常数据进行线性构造提取对比分析。结果表明,后者较传统方向导数法,提取构造的连续性更强,能识别出不同规模层次的断裂,精度更高。通过综合研究,共识别区内一级断裂(深大断裂)5条,二级断裂25条,取得了较好的应用效果。In order to accurately interpret and divide the geological structure of Zhaheba area in Xinjiang and guide the geological prospecting work,On the basis of introducing the geological background of the study area,and the charac-teristics of Bougue gravity and aeromagnetic anomalies,using by the horizontal derivative and the total tilt angle of horizontal grandient(TAHG)to analyse the linear structure with Bouguer gravity anomaly data in the study area.The results show that the TAHG is more continuous than the traditional directional derivative method in extracting structures,and can identify faults of different scales and levels,has higher accuracy.Through comprehensive research,5 primary faults(deep and large faults)and 25 secondary faults have been identified,and good application results have been achieved.

关 键 词：线性特征提取 方向导数 总水平梯度倾斜角法 准噶尔北缘 蕴都卡拉金铜钴矿床 

分 类 号：P54[天文地球—构造地质学]