地质学报Issue(4)：478-495,18.
安徽庐枞矿集区大地电磁探测与电性结构分析
Conductivity Structure of the Lujiang-Zongyang Ore Concentrated Area, Anhui Province:Constraints from Magnetotelluric Data
摘要
Abstract
The Lujiang-Zongyang ore concentrated area is one of the most important ore concentrated areas in the middle and lower region of the Yangtze River metallogenic belt of China.Five magnetotelluric (MT ) sounding profiles have been conducted to understand the relationship between the metallogeny and petrogensis,and the deep conductivity structure.The underground conductivity structures extending from the shallow surface down to 10 kilometers clearly show the boundaries of the buried faults.It also shows the duple structures of the Luj iang-Zongyang volcanic basins as well as the characteristics of the Dabie orogeny,the foreland depressed basin and the exposed basements.The electrical resistivity anomalies show that the diorite porphyry hosted copper deposits in Shaxi area is the Dabei orogenic affinity which is different from the volcanic basin in magma evolutionary.The two-dimensional inversion results on the three NW-SE and the two NE-SW directed profiles shows that the NE-SW directed conductivity structures are dominant in this area.Inferred from the characteristics of tectonic units which controlled by NE-SW trending faults,we find that the Yanshanian structures was inherited from the Indosinian structures.关键词
庐枞矿集区/火山岩盆地/大地电磁/二维反演/电性结构/构造格架/地质演化Key words
Lujiang-Zongyang ore concentrated area/volcanic basin/magnetotellurics/2D inversion/conductivity structures/tectonic structures/geological evolution引用本文复制引用
肖晓,王显莹,汤井田,周聪,王永清,陈向斌,吕庆田..安徽庐枞矿集区大地电磁探测与电性结构分析[J].地质学报,2014,(4):478-495,18.基金项目
本文受国家科技专项“深部矿产资源立体探测技术与试验（SinoProbe-03-04）和国家自然科学基金青年基金（编号41104071）资助。 （）
