本文選題：青海 + 東昆侖�。� 參考：《成都理工大學(xué)》2017年碩士論文

【摘要】：針對東昆侖五龍溝礦田紅旗溝礦區(qū),基于導(dǎo)師團隊早期研究和既有勘查成果,通過野外地質(zhì)調(diào)查,礦床地質(zhì)特征解析,較系統(tǒng)分析了不同層次構(gòu)造變形對巖漿侵位、礦化蝕變發(fā)生、礦體產(chǎn)出的控制特征,得出如下認(rèn)識:五龍溝礦田受控于格爾木-五龍溝變形變質(zhì)核雜巖構(gòu)造,經(jīng)歷了早期韌性變形、晚期脆性變形。早期韌性變形,可分為韌性和韌-脆性兩個變形階段。韌性變形階段具有左行正滑的特征;脆-韌性變形階段,可進一步分為三個亞階段,具有左行正滑→左行逆沖→右行正滑的特征。晚期韌脆性-脆性變形階段,可分為三個亞階段,具有右行正滑→左行逆沖→右行正滑的特征。多期多階段脆-韌性、韌脆性變形發(fā)展,形成了礦區(qū)北西向為主構(gòu)造線的網(wǎng)狀斷裂格局,其中,北北西、北北東、近東西向斷裂,為主干斷裂不同動向演進過程形成的次級斷裂。核雜巖構(gòu)造及早期脆韌性褶斷構(gòu)造控制了早期巖基的侵位和空間分布;多期不同動向的韌脆性—脆性變形的褶斷變形構(gòu)造,一方面,控制了不同類型后期巖枝、巖脈、巖株的侵位和空間分布,另一方面,使早期形成的大型巖體遭受變形破壞。表殼以北西向褶斷為主干的網(wǎng)狀斷裂褶皺系統(tǒng),與深部拆離逆沖推覆斷裂,聯(lián)合形成包括紅旗溝金礦床在內(nèi)的五龍溝金礦田的礦化控制系統(tǒng),控制了礦化蝕變帶的形成,主干斷裂多期不同動向活動,衍生不同產(chǎn)狀次級配套斷裂,不同時期不同配套斷裂及主干斷裂,不同部位擠壓、伸展?fàn)顩r不同,伸展舒張斷裂構(gòu)成當(dāng)期容礦/液構(gòu)造,最終造成北西向、北北西向、北北東向及近東西向斷裂均控制礦化蝕變帶。金礦化體嚴(yán)格產(chǎn)于礦化蝕變帶中,由于控制礦化蝕變的不同級次斷裂空間分布的規(guī)律性,金礦體的產(chǎn)出具側(cè)列再現(xiàn),尖滅再現(xiàn)的分布規(guī)律,少數(shù)沿斷裂帶間貫通的剪節(jié)理在褶皺形成的虛脫部位產(chǎn)出。
[Abstract]:In view of the Hongqi gully mining area in the Wulong Gou mining field in East Kunlun, based on the early study of the tutor team and the existing exploration results, through the field geological survey and the geological characteristics of the deposit, the characteristics of the magma emplacement, the mineralization and alteration and the control of the ore body output are systematically analyzed. The following understanding is that the Wulong gully ore field is controlled by the grid. The deformation metamorphic core complex structure of the Er Mu Wulong gully has experienced early ductile deformation and late brittle deformation. Early ductile deformation can be divided into two stages of ductile deformation. Ductile deformation can be divided into ductile and ductile brittle phase. The ductile deformation stage has the characteristics of positive slip in the left line; the brittle ductile deformation stage can be further divided into three substages, with left horizontal sliding, left thrust and right The stage of late ductile brittle brittle deformation can be divided into three sub stages, with the characteristics of right sliding, left thrust and right straight slip. The multistage and multistage brittle ductile and ductile brittle deformation developed and formed a network fracture pattern of the North West to the main tectonic line in the mining area, in which the North NNW, the north to East, the near east-west fault, the main fault. The secondary faults formed by the evolution of different trends of the dry fracture. The structure of the nuclear complex and the early brittle ductile fault structure control the emplacement and spatial distribution of the early rock foundation, and the pleat and broken structures of the brittle brittle deformation of many different trends, on the one hand, the emplacement and spatial distribution of different types of rock branches, veins, and strains of rock are controlled. On the one hand, the early formation of large rock mass is subjected to deformation and destruction. The reticular fracture fold system which is the main trunk of the North West fold fault, and the deep detachment and thrust nappe fault, combine to form the mineralization control system of the Wulong gully gold field, including the Hongqi gully gold deposit, and control the formation of the mineralized alteration zone, and the main faults are different in different periods. There are different secondary supporting faults, different supporting faults and main faults in different periods, different parts extrusion and different extension conditions, extensional diastolic faults constitute the current stage of ore bearing / liquid structure, and eventually lead to northwestern, North NNW, North NNE and Near East faults control mineralized alteration zone. The gold mineralization body is strictly produced In the mineralized alteration zone, due to the regularity of the spatial distribution of different grading faults in the mineralization alteration, the production of gold deposits is reproduced in the side column, the distribution of the apex and the distribution of the distribution, and a few of the shear joints through the fracture zones are produced in the void part of the folds.

【學(xué)位授予單位】：成都理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：P618.51

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