| The Cu-Mo Polymetallc Deposit of Daxing'anling is located in the mineral foreground area, baikalu south slope of gold and polymetallc mineralization II,the north of Derbugan metallogenic belt,the bordering area between the Eerguna block and the volcano rock belt.The exposed strata in the study area are mainly Neoproterozoic-Lower Cambrian Wo Group ditch group and regent auspicious net group,the volcanic rocks mainly include microcrystalline schist,slate,phyllite,marble,acid lava and variable acid volcanic rock with thin layer of sand and gravel,etc.The Mesozoic Cretaceous Guanghua group,which mainly consisting of acid volcanic rock.The intrusive rock are the subvolcanic rock in Lower Cambrian,including granite,granite porphyry and diorite porphyrite.Orebodies and mineralization occurs mainly in the large net formation,lower Cambrian granitic rock crushing zone and mylonitized zone,the rock alteration and mineralization phenomenon is more widespread and more obvious especially in the net formation and the lower Cambrian granites in the contact zone.The mineralization is closed related to the alteration,especially to the mylonization,greisrnization,quarz rock, silicification,sericitization, carbonatiza-tion,epidotization and beresitization.The mineralization is mainly controlled by the NW-trending ductile shear zone and the North East to the river Ma Lan River-Pangu river fault,The crack of east-west and north--west and the development of low order fracture provide a channel and a place of occurrence to the ore fluid.Geological mineral resources in the area are found to have an important geological environment,which is an important geochemical exploration anomaly and favorable mineralization.Different levels of mineralization and ore body like Cu,Pb,Zn,Fe,Au and Ag were found by the surface trenching work,this condition shows that the area has good ore-forming geological conditions.The tectonic magmatic activities in the study area have the characteristics of multistage and multi cycle,In particular,the tectonic movement in Yanshan is more frequent and intense,and it plays a decisive role in the mineralization.Through strengthening the summary of the characteristics like Geological and mineral background,Ore forming geological condition,geochemistry and geophysics of the study area.Further to determine the genetic type of the deposit,Ore forming condition and the range of reconnaissance,In order to provide theoretical basis for further geological prospecting work in this area. This paper mainly studies the regional geology and the Geological characteristics of mining area. Carrying out a geological study on the anomaly of Hs-35 by means of the comprehensive investigation methods like geophysical and geochemical prospecting.After the research achievements are as follows:1.Basically finding out the distribution of stratum,intruded rock,extensive rock and metamorphic rock in this area.For the metallogeny,mineral species and types have a preliminary understanding.Having a certain guiding sense to the work in the future.2.Discovery and derlineation of copper ore body 8,Molybdenum ore body 3,zinc mineralization body 1,Ore body 1,copper and mineralization 1.3.According to the metallogenic geological background characteristics,combined with the ore-controlling factors and metallogenic conditions, mineral combination, preliminary think copper,molybdenum,zinc and lead belongs to the medium low temperature hydrothermal type.The ore prospecting should be in the ductile shear zone and the magnetic anomaly.More attention should be paid to sericitization, actinolitization, carbonatization, greisenization, sericitization and other indicators in the silicified mylonite zone.In these areas often have ore(chemical) body accompanied appear. |
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