| Since the founding of Xing'anqiao Iron Mine in the 1960 s by aeromagnetic anomaly inspection,it has been considered as a magnetite-quartz metamorphic iron deposit,which is in turn doubled as a typical deposit in the northern part of the Greater Xing'an Mountains(the Erguna block)By the attention.Xing'anqiao iron ore deposit is located in The Great Khingan metallogenic belt.Although the deposit was found earlier,but less comprehensive study of the deposit,the predecessors on Xing'anqiao iron ore geological characteristics,metallogenic geological conditions and genesis and other aspects of the deposit The study has not been systematically summarized,these factors have limited the scale of the deposit to increase reserves,thus summarizing the geological characteristics of this type of deposit,geophysical characteristics,analysis of metallogenic geological conditions,metallogenic rules and prospecting signs The systematic study of the system has important theoretical and practical significance for guiding the further exploration of this type of iron ore deposit.The Xing'anqiao iron deposit is hosted by the Xing'anqiao Formation of the Hinghua Ferry Group(Lower Proterozoic),with Late Cambrian granodiorite and Late Triassic-Early Jurassic monzonitic granite and granodiorite.The mine is located in the forward zone of the Hanjiao Nappe structure and is generally controlled by a series of EW faults of high angle thrust(ramp).Mainly revealing the Lower Paleokaryang Ankang Formation in the Lower Proterozoic Xinghua,the main rock types are marble,dolomitic marble,diopside feldspar schist,hornblende feldspar schist,dark plagioclase gneiss,Two mica plagiogneiss,mica quartz schist,mica feldspar quartz schist.The south boundary is limited by faults,and the north boundary is limited by a set of east-west faults.On the south side,Late Triassic-Early Jurassic monzonitic granite and granodiorite are exposed,while Late Cambrian medium-and medium-grained granodiorite are mainly exposed on the north side.The authors analyzed the metallogenic geological background of Xing'anqiao Iron Mine in detail,comprehensively studied the geological characteristics and geophysical characteristics of this type of deposit,summarized and analyzed the geological conditions related to metallogenesis,summarized the metallogenic regularity of this deposit And Prospecting Indicators: According to mineralization geological conditions and geology,geophysics and other ore prospecting information,the prospecting direction of the periphery of Xing'anqiao iron mine is determined,and the prospecting potential of the periphery of Xing'anqiao iron ore deposit is predicted.The main achievements are as follows:The distribution and distribution of the strata in Xing'anqiao formation of iron ore deposit are divided by geologic profile,and the type and distribution of the rocks and the location and range of the rock are identified.Comprehensive utilization of geophysical prospecting and drilling verification results,analysis of the corresponding relationship between magnetic anomalies and iron ore bodies: a total of 7 high magnetic anomalies delineated by the ground work to determine the magnetic anomaly will be-M-2012-05 magnetite.It is concluded that the prospecting direction in this area is roughly as follows: the Xing'anqiao Formation of Xinghuadu Formation,Xing'anqiao Formation,the anomaly of aeronautic anomaly is beaded,banded or banded,and the trend is consistent with that of the strata,with a high Magnetic anomalies on the ground.As a major prospecting symbol..The system collects the work report of Xing'anqiao Iron Mine and at the same time summarizes the metallogenic regularity of Xing'anqiao iron ore deposit with the achievements made in the current census and predicts the metallogenic production in its peripheral area.In the study area,it is predicted that there will be 2,290,000 tons of iron resources in the four ground magnetic anomalies.and 5 ore prospecting areas are optimized in the periphery of the study area. |
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