Comprehensive Metallogenic Prediction Of The Shenglilinchang Area In The Southeastern Xiaoxinganling

Shengli farm area is in the southeast of Xiao hinggan mountains. This paper is based on1:50000regional geology and mineral resources survey, comprehensive analyzing thecharacteristics of geology, geophysics, geochemistry and remote sensing, finding the promisingprospecting areas by the useful comprehensive metallogenic forecasting methods according tometallogenic background and ore-controlling factors in Shengli farm area. It points out thefurther exploration direction, and gets some understandings as follows：1. There are large intrusive bodies in the Shengli farm area, magmatic activity was verystrong. There are mainly the Permian monzogranite, granodiorite, the Late Triassicmonzogranite and syenogranite, and the Cretaceous monzogranite and granite porphyry. TheLate Triassic monzogranite and the Cretaceous granite porphyry are closely related withmineralization.2. Most magmatic rocks are high silicon and high-alkali that belongs to high-K calc-alkalineseries by researching of the petrochemistry and geochemistry. Higher differentiation indeximplies that magmatic rocks had experienced completely (sufficiently) crystallizationdifferentiation, and its genetic type is highly fractionated I-type granites.3. There are a lot of faults in the area. SN deep fault structures control the distribution ofmagmatic belt, and it is transmitting ore structure. NW and NE faults control regional oredeposits location, their junction position is the potential sit for ore formation.4. It summarizes the metallogenic prediction information of geological, geophysical,geochemical and remote sensing, dividing6grade Ⅲ metallogenic prospect areas on the1:50000regional geological map. Metallogenic prospect areas are mostly located in the contact zones ofthe Triassic monzogranite and the Cretaceous granite porphyry. The Permian hornblende gabbrocontains more Cu, Pb, zinc and other elements; it can provide metallogenic material formineralization; the Yanshanian intrusions provide hydrotherm and heat source for the migrationand enrichment of metallogenic material.5. On the basis of1:50000metallogenic prediction, and it conducts the1:20000comprehensive information metallogenic prediction in the most potential exploring prospects ofBaishan linchang. There is a14meter wide alteration zone in the favorable metallogenic belt ofthe prospective predictive area by using exploratory trench engineering. Alteration type isbelonged to monzogranite that is silicified strong, star-like and disseminated fine-grainedpyritization. At last it is worth to do further work.