广东新洲金矿矿化特征

新洲金矿产于震旦系二云母石英片岩的层间断裂带中，震旦系地层含金１３．３×１０＾－９～２９．０×１０＾－９，是矿源层，矿床有金矿带１０条，第２，３矿化阶段为金主要矿化阶段，自然金呈包裹金，晶隙金，裂隙金，成色９４７‰，Ａｕ与Ａｓ，Ａｇ，Ｓ相关系数分别为０．８７，０．６４，０．５４。     

难浸金矿脱锑行为的研究

采用单泡浮选法，对含金黄铁矿与辉锑矿的浮选行为进行了研究，阐述了两种矿物分离的基本条件为：在碱性介质中（pH9－10左右），采用Na2CO3-Na2S法，添加少量活化剂-CU－SO4以丁基黄药为捕收剂。用实际矿石进行分离验证试验，获金精矿品位46．80g/t，含锑0．32％，回收率86．71％。     

吉林浑江金矿床的形成条件与成矿机制研究

吉林浑江金矿是近年来在我国东北地区发现的一种类型金矿床。矿化严格受荒山“Ｓ”型构造下盘含矿碳酸控制。矿石包体研究与热力学计算表明成矿温度为１８２－２３０℃，压力为５．６６×１０＾７－６．１６×＾７Ｐａ，成矿流人有中－弱碱性、强还原性地下热卤水特征。元素地球化学研究认为含矿碳酸盐建造是金矿化矿层，金以「Ａｕ（ＨＳ）」形式活化进入溶液，促使金沉淀的机制是溶液压力降低，还原硫活度下降及有机质吸附的作用。     

黔西南“大厂层”含金性刍议

近几年来,在黔西南地区的“大厂层”中相继发现金矿点,使盛产锑矿和萤石的“大厂层”更享有盛名．本文从“大厂层”的岩性特征、金的分布情况、金的矿化特征、金的富集因素及远景展望几个方面,对其层位含金性进行论述。     

广金坝矿田金—多金属矿化的成矿地质特征

矿田位于西成成矿区北带西部，广金坝复背斜构造系统控制；矿化类型为金-银-铅锌；金矿为构造蚀变岩型，受层间构造破碎带为主的构造系统控制。成矿经历了同生热水活动、动热变质作用、岩浆侵入迭加、表生作用等多个期次和阶段，形成了本区的金矿化。     

祥云金矿地质地球化学特征及矿床成因

矿区赋矿地层为正奥陶统向阳组，矿化受褶皱及断裂构造带控制，矿石属多金属硫化物型，金主要为显微－次显微粒自然金，多以包裹体形式散布于毒砂和黄铁矿为主的载金矿物中。     

矿石中金的快速测定——二正辛基亚砜泡塑富集全差示光度法

制备了二正辛基亚砜泡塑，并研究了二正辛基亚砜泡塑吸附金的条件和解脱方法。采用全差分光光度法进行测定，方法的测定范围为０．０５×１０＾－６￣ｘｘ×１０＾６ｇ，相对标准偏差ＲＳＤ＝５．６５％，可用于野外条件下进行矿石中金的快速测定。     

MIBK萃取TMK—丁醇显色测定矿石及浸出液中的金

研究了矿石及其硫脲浸取液中金的测定方法。经王水溶样后，采用ＭＩＢＫ萃取分离金鱼有机相，在ＰＨ４的醋酸－醋酸钠介质中，经ＴＭＫ－正丁醇显色，用７２１分光光度计于５４５ｎｍ处测定。表观摩尔吸光系数为１．７７×１０＾５，在０－１μｇ／ｍｌ金含量范围内符合比尔定律。方法灵敏、方便、准确与原子吸收法测得值相比较，结果令人满意。     

