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A Study Of Metallogenic Geological Features And Structure Ore-controlling Research In The Linglong Gold Deposit Of Shandong Province

Posted on:2013-12-27Degree:MasterType:Thesis
Country:ChinaCandidate:C LiuFull Text:PDF
GTID:2250330422958034Subject:Structural geology
Abstract/Summary:PDF Full Text Request
LingLongjin gold mine field d is located in northwest jiaodong of zhaoyuan region, the position oftectonic structures is belonged to the north China platform, the middle part of northern uplifts thejiaodong famous glue and takes through the middle of the northwestThis article is in full use of previous data and combined with the field research, starting from theregional structure which is combined with the earth’s physical characteristics, Through the studyof the ore deposit geology characteristics, rock geochemistry, ore-controlling structure,mineralization and other aspects,and analyze the structure conditions from the point of the mantlehot column multilevel evolution and the characteristics of ore control characteristics werestructure,then establish the Ore control mode of LingLongjin gold mine field, Initially speculateprospecting direction. The main reorganizations as follow:1. The main ore-control factors of LingLongjin gold mine field is the fracture structure for orecontrol, there are many faults in this area. According to the effect and scale of fracture, it candivided intoⅠ, Ⅱ, Ⅲ level ore-controlling fracture. Ⅰ level controls the fracture of the goldveins field mineralized alteration types, spatial form distribution, mineral assemblages andmineralization depth change regularity. Ⅱ level controls the sub-tissue section of the rich orevein.Ⅲ level controls mineral field fracture in the output of the ore body location, form in, form,etc.2. According to the LingLongjin gold mine field in the middle of the main faults, observed bysupreme fracture is associated, And in the main faults, the footwall mineralized alteration obviousand major veins, In quartz vein there is also galena in mineralization and has broken serious; inthe upper plate have been obvious mineralization, far from faulting footwall in the mineralizedalteration gradually become weak, and the bedrock is more broken. In the process of the mainmineralization erosion into the green shade, pyrite petrochemical, sericite change and so on. It cansay that in the veins of main fracture surface plate boundary for the world, the degree ofmineralization is weak-strong-no.3. The mantle hot the evolution of the third column multistage tectonic units GuoJiadian curtainstructure is the main branch ore-controlling structure, peripheral detach from a series ofdevelopment with toughness brittle shearing structure.4. In the Yanshan movement period northwest area into the metallogenic glue to Lai yang-lacymantle and thermal column and its peripheral Guo Jiadian, QiShan, PanShandianof thedevelopment of the structure were evolutionary stages, And the corresponding form a series ofNorth east to supreme detach from the north west to take and slippage of the cross a fracture(which can have certain space sex),to be affected by the shaft ductile shear zone’s deep influence,large magmatic activity begins, and linglong noise rock begins to mass invasion, Later the hotliquid containing ore in new fissure along the migration process up and surrounding rockreplacement happens altered role,along with related tectonic weak penetration and gatheredmineralization. 5. LingLongjin gold mine deep field has potential prospecting prospects, becauseof the main fracture existence, Ore fluid migration from deep, there existsmineralization on both sides of the shallow part in the main fracture. According to thetheory of tectonic mineralization infer that there must be a large ore body exists in thedeep.
Keywords/Search Tags:Ore-controlling
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