Exploration and prospecting of gravity and magnetic deep structure in Erda-ogou gold deposit,Liaoning Province
Through qualitative analysis of gravity and magnetic anomalies and calculation of gravity and magnetic three-dimensional inversion physical property model,the Erdaogou gold mining area and its surrounding deep structure are explained.The mining area and its periphery are volcanic faulted basins with granite basement.The faulted basin consists of two relatively independent Erdaogou volcanic depression and the northern Dabigou volcanic depression.The spatial relationship between Erdaogou gold vein,rock mass and deep fault is studied based on regional structure and known mineral geological data.It is concluded that Erdaogou gold vein is related to late Yanshan acid granite,and the main ore-controlling vein is controlled by volcanic basin and NE-trending deep fault.The origin of Erdaogou gold deposit is in the thick and relatively closed volcanic basin,the heat source and material of deep acidic rock mass are enriched and metallogenic near the fault structure of volcanic depression through deep structural channels.According to the research results of the main gold vein genesis of Erdaogou gold deposit,three favorable areas for ore prospecting are proposed:Erdaogou volcanic depression,Dabigou volcanic depression and bedrock uplift area.
Erdaogou gold depositdeep tectonic metallogenic researchgravity and magnetic deep structure interpretationgravity and magnetic three-dimensional inversion
NETL
NSTL
万方数据