吉林省金城洞地区金矿成矿物质来源

金城洞地区金矿按产出地质背景划分为产于晚太古宙变质岩系中的金矿和产于花岗岩侵入体中的金矿。变质岩系金丰度分析表明，本区变质岩石金丰度背景值为２０４×１０－９，花岗岩金丰度分析表明，中生代二长岩中金丰度为６６０７×１０－９，其它花岗岩中则较低，为０７—２８３×１０－９；各类岩石金易溶性实验表明，区内斜长角闪岩、二长岩、煌斑岩中金呈易释放金形式存在，可为金矿成矿提供部分成矿物质，其它岩石中金呈不易释放金的形式存在。区内岩（矿）石硫同位素组成δ３４Ｓ在＋００４～＋４８‰之间，与陨石硫δ３４Ｓ值（－１～＋５１‰）相近；各类岩（矿）石稀土元素模式曲线平行分布，以ＬＲＥＥ富集、弱—无铕异常为特征，反映了它们具有相似的来源；各类铅同位素分析表明，变质岩、花岗岩、金矿石的铅同素组成投点均落于μ＝８５和μ＝９５８之间，进一步反映了成矿物质来源于深源（下地壳和上地幔之间）。     

礼岷金矿带东部脉岩与浸染型金矿的关系

在礼岷金矿带上与浸染型金矿有关的脉岩,空间上与矿化密切伴生, 时间上晚于矿化,成因上脉岩和矿化均与中川岩体有关,为同一岩浆-构造事件不同阶段演化伴生的产物。从岩石学、岩石化学、微量元素、同位素等方面讨论了脉岩的地质特征及其与金矿化的关系,可间接推出金矿与岩体的关系。     

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。     

China's Major Non-ferrous Metals Imports & Exports

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Zinc Production by Province in 2014

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80% of Chinese Firms Purchasing Overseas Mines Ended up in the Red

<正>Minmetals Resources acquired the world’s largest copper mine under construction for USD5.85 billion.One after another,listed companies Jien Nickle,China Molybdenum and Chihong Zinc and Germanium raised money to get involved in overseas mining projects…SOEs and private enterprises are engaged in a frenzy of overseas mine purchasing.A reporter with Economic     

Copper Processing Profit Dropped Sharply,Copper Consumption Will Face Impact in the Second Half of the Year

正Judging from China’s copper consumption field,the biggest consumption unit is electric power,which accounts for 47%of total consumption;it is followed by light industry sector,including household electrical appliance,machinery,durable goods and hardware etc,which accounts for 22%of total consumption;followed by transportation field,     

Central Geological Prospecting Fund Newly Added 16.47 Million Tonnes of Bauxite in 2013

正In 2013,the Central Geological Prospecting Fund(CGPF)Project newly discovered 15 ore fields,including 3 large above ore fields,and 5medium sized ore fields.The reporter learned from the recently published"Annual Report of Central Geological Prospecting Fund Project(2013)"that,from 2006 to 2013 the CGPF     

Manufacturers of Copper Tube for Central Air Conditioner Use Face Mounting Pressure in the Final Quarter of the Year

正This year,the investment growth rate of real estate industry continued to slow down,sold area of commercial housing also dropped significantly,which brought huge pressure to the domestic air conditioning manufactures.In the first half of the year,by relying on high growth in national financial expenditure,along with investment in public infrastructure     

Xinjiang Ranks No.1 in Production of Primary Aluminum in China

正Kang Yi,Honorary Chairman of China Nonferrous Metals Industry Association,said recently at the Forum on Development of the Non-ferrous Metals Industry in Central and Western China held in Zhengzhou that,as more and more electrolytic aluminum factories in Xinjiang came into operation,the electrolytic aluminum output of Xinjiang had reached2,275,000 tons in the first 7 months this year,     

Shenhuo Coal Industry and Electricity Power Completed800,000 t/a Aluminum Project in Xinjiang

正"Xinjiang project has been completed according to schedule,but total completion and total start of production are two different concepts,after completion it still needs a gradual process of reaching production target."On the morning of November 3,Shenhuo Coal Industry and Electricity Power told investors the above statement on the investor interaction platform.     

Guangdong Metal Transaction Center has Become the Second Largest Precious Metal Transaction Platform Nationwide

正The reporter learned from Guangdong Province Precious Metal Transaction Center that in 2013the Center maintained healthy development momentum,and had become the second largest precious metal transaction platform in China in terms of market size;currently Guangdong is quickening steps of financial innovation for the Center,aiming to build a transaction center with international core competitiveness.