地质学报Issue(4):658-668,11.
利用重磁资料研究南岭于都-赣县矿集区花岗岩与断裂分布特征
A Study of the Granite and Faults Distribution Based on Gravity and Magnetic Data Obtained in Yudu-Ganxian Ore Concentration Area of Nanling
摘要
Abstract
The ore area of Yudu-Ganxian is an concentration area with better prospecting potentiality for tungsten,gold,silver,copper,lead,zinc deposits in Eastern Nanling Range.Because the granite and mineralization relate closely,and the fault structure often follows rock- and ore- controlling structures. Therefore,the system exploration the granite and faults distribution in this area is one of the key problems for further prospecting.In this paper,we deduced the granite and faults distribution characteristics by a comparative study of the distribute characteristics correspondence among the gravity and magnetic field, exposed-granite and exposed-faults in this area.The result indicates the granite distribution obtained by gravity data reaches better result and is of high efficiency,while the magnetic data can only be used for magnetic granite inference,and the results of hidden granite body size is about 2 times than the exposed granite.We inferred nine first-order and forty nine second- order faults by the gravity and magnetic data. The study result of granite body and faults distribution shows that the faults play a major role in controlling the development of granite. These results above provide geophysics ground to further investigations for deep rock and ore controlling structures in concentrated region.关键词
于都-赣县矿集区/重力异常/磁力异常/花岗岩/断裂Key words
Yudu-Ganxian ore concentration area/gravity anomalies/magnetic anomalies/granite/faults引用本文复制引用
刘金兰,赵斌,王万银,李建国,冯旭亮,周新鹏,王云鹏..利用重磁资料研究南岭于都-赣县矿集区花岗岩与断裂分布特征[J].地质学报,2014,(4):658-668,11.基金项目
本文为国家“深部探测技术与实验研究专项”(SinoProbe)第3项目“深部矿产资源立体探测技术及实验研究”第3课题(SinoProbe-03-03)资助的成果。 ()