黔东南天柱县巴宗金矿区地质、化探特征及其找矿潜力

巴宗矿区位于黔东南天柱县境内,具有良好的金矿成矿地质条件。在前人1∶20万所圈定的化探异常的基础上,通过开展1∶5万水系沉积物测量和1∶1万土壤地球化学以及1∶5万构造地球化学测量工作,分析样品中Au、As、Sb、Hg、Cu、Pb、Zn等元素含量,在综合考虑异常区地质概况,各元素异常的空间分布特征、异常元素强度和规模,共圈定6处综合异常(水系沉积物化探异常5处,土壤化探异常1处),为后续的矿产勘查提供了勘探靶区。通过对巴宗矿区地质及化探特征的综合分析,认为该地区具有金矿产资源勘查的潜力。     

东天山沙泉子铜矿地质特征及找矿方向

沙泉子地区是东天山雅满苏铁铜多金属成矿带的一个重要有色贵金属矿化异常区，90年代中后期有色总局在该区域投入了较系统的1：5万～1：10万岩屑地球化学普查找矿工作，至2001年相继发现沙泉子、景峡等一批极具价值的铜矿床（点），初步展示出该区寻找与下石炭统海相火山岩有关的铜多金属矿床的巨大潜力。     

新疆阿舍勒铜矿区一号铜锌矿床地质特征与深部找矿预测

新疆阿舍勒铜矿区一号铜锌矿床形成于中泥盆世中酸性碎屑火山岩、受向斜构造控制的黄铁矿型铜、锌多金属矿床,矿床矿化分带特征明显。根据新疆地矿局第四地质大队地表最深孔ZK1303在海拔25～34 m见到厚度15.5 m的块状铜硫矿,结合现有一号铜锌矿床地质特征、成矿规律和前人研究成果,在井下海拔450 m 13#勘探线施工JZK1305、JZK1306、JZK1307,结果孔孔见矿,其中最深孔JZK1307在海拔标高-116～-154 m见到厚度28.28 m块状铜硫矿。由上述钻孔成果和一号铜锌矿床地质特征、成矿规律,预测阿舍勒矿区一号铜锌矿床深部向北延伸到海拔高度-300 m闭合。     

新疆布尔津县克因布拉克多金属矿区铜锌矿地质特征及成矿规律

克因布拉克多金属矿区铜锌矿位于新疆阿勒泰地区布尔津县阿尔泰山脉伊来克山以南的中低山区中，海拔高度为800～1300m，相对高差一般为50～100m，沟谷发育，地表覆盖较多。区域上所有的河流和小溪都是布尔津河的支流，河水不深，河床不宽，气候属大陆性气候带。矿区行政上属杜来提乡管辖，阿勒泰至冲乎尔乡-杜来提乡的公路横穿工作区，汽车可直达，交通非常便利。     

东天山卡拉塔格红海铜锌矿构造特征及矿床成因浅析

红海铜锌矿床位于东天山大南湖—头苏泉岛弧带北段的卡拉塔格地区。矿体产于英安质熔岩下盘的凝灰岩内,矿体上部以闪锌矿、黄铜矿、黄铁矿为主,呈块状分布在英安质熔岩与凝灰岩界面附近;下部为黄铜矿、黄铁矿,呈浸染状、网脉状分布在凝灰岩内;矿区普遍发育硅化、绢云母化、绿泥石化、碳酸盐化等低温蚀变组合。红海铜锌矿床主要受到近东西向断裂、北西-北北西向断裂与北北东向断裂的控制,三者均有破矿作用,其中北北向断裂还具有导矿和控矿作用。可识别红海铜锌矿至少经历了2期成矿作用,早期为火山机构控制,形成了VMS型块状铜锌矿体;之后受北北西向断裂控制,形成网脉状的低温热液型铜矿,并叠加在了早期块状铜锌矿体下盘。     

内蒙古三苏木西银多金属矿地球化学找矿信息评价

三苏木西银多金属矿成矿条件良好,具有银多金属矿找矿潜力。为了进一步确定找矿靶区,进行了1∶1万地球化学扫面工作。土壤元素浓集系数和变异系数综合分析表明Pb、As、Sb、W、Hg等元素在区内局部富集,是主要的成矿元素;根据相关性分析结果绘制的多元素综合异常图也反映出主要成矿元素异常浓集中心较明显,共圈定12处综合异常,探槽验证发现1处厚大Pb矿体。     

新疆哈密市玉海斑岩型铜(钼)矿的发现及其地质意义

玉海铜(钼)矿地处东天山土屋-延东斑岩型铜(钼)成矿带东段,从2011年发现至今,通过工作证实其与三岔口铜矿、三叉口西铜矿同处一个构造-岩浆带上,具备寻找中-大型斑岩型铜(钼)矿的前景。该矿床的成功发现不仅说明东天山土屋-延东斑岩型铜(钼)矿带具有向东延伸的潜力,并且使得三岔口地区有望形成一个新的斑岩型铜(钼)矿集区。同时该矿的发现也成为覆盖区找矿的一个典型案例,对带动东疆覆盖-半覆盖区找矿具有良好的借鉴意义。     

