Da Hinggan Mountains area is one of the most important tin metallogenic belts in China,and the Wusuturu ar-ea is located in the south of the Da Hinggan Mountains,on the accretionary orogenic belt between the Siberian Plate and the North China Plate,belonging to the Tuquan-Linxi Hualixi period and Yanshan period iron(tin),copper,lead,zinc,silver,nio-bium-tantalum metallogenic belt.In order to find out the metallogenic regularity and prospecting potential of this area,by com-prehensively carrying out 1∶50000 mineral geological survey,1∶50000 stream sediment survey,1∶50000 high-precision mag-netic survey and 1∶25000 soil survey,1∶10000 geological grass survey,1∶10000 geochemical profile survey,1∶10000 IP mid-ladder profile survey,IP sounding,trenching and other working methods,the metallogenic geological characteristics and metallogenic potential are studied.The results show that:① The area is dominated by endogenous metal deposits such as tin,lead,zinc,copper and silver,and 21 new ore(mineralization)points have been discovered;② There are 438 geochemical sin-gle element anomalies and 57 comprehensive anomalies by 1∶50000 stream sediment survey;③ 34 large scale magnetic anom-alies were delineated by 1∶50000 high-precision magnetic survey,and most of the mineralization points in the area were in the gradient belt between the positive and negative magnetic anomalies,which was a favorable location for searching for polymetal-lic ore;④ The genetic types of the deposit are hydrothermal type and contact metasomatism type,the main mineralization peri-ods are Hualixi mineralization period and Yanshan mineralization period,and Yanshan mineralization period is the main miner-alization period of tin polymetallic deposit;⑤ The distribution of mineral resources is strictly controlled by geological structure,rock mass and strata,and the horizontal distribution is distributed in a band to northeast,with a total of 5 ore belts from north to south;⑥ 16 prospecting targets of various types were submitted,including 7 prospecting targets with tin as the main mineral or associated mineral.
tin polymetallicgeophysical explorationgeochemical explorationmetallogenic regularityprospecting potential
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