Lead & Zinc Ore Prediction In Yichun-Yanshou Metallogenic Belt Of Heilongjiang Province

Yichun–Yanshou geosynclinal fold system is a part of Xiaoxing'anling- Zhangguangcai metallogenic belt, which belongs to the suture of Siberian plate (southeAst edge) and bureya - Jiamusi plate. In Yichun-Yanshou region within the fold system distributing the Lower Paleozoic in Lower Paleozoic strata favorable lead-zinc mineralization, NE, NNE, NNW double folds and regional-bAsed faults , Caledonian, Indosinian mAgmatic activity and mineralization are in relatively close relationship. Yichun– Yanshou geosyncline fold system which hAs a large number of lead-zinc deposit, is a very important metallogenic belt.Through a comprehensive study to the formation, structure, mAgmatic rocks of the region, the formation mechanism of lead-zinc deposits and the controlling factors are determined. BAsed on stratigraphic characteristics, regional structure ,evolution of the situation, and statistices on ore formation and igneous rocks close to the mineralization, comBined with the study to Typical deposit, to identify characteristics of mineralization and the geological conditions of geological prospecting signs. Results show that the majority of the study area lead and zinc exist in the Formation of Qianshan Group, Wudaoling group,Xiaojingou Group, and is closely related to the middle Caledonian and late Indo-China era, which are identified As geological characteristics of the area.Establish the relationship between lead&zinc and different elements through the research of the latest survey results of geochemical studies. Compare the distribution of lead-zinc deposits with nine elements'distribution, the results show that the deposits are closely related to lead and zinc elements which can be used As predictor variables; geochemical anomaly of Bismuth and Arsenic, in partiCular Bismuth element, are closely related to larger-sized lead-zinc deposits; several other elements are ineffective.Fully use the known mineral information, analyse the known deposits (points) distribution, and delineate key belts.With the method of GIS-bAsed integrated geological information deposit Model, delineate predicted lead&zinc area in Yichun– Yanshou region,with geological features As the necessary conditions while the geochemical anomalies of lead,zinc,Bismuth,Arsenic As favorable signs, referring to key belts.