韩国公司增持菲律宾铜锌矿股份

综合外电报道，韩国LG国际公司（LG International．Corp）称该公司与国营的韩国资源公司（Koma Resources Inc，KORES）已从澳大利亚Lafayette矿业公司购入菲律宾一座铜锌矿的股份，韩国资源公司和LG国际公司所持菲律宾Rapu Rapu铜锌矿项目股份从26％提高至70％。     

新疆吐哈盆地艾丁湖地区煤层气资源调查AD-01井钻探施工技术

1　概况 《新疆吐哈盆地艾丁湖地区煤层气资源调查》是中联煤层气有限责任公司与新疆煤田地质局156队2006年申请的地质调查项目。通过该项目实施、调查并评价工作区煤层气的资源潜力和可采性，     

西藏谢通门县查布地区铜矿成矿地质作用浅析

冈底斯铜矿成矿带近年来成为研究的热点,西藏地勘局第二地质大队在麦热地区进行1∶5万地质调查过程中,新发现了4处铜(钼)矿化点,1处铁矿化点。其成矿围岩、构造-岩浆岩条件与研究区西侧的朱诺斑岩型铜矿极为相似,找矿潜力巨大。本文从成矿围岩、控矿构造等几方面对研究区的成矿规律进行总结,并归纳了该区域的找矿标志。     

银山铜铅锌矿地质特征及找矿前景

江西省银山铜铅锌矿床位于我国重要的铜金矿化区——德兴有色贵金属矿化区,对比分析表明,银山矿床的成因类型属银山背形两翼断裂裂隙带格架下的中生代陆相火山—次火山期后中低温热液裂隙充填成因.同时,对矿区物化探资料分析认为,物探异常、化探异常可以很好地利用在矿区的空白区找矿上;由九区东部边缘和九龙上天区西部钻孔资料推断,从九区...     

The effect of 180 °C-annealing on the electrochemical behavior of nano-thick zinc-electroplated copper in aqueous solutions with different pH

The anodic polarization and a.c. impedance measurements of 4 nm- and 25 nm-zinc-electroplated copper specimens were conducted in aqueous solutions with four different pH-values. The nano-thick zinc-electroplated copper was tested after electroplating and annealing at 180 °C for 1, 2 and 3 h, respectively. The results showed that the open-circuit potential (OCP) of 25 nm-zinc electroplated copper shifted toward noble potential after annealing. A more noble OCP of 25 nm zinc-electroplated copper could be achieved when zinc plated copper was annealed at 180 °C up to 1 h. Similar change was found for 4 nm-zinc electroplated copper only in neutral and alkaline solutions. The a.c. impedance response of all nano-thick zinc-electroplated copper corresponded to two Randle’s circuits in series, in which the circuit measured in a high frequency region of their Nyquist diagrams revealed the electrochemical behavior of nano-thick zinc deposits. The charge transfer resistance of the nano-thick zinc electroplated copper was significantly raised after annealing at 180 °C when tested in pH 9.5 solution. Microstructures of the aforementioned nano-thick zinc electroplated copper were examined with cross-sectional TEM specimens. A distinct phase interface between zinc and copper was observed for as plated specimens, while alloying of zinc and copper at the interface was detected after annealing at 180 °C for 1 h. Electroplated zinc diffused into the copper foil during the 180 °C-annealing and the corrosion potential of the anodic polarization curve indicated the condition of the alloy surface. The annealing effect of 4 nm- and 25 nm-zinc electroplated copper specimens could be related to the results of electrochemical measurement.     

用旋转圆盘—圆环电极研究黄铜的阳极溶解

本文采用旋转圆盘——圆环电极研究了黄铜(Cu37Zn)在1N Na_2SO_4及0.5N NaCl溶液中的阳极溶解行为。分别测出了黄铜阳极溶解时铜和锌的阳极溶解分电流密度。实验结果表明,Cu37Zn在上述两种介质中阳极溶解时均存在脱锌现象。在1N Na_2SO_4溶液中测得的脱锌系数强烈地依赖于阳极电位,而在0.5N NaCl溶液中,其脱锌系数与阳极电位的关系不明显。由黄铜中铜和锌的阳极极化曲线外推计算出了黄铜阳极溶解时锌和铜的腐蚀分电流密度,在1N Na_2SO_4溶液中分别为0.089及3×10~(-5)μA/cm~2,在0.5N NaCl溶液中分别为3.6及1.6μA/cm~2。实验还表明,黄铜在上述介质中的阳极溶解过程由扩散步骤所控制。     

