甘肃省嘉峪关市阴洼沟金矿地质特征

区内出露地层有寒武系中统,奥陶系下统阴沟群,石炭系上统太原组以及中生界的侏罗系、白垩系。区内岩浆活动微弱,仅有小规模加里东期花岗岩体及海西期花岗岩体分布。区内褶皱与断裂构造比较发育,具有较好的成矿地质条件与区域地质背景环境。阴洼沟金矿主要矿石类型有褐黄色碎裂构造蚀变岩、灰绿色及黄绿色碎裂构造蚀变岩。通过对金矿床地质特征的研究,特别是控矿地质要素的分析,总结阴洼沟金矿床特征,张-压扭性断裂构造对本区金矿的形成起了重要作用,主要表现在控制成矿规模,矿体形态和矿化强度等。     

甘肃省东狮沟及外围铜金多金属矿地质特征及找矿方向

东狮沟地区位于华北地台、塔里木地台、祁连褶皱带三大构造交汇部位,在受挤压隆升的同时,发生大规模的NWW及NW向的推覆走滑,韧性及韧脆性剪切带非常发育,为含矿热液的运移和富集提供了良好的通道和场所。该区中寒武统格尔莫沟群中岩组昌马西湖泉等地发现了沉积变质型磁铁矿、下岩组在鹰咀山等地发现沉积型锰矿。同时还发现了寒山、鹰咀山大型金矿、香毛山铜钴多金属矿床。所以说该层应该是北祁连一带最有前景的铜多金属矿田的主要赋矿层位。     

内蒙古安家营子金矿田韧-脆性剪切带控矿特征及矿化分布规律

韧-脆性剪切断裂构造是安家营子金矿田内破碎蚀变带型、石英脉型和蚀变岩型3种矿化类型的主要控矿构造,文中阐述了韧-脆性剪切断裂构造对金矿化空间展布特征、矿体产出形态、富集部位及构造活动的多期性、矿化阶段的控制作用,同时总结了矿床在空间上等距离分布的规律。     

谢家沟金矿的地质特征和成因类型——胶东金矿床地质研究与找矿的新突破

文中论述了谢家沟金矿床矿区地质构造演化特征;谢家沟金矿床主要矿脉体特征及矿化类型；厘定了谢家沟金矿床的成因类型为同韧性剪切带蚀变岩型金矿;确定了张家庵-谢家沟-铁夼韧脆性剪切带控矿构造系统的存在，并对其地质特征、控矿模式及成矿远景进行了论述。     

胶东地区玲珑金矿和焦家金矿成矿控矿构造对比研究

玲珑金矿和焦家金矿是胶东地区大型金矿田,玲珑金矿田以石英脉型金矿床为主,焦家金矿田以蚀变岩型金矿床为主。在简要概述区域构造背景基础上,分别对2个大型矿床的成矿构造进行了分析,着重探讨了郭家店幔枝构造对2类矿床的成矿控矿作用,郭家店幔枝构造外围拆离带发育的一系列韧-脆性剪切带控制着矿床的分布,而矿化类型受断裂性质及位置的控制。依据幔枝构造理论,胶东地区金矿成矿物质来源于深部,依据该理论,研究了玲珑和焦家矿区的矿体分布、延伸及蚀变特征,进行成矿作用分析并推测深部找矿方向。     

江西铜鼓观田金矿点地质特征及找矿潜力浅析

通过对观田金矿矿点地质特征、化探异常及和矿化蚀变标志的综合分析研究,认为观田金矿赋存于新元古代青白口纪安乐林组浅变质岩中, 矿化受韧脆型断裂控制,矿床成因类型为构造蚀变岩性矿床。 根据该矿点的化探异常和矿化蚀变带规模,在该区寻找构造蚀变岩型金矿有较大潜力。     

青海五龙沟地区岩金沟金矿床地质特征

青海五龙沟金矿床是东昆仑成矿带大型矿集区之一,具有十分重要的经济价值与研究意义。五龙沟金矿区地处青海省都兰县境内,属于青藏高原北部的东昆仑山。岩金沟矿床位于五龙沟金矿区。矿区主要出露地层有太古-下元古界金水口群、中元古界小庙群、上元古界丘吉东沟群。岩金沟矿区断裂构造极为发育,金矿体产出及形态严重受限于断裂构造分布及规模,主要分布在北西向含金破碎蚀变带中,围岩蚀变以硅化、绢云母化、高岭土化和黄铁矿化为主,且黄铁矿为主要载金矿物。     

内蒙古哈达门沟金矿成矿控矿机制

哈达门沟金矿经过验证具超大型金矿床规模,金矿除严格受构造控制以外,又具有其自身独特性,如围岩的金高背景值、山前砖红色碎裂蚀变岩带、晶形粗大的黑云母花岗伟晶岩脉及岩浆多期侵入等,都成为金矿床形成不可或缺的因素。以幔枝构造理论为指导,通过对矿床地质特征及诸因素综合研究,认为哈达门沟金矿属于断裂-蚀变岩型矿床,乌拉山岩群是重要的矿源层;EW 向主次拆离带（主次断裂）为主要的导矿、容矿构造;多期次岩浆活动,尤其是印支期大桦背岩体、华力西晚期沙德盖岩体的形成为矿床提供热力、热水及部分成矿物质;成矿与黑云母花岗伟晶岩及乳白色石英脉脆性变形关系密切。探讨了矿床成矿规律,提出了找矿远景。     

