基于重磁欧拉3D反褶积的相山基底起伏研究  

Research of Xiangshan volcano basin based on 3D gravity and magnetic Euler deconvolution

作　　者：林万里[1] 方根显[1] 戴清峰 谈顺佳[1] 周阳权 

机构地区：[1]东华理工大学放射性地质与勘探技术国防重点学科实验室,南昌330013

出　　处：《物探化探计算技术》2015年第2期158-163,共6页Computing Techniques For Geophysical and Geochemical Exploration

基　　金：江西省教育厅科技项目(GJJ12376);放射性地质与勘探技术国防重点学科实验室开放基金项目(2011RGET02)

摘　　要：相山盆地位于华南异常带,区域重力异常和区域磁异常特征明显。这里利用布格重力异常、磁异常进行Euler3D反演和信号分析方法,对相山盆地重力和磁数据进行处理,得到相山盆地构造走向、倾向和重力、磁性基底深度图。研究认为:1山砀、蔡坊一带存在构造断裂带,以东西走向为主;2相山主峰存在两个火山喷发中心;3盆地有3条基底深度凹陷带,将盆地划分为两个基底隆起块。在此基础上,通过研究断裂构造、基底深度、矿集区,提出山砀-蔡坊地区为有利成矿部位的结论。The Xiang shan basin is located in southern anomaly,regional gravity anomalies and regional magnetic anomalies are evident.In this paper,3D Euler inversion and signal analysis methods are used,via Processing the gravity and magnetic da-ta of Xiang-shan basin,we get it’s tectonic strike,dip and gravity,magnetic depth to basement map.Conclude that：① Moun-tain Shan Dang-Cai Fang exist a tectonic fault zone to the east-west oriented;②two volcanic channel are exist in Xiang-Shan peak;③ there are three belts named a,b and c,whose base are deeply Sunken,dividing the basin into two basement uplift block.On the following basis,through researching structure of faults,depth to basement,ore district,we raise the view that the Shandang – Caifang area is a favorable ore-forming area.

关 键 词：Euler3D 反演 信号分析 相山盆地 断裂构造 基底深度 

分 类 号：P631.1[天文地球—地质矿产勘探] P631.2[天文地球—地质学]