METALLOGENIC EVOLUTION AND MODEL OF MANZHOULI-XINBAERHU METALLOGENIC PROVINCE
(1.Being Institute of Geology for Mineral Resources, Beijing 100012, China;
2.No. 706 Party, Nonferrous Metals Geological Exploration Bureau of Heilongjing Province)
2.No. 706 Party, Nonferrous Metals Geological Exploration Bureau of Heilongjing Province)
Abstract: This area is a superlarge potentiality metallogenic province of multimetal resource, belonging to Ergun accretionary fold system of early Caledonian. The regional basement (Neoproterozoic-Lower Cambrian Series) is the outer extent of the Siberian craton margin, and the metallization in this area was affected intensely by Pacific plate tectonics. The NE trending Ergun-Hulun deep-seated fracture controls the giant volcano-magmatic activty and mineralization in this area. NW cross trending tenso-shear fractures control the formation of ore cluster in this area. The major types of ore deposits in this area are porphyry type, subvolcanic hydrothermal vein type and skarn type. They are the products of different depths and environments as genetically-related, which can be collectively regarded as porphyry copper-multimetal metallogenic series.
Key words: Manzhouli metallogenic province metallogenic evolution metallogenic model porphyry