构造叠加晕找矿方法在青海五龙沟金矿床深部找矿勘查中的应用

青海五龙沟金矿床位于东昆仑中段北缘之昆北断裂带和昆中断裂带夹持部位之间,区内岩浆岩发育,韧脆性断裂带弥补,形成了格尔木—五龙沟变质核杂岩构造,控制着区内金矿床的分布规律。以岩金沟矿段为研究对象,分析了该矿床的构造叠加晕特征。研究表明:矿床属于破碎带蚀变岩型金矿床,受北西—南东向韧性破碎带控制,含金蚀变带具有平行等距分布特征;认为F-Cl-B构成了该矿床的前缘晕,As-Sb-Ag组成了中前缘晕,Cu-Pb-Zn组合为中后部晕,W-Mo-Sn-Bi组合为尾部晕,对深部盲矿体预测提供参考,并提出了具有进一步找矿勘查的有利找矿靶区;根据现阶段钻孔施工显示,按选用的深部找矿预测方法,在3090中段预测区域已发现金矿体两条。     

甘肃小东沟金矿床地质特征及控矿因素分析

小东沟金矿床属于蚀变岩型金矿 ,产于西秦岭泥盆系中统碎屑岩中 ,蚀变以硅化、黄铁矿化、褐铁矿化、碳酸盐化、绢云母化为特征。矿石中金以自然金为主 ,黄铁矿、褐铁矿、石英是主要的载金矿物。断裂构造是矿床最主要的控矿因素     

熔炼次数对M17返回料合金成分、组织和性能的影响

实验结果表明,M17铸造高温合金(%:0.16C、8.79Cr、5.79A1、4.93Ti、3.29Mo、15.20Co、0.78V、0.015B、0.073Zr、0.002S、0.001P、0.001 1O、0.001 0N)经25 kg真空感应炉返回重熔后,Si含量随重熔次数的增加而略有增加,合金中主要元素和其它杂质元素S、P、H的含量变化不大,而氧、氮略有增加;合金中初生碳化物由新合金中的草书体逐渐向返回合金块状转变,初生碳化物的遗传性堵塞合金凝固时的补缩通道,使返回料合金的疏松倾向增大,高温塑性下降较大。     

Shijiazhuang will Build the World's Biggest Replacingcopper-with-aluminum Cable Production Base

正Shijiazhuang City will build the world’s biggest replacing-copper-with-aluminum cable production base,the annual output value can reach 100 billion yuan,in the future it will develop replacing-copper-with-aluminum highend industry cluster.This piece of news was learned by the reporter at the Rare Earth highiron Aluminum Alloy[Nonferrous Business Opportunity:Aluminum alloy door]Cable Conductor New Technology Application Seminar held at the provincial capital.     

Chongqing is Preparing to Set Up Nonferrous Metal Exchange,in a Bid to Become the Transit Place of Kazakhstan Copper

正Since the beginning of Chongqing’s upgrading to a municipality directly under the Central Government,Chongqing City has established direct friendly relationship with Almaty,Kazakhstan,and carried out a series of cooperation in commerce and trade,and culture     

Guangxi Baise Extends Industrial Chain to Combat Loss in Aluminum Business

正"For each tonne of aluminum being produced,the upstream enterprise on the aluminum industrial chain will suffer loss about 2000yuan."Said Liang Xiao,Deputy Director of Pingguo Industrial Park Management Committee under the Guangxi Baise City,one of the four major aluminum industry bases in China,on August 11.Extending aluminum     

JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL ANNUAL CONTENTS Volume 21(2014)

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Chinalco Straightened Out Copper Assets,and Delegated Stock Equity of Yunnan Copper

正Immediately after the news that Chinalco transferred 58%stock equity of Yunnan Copper Group to its wholly-owned subsidiary China Copper Corporation Limited free of charge was disclosed on July 9,many individual investors couldn’t help but to think:Does it mean China Copper Corporation Limited will assemble assets for overall listing?At present,among main copper business companies under China Copper Corporation     

The Development and Reform Commission Encourages Private Capital to Enter Geological Prospecting Field

正At the press conference recently held by the National Development and Reform Commission under the theme"Deepen Reform in Investment AuditApproval System",when answering questions from reporters,Huang Min,Director of the Department of Fixed Assets Investment of the National Development and Reform Commission,said that in the future it would continue to intensify efforts in geological prospecting,and actively guide social capital to enter this field.     

Guangxi's first Nickel Industry Development Research Report Was Released

正Recently,Guangxi Metallurgical Research Institute,a subsidiary of Guangxi Nonferrous Metals Group,completed survey on laterite and related manufacturers in the region,by combining the current development status of laterite both at home and abroad,it compiled Guangxi’s first"Research Report on the Development of Guangxi Nickel Industrial Chain"which adopted laterite as the study subject.This report expounded on the current     

China’s Major Non-ferrous Metals Imports & Exports(End of September. 2014)

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China's Major Non-ferrous Metals Imports & Exports

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