The effect of environmental and meteorological variables on atmospheric corrosion of carbon steel, copper, zinc and aluminium in a limited geographic zone with different types of environment

Carbon steel, copper, zinc and aluminium test pieces were exposed to a large variety of environmental conditions in a reduced geographic area close to the coastline in order to ascertain the degree of deterioration of the same due to environmental corrosion. Calculations of corrosion rates were made via loss of weight (in the case of carbon steel, zinc and copper) and analysis of surface deterioration (in the case of aluminium) together with X-ray diffraction analyses. The levels of chlorides, SO₂ and time of wetness were also registered in order to be able to correlate the data with respect to corrosion rate with the environmental and meteorological parameters, using the potential law and a modified version of the same.     

Anaconda Reduction Works in Retrospect

An historical sketch of one of the great copper smelters of the United States. Facilities for the production of copper, zinc, and manganese, as well as the disposal of smoke are described. Recollection is also made of the old Upper Works and Lower Works, built in 1883 and 1887, respectively.     

不含铜类防污剂海洋防污涂料研制及性能

目的合成具有可控水解性能的丙烯酸锌基体树脂,用该树脂制备不含任何铜类防污剂的海洋防污涂料。方法两步法合成具有可控水解性能的丙烯酸锌基体树脂,用该基体树脂配以有机防污剂Econea、吡啶硫酮锌、吡啶三苯基硼烷等以及颜填料、助剂等制备不含任何铜类防污剂的自抛光海洋防污涂料。通过实海挂板试验、电化学阻抗性能测试、动态模拟试验对涂层进行表征。结果丙烯酸预聚物的数均分子量控制在30 000左右较为合适,即聚合反应温度控制在100℃、引发剂用量为8份时较为合适。采用自制的氢氧化锌、环烷酸以及丙烯酸预聚物制备的丙烯酸锌基体树脂具有良好的水解性能,制备的无铜自抛光防污涂料经36个月实海挂板试验验证,具有优异的防污期效。由于不含任何铜类防污剂,不会引起铝制基材表面电化学腐蚀,特别适用于铝制基材表面的防污。结论该不含任何铜类防污剂的环保型丙烯酸锌自抛光海洋防污涂料具有优异的防污性能,能够防止海洋附着生物对船底和其他海洋设施的污损,同时不会对海洋生态环境产生危害,特别是可以满足铝合金基材表面等对涂料有特殊要求的一些场合的防污需求。     

碳钢／紫铜在NaCl介质中的电偶行为

测定了碳钢／此铜在不同ＮａＣｌ浓度、温度、阴阳极面积比的电偶电位、电偶电流。结果表明：温度、面积比和氯离子浓度对电偶电流影响较大。     

Microbial aspects of acid mine drainage and its bioremediation

The role of chemolithotrophs such as Acidithiobacillus ferrooxidans, Acidithiobacillus thiooxidans and Leptospirillum ferrooxidans which were isolated from some abandoned mines and processed waste tailings in the generation of acid mine drainage and toxic metal dissolution was discussed. Mechanisms of acid formation and dissolution of copper, zinc, iron and arsenic from copper, lead-zinc and arsenopyrite-bearing sulfide ores and railings were established in the presence of Acidithiobacillus group of bacteria. Sulphate Reducing Bacteria（SRB） isolated from the above mine sites could be used to precipitate dissolved metals such as copper, zinc, iron and arsenic. Arsenic bioremediation was demonstrated through the use of native microorganisms such Thiomonas spp. which could oxidize arsenite to arsenate. Bioremoval of arsenic through the use of jarosite precipitates generated by Acidithiobacillus ferrooxidans and Leptospirillum ferrooxidans was also found to be very effective. Biotechnological processes hold great promise in the remediation of acid mine drainage and efficient removal of toxic metal ions such as copper, zinc and arsenic.     

安徽池州灌口锌多金属矿矿床成因及找矿标志

安徽池州灌口锌多金属矿属长江中下游成矿带之贵池—青阳铜、钼、金银、铅锌成矿亚带,具有明显的成矿系统.为在研究区进一步寻找更多的矿产资源,文章通过分析矿区地质特征,总结矿床成因,提出找矿标志,同时圈定找矿远景区,以期为今后研究区找矿提供支撑.     

3种有色金属在沈阳地区的大气腐蚀规律

通过Cu，Zn，A1在沈阳地区的大气暴露实验，总结了3种金属的大气腐蚀规律，并讨论了干沉降和湿沉降对金属的大气腐蚀影响。结果表明：Cu，Zn的腐蚀深度与暴露时间呈线性关系；A1的腐蚀深度与暴露时间呈幂指数关系。利用X射线衍射仪和扫描电镜对腐蚀产物的结构和形貌进行分析，并讨论了3种金属大气腐蚀产物的形成过程。