青海省赛西泉北地区金多金属矿地质特征与找矿标志研究

研究区大地构造属于秦祁昆造山系柴北缘结合带,构造岩浆活动强烈,成矿地质条件较好。本文对研究区地层、构造、岩浆岩及围岩蚀变进行详细分析,进而对控矿因素与找矿标志进行研究,矿区成因类型为构造蚀变岩型金矿,石英脉、构造、围岩蚀变等多种找矿标志明显,研究结果对同类矿床勘查具有重要的参考。     

新疆红十井金矿地质特征及找矿分析

红十井金矿大地构造位于塔里木陆壳板块由断裂控制的北山裂谷活动带。该区分布非常多的金矿床点,找矿潜力巨大。矿区内主要分布有两大类金矿,即蚀变岩、大青山式石英脉复合型和构造破碎蚀变岩型金矿床。该矿处于断裂活动多发且强烈的红十井断裂带上,其成矿的范围与规模受到由断裂派生的次级构造形成的构造断裂蚀变带的控制,成矿条件优越。文中在对红十井金矿地质特征进行分析的基础上,探讨该矿床成因,并总结其找矿标志,为今后区内找矿提供参考。     

青海滩北雪峰地区土壤地球化学异常特征及找矿前景

滩北雪峰位于祁漫塔格地区西段,是利用化探手段新发现的构造蚀变岩型金矿,探讨该金矿的化探异常特征及其找矿前景,对在祁漫塔格地区寻找金矿具有重要指导意义。在滩北雪峰地区开展了1/1万土壤地球化学测量,结果显示Au为富集元素,变异系数较大,R型聚类分析显示Au与Bi呈显著正相关,表明该区金成矿可能与中低温热液活动有关。进一步分析元素地球化学特征,并结合矿区地质背景,圈定出13个土壤综合异常,选择AP7、AP9异常区开展了异常查证工作,发现1条金矿化蚀变带,带内圈定出3条金矿体,地表亦发现多处金矿化线索。结合成矿地质条件,初步建立了地质、地球化学和构造等方面的找矿标志,探讨了矿床成因,指出今后找矿方向。土壤地球化学研究表明:该区具有良好的找矿前景,是寻找构造蚀变岩型金矿的有利地区。     

桃花金矿床介板冲—尖峰岭矿段破碎带蚀变岩型金矿体地质特征及找矿前景

阐述了桃花金矿床介板冲—尖峰岭矿段②号矿体低品位氧化矿的地质找矿成果,并通过分析矿床地质特征,总结找矿标志,对破碎带蚀变岩型金矿体的找矿前景提出了明确的见解,为寻找破碎带蚀变岩型金矿体的找矿勘查工作提供了宝贵的经验.     

青海同德小曲如沟—加日亥一带地质地球化学特征及钨矿找矿潜力分析

研究区大地构造位置处于东昆仑与西秦岭衔接部位,经历了复杂的构造演化过程,出露地层主要为中—下三叠统隆务河群,中酸性岩浆岩发育,成矿地质条件优越,已发现显龙沟锑金矿、加吾金矿等矿床,但区内以前未发现有钨矿化。以1/5万水系沉积物测量原始数据为依据,对研究区内地质、地球化学特征及成矿条件进行分析,结合实际找矿工作,认为区内W、Au、Ag、As、Sb元素富集程度较高,在钨矿找矿方面具有很大潜力,指出有利找矿地段为隆务河群第二岩性段内钨异常分布区,赋矿岩性为中薄层砂岩及板岩段内厚大的中薄层砂岩夹层,矿化类型以蚀变岩型及石英脉型为主。     

湖南安化芙蓉金矿矿床地质、地球化学特征及成因

安化芙蓉金矿是一个极具找矿前景的破碎蚀变蚀金矿,是近年来湖南金矿地质找矿勘查的重大突破。它的发现打破了湖南金矿规模偏小的格局,影响和改变了湖南金矿地质勘查的思路和观念,为在湖南寻找大规模新类型金矿提供了范例。通过对芙蓉金矿矿床地质特征、成矿地质条件的阐述,分析和研究了矿床地质、地球化学特征,总结了矿床富集规律,探讨了矿床成因。     

黑龙江省嫩江县永新北山金矿点地质特征及找矿标志研究

黑龙江省嫩江县永新北山金矿点位处多宝山铜矿床外围,多数矿产地处在NE向、次一级NW向、SN向断裂构造的交汇位置,且热液蚀变普遍发育。矿点所具有的典型地质特征表明其成矿条件极佳,且区内富含Au、Ag等元素。可以推测,该矿点成矿潜力巨大,找矿前景良好。因此,本文就黑龙江省嫩江县永新北山金矿点地质特征及找矿标志展开研究。     

简析新疆哈密大拱梁金矿矿体特征与找矿探讨

大拱梁矿区金矿位于西伯利亚板块与准噶尔板块的卡拉麦里―塔克扎勒―大黑山晚古生代碰撞带上,出露地层为下石炭统姜巴斯套组地层和华力西中期石英闪长岩等。通过对矿区区域地质和矿区地质进行研究,认识与金矿成矿有关的地层、构造、岩浆岩、围岩蚀变及物化探异常特征,分析矿体特征及矿石特征。对矿床成因进行初步探讨,总结找矿标志,为下一步找矿指明方向。     

陕西龙头沟金矿地质特征及找矿方向

龙头沟金矿是近年发现的构造蚀变岩型金矿,产于泥盆系砂岩中,成因类型为受构造控制的中温岩浆热液矿床。在介绍区域地质特征的基础上,总结与成矿有关的主要控矿条件,指出矿体主要受近EW向断裂控制,断裂倾向与地层相反,并且围岩岩性、蚀变强弱和矿体产出标高均对矿体的形态和品位有不同程度的影响。结合近年外围工作进展,提出本地区今后找矿勘查工作应围绕走向剪切断裂、区内矿化蚀变带及外围化探异常开展,同时对背斜南翼开展找矿勘查工作。     

甘肃省西和县安溪沟金矿地质特征与找矿潜力分析

安溪沟金矿位于吴家山复式背斜西转折端的安家岔组中,主要受张扭性断裂构造等控制,强黄铁矿化、褪色蚀变、铁白云石化、硅化等蚀变与金矿化关系密切,矿床类型为中低温岩浆期后热液型。目前发现金矿化带两条,圈定金矿体5条,金矿化体5条,矿石类型为构造角砾岩型和顺层挤压片理化蚀变岩型两种。矿体与Au相关的化探异常、低阻高极化激电异常对应较好,通过成矿地质背景、物化探异常特征、相邻金矿床对比,矿区及外围构造蚀变岩型金矿找矿潜力较好。     

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.     

Seven Rare Earth Projects Involving Close to 3 Billion Yuan Investment Landed In the HighTech Zone

正On May 22,Baotou Rare Earth Industry Cooperation Consultation MeetingProject Agreement-signing Ceremony was held in Ningbo,nearly 40 enterprises from Ningbo,Guangdong,Hunan,and Shanxi participated in project consultation.After multi-lateral communication,agreements were signed for a total of 7 rare earth projects successfully.