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Geological Setting Of Ore-forming Process Of Are-Tong Chang Gou, Shangri-La Yunnan Province

Posted on:2014-05-12Degree:MasterType:Thesis
Country:ChinaCandidate:C WangFull Text:PDF
GTID:2250330398994425Subject:Mineral prospecting and exploration
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Are-Tongchanggou region is located northwest of Yunnan Province, is a "Sanjiang metallogenic belt in the middle," in Southwest Sanjiang tectonic belt of igneous Yidun southernmost island arc, its eastern and southern Ganzi-Litang suture zone, the west is Xiangcheng-Gezan deep fault. Study Area Late Paleozoic Permian and early Mesozoic Triassic strata is developed, the slave beep stratum cell, cell Sanjiangkou strata, in Zan-Shek Kwu stratum cell, which Beiya group Thum ditch group, Niru group, Kazakhstan is an important industrial group with seam; Permian magmatic rocks with three basalt; intrusive rocks were small strains, dikes, and other branches scattered rock outcrop lithology from ultrabasic-acidic have, where Aret quartz diorite, pepper Ping monzonite porphyry copper-molybdenum mine with closely related; Bengge syenite porphyry, basalt Thum ditch group may Mello rhyolite porphyry with gold relations close; subvolcanic rocks, volcanic rocks were mafic Thum ditch distributed set of local; regional metamorphic rocks of late Triassic low temperature dynamic metamorphism, local carbonate recrystallization.Typical areas of copper molybdenum minerals, gold, gold polymetallic ore, lead and zinc, have been found pepper Ping, Ming rent, wood Road and other deposits, mine sites; regional development ophiolite construction, construction of basic volcanic rocks, carbonate build, clastic rocks, they differ in the geological background. Through the construction of different geological background analysis, comparison zone mineralization, ore-controlling factors summed up thus prospecting guidance.Ore-controlling factors have the following characteristics:(1) ore formations, Triassic carbonate build-up, clastic strata of mineral control is extremely obvious, inheritance zone ("Sanjiang metallogenic belt") characteristics;(2) structural control, decided to build a form, but also determines the lead ore, ore transport, ore.(3) magmatic ore, decided to build ophiolite mafic volcanic rocks formed construction; also determines Bengge, wave light gold, copper and molybdenum mine pepper Ping formation; magmatic rocks are mostly direct source of material, but also for the heat fluid power activities.Through the construction of rock, geological setting, ore-controlling factors conducive to a comprehensive discussion of mine. Delineated three most prospecting areas, a potential prospecting areas:Long Light-Wood Road-Bengge-Ming Rent-Wen Lang area looking for the most promising Pb-Zn metal deposition-epithermal deposit; wave light-thorn slag Agger-Bengge-chu Bo-Cao card along with the greatest potential looking Au polymetallic magmatic hydrothermal ore deposits; Ma Yakou-pepper Ping-under Road Valley cattle-may Mello-Dongba area most has the potential to find Cu-Mo polymetallic skarn, porphyry, epithermal deposit; give Dandan Song-wrong card-Chubo-Annan potential area looking for Pb-Zn-Sn-W-Au and other metal thermal liquid-type deposits.
Keywords/Search Tags:Shangri-La, Are, Tongchanggou, geological background
PDF Full Text Request
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