Metallogenic geological characteristics and prediction of the gold deposits in east part on northern margin of North China Platform
The studying area,whose structure is complicated and where the major and deep faults in EW trend paleo-basement structure host a Au-Cu-Pb-Zn-Ag polymetallic belt,is located at the intersection part of northern margin of North China Platform and Daxing'anling geosynclinal folded system in Inner Mongolia.Most gold deposits distributed in Archaean or Proterozoic metamorphic rocks system, the majority of which located on the margin of ancient basement uplift or in the inside controlled by fault structures.Au-bearing quartz vein type,structure-broken altered rock type and magma hydrothermal vein type are the main metallogenic types in this area.About 378t gold resources for potential prospecting are predicted,as well as two metallogenic belts and eight ore-forming areas are divided.