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Analysis Of Ore-controlling Structure And Prediction Of Deep Prospecting In Hatu Gold Deposit,Xinjiang

Posted on:2020-01-09Degree:MasterType:Thesis
Country:ChinaCandidate:Y S E E R S KaFull Text:PDF
GTID:2370330590454649Subject:Mineralogy, petrology, ore deposits
Abstract/Summary:PDF Full Text Request
Since the prediction of hidden gold deposits is a major problem faced by countries in the world in exploration work,relevant theories and methods have become the frontiers and hotspots in the field of mineral exploration,ore deposits and metallogenic prediction at home and abroad.The Hatu Gold Mine is in such a situation,and a lot of work has been done on the research of the Hatu Gold Mine,a group of predecessors engaged in geological work,including basic geological surveys,geochemical research,hydrogeological research,and areas.Research on structure and ore-controlling structures,remote sensing technology alteration information extraction and genetic mineralogy,but the research on the deep ore-controlling structure of the Hatu gold mine is not much,and it is relatively incomplete and unsystematic.Nowadays,due to continuous exploitation,Hatu Gold Mine is facing serious problems of depletion of resources which will seriously damage the future sustainable development of the enterprise and the growth of the local economy.To solve the sustainable development of the Hatu Gold Mine,it is necessary to find a deep ore body that can be mined.This requires the geological workers to innovate and solve problems and find new concealed ore bodies.The Hatu Gold Mine is the largest gold deposit in Xinjiang with the largest mining scale and output which is a typical orogenic gold deposit.Many experts and scholars have done a lot of work on the ore source,metallogenic conditions and genesis of gold deposits,and based on this,the prospect of mineralization is predicted.However,previous studies lacked quantitative analysis of ore-controlling structures,especially the characteristics and distribution of deep ore-controlling structures,and did not grasp the stress mechanism of mineralization and halo,which greatly weakened the accuracy of prediction and location of deep concealed ore bodies.With the help of mine technicians,this paper systematically collected samples of subsurface deep concealed ore bodies and surrounding rocks,and calculated the occurrence and quantity of deep ore-controlling ore-bearing fault structures,and analyzed fault structures and orebodies.The relationship between geochemical primary halos provides a basis for tectonic and exploration geochemistry for the deep prediction of gold deposits and orebody location in the Hatu gold deposit and related areas.According to the statistical occurrence of ore-bearing faults,the variation of the ore-bearing tectonic formation is large,the quantity fluctuates obviously,and the rock is mainly composed of brittle deformation.Under the action of torsional stress,more fissures are formed,showing the geese-type pinch-out The distribution characteristics of the reappearance;the number of deep faults is significantly reduced,the range of occurrence is narrowed,the brittle deformation increases to plasticity due to the increase of rock confining pressure,the fissures are not developed,and the quartz vein type ore becomes quartz veins and altered rock type.The spatial variation of the content of Hg,Au,Ni,Pb,As,Sb,Cu,W,Zn,Ag,Mo and Bi in 12 ore-forming halo indicators was analyzed,and the lower part of the known ore body was found to be halo.The combination of elements is dominant,although there are abnormalities of the front edge halo elements Sb and As,but the scale and intensity are small.Combined with the characteristics of the downward attenuation of the number and intensity of ore-bearing faults,it is speculated that there may still be hidden ore bodies in the deep,but the scale is not large.
Keywords/Search Tags:Hatu gold mine, Ore-controlling structure, Tectonic occurrence, Geochemistry
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