Geological Characteristics and Prospecting Criteria of Ag-Pb Polymentallic Deposit in Highland 1017,Inner Mongolia

Ag-Pb polymetallic mining area of highland 1017 is a kind of magmatic hydrothermal Ag-Pb polymetallic deposit found in the northeast part of Xilinguole league,Inner Mongolia.Large-scale geological survey and comprehensive research for it are in process.The major source beds are medium-coarse and medium-finegrained biotite adamellite of late Yanshan era,the folds and faults structure provide spaces for the polymetallic mineralization.The important indicators of finding Ag-Pb polymetallic ore include structure fracture zone and tectonic breccia inrocks,the geological body with a variety of altered and mineralized,the polarizability anomaly area delineated by the geophysical IP intermediate gradient,and the low resistivity geological body delinaeated by controllable source audio-frequency magnetotelluric sounding.There are the ore-controlling factors for large or medium Ag-Pb polymetallic ore in highland 1017.