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Analysis On Ore Gold Mineralization Mharacteristics And Prospecting Potentiality Of Fenghuangshan In Daxinanlin

Posted on:2013-07-11Degree:MasterType:Thesis
Country:ChinaCandidate:B Z JiangFull Text:PDF
GTID:2230330395459319Subject:Geological Engineering
Abstract/Summary:PDF Full Text Request
Fenghuangshan gold deposit is located at the northern end of the East PointGreater Khingan Range, Xingan Ling-Inner Mongolia geosynclinal fold region inthe southern margin of Tahe Eergu’Na block transition zones in Derbuganmetallogenic belt, which belongs to the section of the southeast margin of. YuXinghua ferry group orebodies in the metamorphic rocks, the main lithology is alteredamphibolite, mylonitized granite, granite gneiss, schist has found gold mineralizedalteration zone2. The mineralization geological conditions, prospecting marks, hasgood prospecting potential.The region is exposed the main strata are Proterozoic Xinghua ferry group, lowerOrdovician macular Ridge Group, camphor, groups and quaternary. District magmaticrock in mining area of North East Main outcropping, work area magmatic rocksmainly for Variscan gabbro, granite, white hill granite, granodiorite. Dike diorite,quartz vein and other veins. Metamorphic rocks are mainly: gneiss, schist, granulite,amphibolites etc.. The main structure for fault fold structure, time. Fracture structuremain east-west Lantau Peak fault. Fold structure for Lantau Peak reversed anticlineoblique, core exposed Xingan bridge group, the wings are as Huma River group.Mineralized alteration zone in Hing Wah ferry group metamorphic rocks of theore bodies, to close, the main lithology is altered amphibolite, mylonitized granite,granite gneiss. Alteration types mainly pyritization, silicification, arsenopyritemineralization, kaolin, carbonation, epidotization, a small amount of brown ironmineralization. Is to find2alteration zone3gold ore. I-1gold ore body thickness of10.3m, the average grade is7.70×10-6, the highest grade of18.42×10-6; ore to theNorth East, occurrence is130°angle55°, the ore bodies are present as lenticular;ore-bearing rock is mainly mylonitization granite. I-2gold ore body thickness of1.5m, the average grade is7.59×10-6, the highest grade of10.42×10-6; North East tothe occurrence of ore bodies,140°angle65°, the ore bodies are present as lenticular.The ore-bearing rocks are mainly altered amphibolite. No.2orebody ore body length80m, width4.0m. The thickness of4.0m, grade is(0.59-5.72)×10-6, the highest is6×10-6, the average grade is3.41×10-6. Ore to theNorth East, occurrence is135°angle55°, the ore bodies are present as lenticular;ore-bearing rock is mainly fractured zone (the original rock is granite gneiss, schist).According to the deposit that has been discovered (point) ore deposit geology,geophysics, geochemistry, the area of main orebody of peripheral soil anomaly withIP intermediate gradient anomaly evaluation, drawing out for further prospectingtarget area2, polymetallic metallogenic prediction of area8, as the follow-up surveywork point direction and suggestions. From the existing research results, Lantau Peakgold mine area and periphery has good ore prospects, is expected to find a mediumscale gold deposits or other types of lead zinc deposit.
Keywords/Search Tags:characteristic of gold deposit, geochemistry, geophysical characteristics, metallogenic condition, prospecting potential, Lantau Peak gold mine area
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