The Structure of Luzong Ore District and Its Metallogenic Indication from Gravity and Magnetic Information
详细信息
- 责任者：Liu Yan (Key Laboratory of Metallogeny and Mineral Assessment ; MLR ; Institute of Mineral Resources ; Chinese Academy of Geological Sciences ; Beijing 100037 ; China ) ; Lv Qingtian
- 刊名：Acta Petrologica Sinica
- 出版年：2012
- 卷期：28(10)
- 关键词：矿集区 ; ore-concentrated area ; 重力异常 ; gravity anomaly ; 磁异常 ; magnetic anomaly ; 长江中下游成矿带 ; Metallogenic Belt of Middle and Lower Reaches of Yangtze River
- 页码：p.3125-3138
- 图表：illus., 3 tables, 45 refs.
- 分类号：1600
- issnNo：ISSN1000-0569
- isbnNo：CN11-1922/P
摘要
As an important part of multi-metal concentration metallogenic belt in the Middle and Lower Yangtze River, the deep structure and mineralization process of Luzong ore district have been concerned.This paper carries out the objective process method with the existing gravity and magnetic data,such as matching filter,analytical continuation and derivation etc.Based on the data,combined regional geology and mineral distribution of Luzong ore district,the authors draw some conclusions.Luzong ore district includes four metallogenic belts,which composed by Tanlu fracture belt,Peigang-Zhuqiao fault,Luohe fault and the Yangtze River fracture,and its general trend extends southwest to northeast. As ore deposits diversification,deposits and mineralization show belt and circular characteristics distribution.Volcanic tectonic and volcanic magma activity restricts the distribution of iron,sulfur,and copper(gold) ore bodies,and basement uplift and fracture of Luzong ore district play an important controlling role.The residual gravity and magnetic anomalies after anomaly separation are the important comprehensive information signs to look for rest of iron ore.The superposition area of gravity anomaly and low-pitched magnetic anomaly in high background still has large prospecting potential.