福建政和翁村银金矿地质特征及成因探讨

政和一大埔断裂带是福建省重要的金银多金属成矿带，测区有良好的区域成矿背景。区内银金矿体产于次火山岩流纹斑岩、流纹岩与自垩系陆相火山碎屑岩接触带，并严格受火山机构控制。属浅成低温脉状矿床。     

云南普朗铜矿已探明储量为92万t

位于云南三江(怒江、澜沧江、金沙江)成矿带腹心地段的大型铜矿床——滇西北普朗斑岩型铜矿探明铜资源量达92万多t，其中高级别储量76万t，潜在经济价值400余亿元，预测远景资源量可达300万t以上，属特大型矿床规模。     

辽西南部火山岩型金矿床地质特征及找矿方向

辽西小孤山一影壁山断裂控制了火山热液矿床的分布,本区火山热液型矿床主要发育在早白垩世义县期早期火山岩浆演化序列的中性一酸性阶段。矿床按成矿作用方式可分为：次火山岩、火山一侵人岩及围岩中的裂隙充填型金矿,引爆角砾岩筒中细脉浸染状多金属矿。     

新疆准噶尔东部黑山头金矿地质特征

黑山头金矿初步确定成因类型为中低温岩浆热液石英-碳酸岩脉型金矿床,矿床处于唐巴勒-卡拉麦里金铜铬钼成矿带上,矿体严格受卡拉麦里大断裂及其次级断裂构造控制,赋存于晚古生代石炭系中基性火山岩含金建造中。区内岩浆活动频繁,岩浆岩从超基性到酸性均有出露,金矿床（点）沿卡拉麦里大断裂带展布,金成矿地质条件优越。     

广东省揭西县金坑铜锡铅锌矿矿床地质特征及找矿标志

广东省揭西县金坑铜锡铅锌矿区处粤东惠阳嗨县新华夏构造带之莲花山深大断裂带内。区内地层以侏罗系上统高基坪群酸性火山岩为主,主要构造线方向为北东向。主矿体呈脉状形成于NE向层间破碎带及NW向断裂构造中,矿体围绕区内燕山期花岗岩分布。初步研究认为矿床成因类型为岩浆期后热液裂隙充填（交代）型铜、锡、铅锌矿床,成矿时代为燕山期。矿床受地层、构造和岩浆岩综合控制,地质特征,分析矿床地质成因,总结成矿规律,提出找矿标志,为以后在粤东地区找矿工作提供依据。     

洋灰洞子铜矿床地质特征及其找矿方向

洋灰洞子铜矿床是位于太平岭多金属成矿带上一小型矿床,通过对该矿床的矿床地质特征、矿石特征、围岩蚀变特征、成矿条件的分析和成因的探讨,认为该矿床是受构造控制的斑岩型铜矿特征类型,为下一步工作提供明显的找矿标志和方向。     

柞水-山阳矿集区冷水沟斑岩型铜钼矿床地质特征及找矿前景分析

冷水沟铜钼矿床为近年来在柞水-山阳矿集区新发现的一斑岩型矿床,为秦岭造山带燕山期构造一岩浆活动的产物。区内岩浆侵入活动频繁而强烈,构造发育,矿体主要赋存于花岗闪长斑岩和其围岩接触带附近,围岩蚀变强烈,由岩体向围岩依次发育斑岩型、矽卡岩型、热液型矿化,构成斑岩型成矿系列。通过对区内地、物、化条件进行综合分析,总结找矿标志,认为冷水沟地区找矿前景广阔,具有形成中砍型铜钼矿床的潜力。     

辽西地区贡屯铜钼矿矿床成因及找矿标志

贡屯铜钼矿产于虹螺山-五指山多金属成矿带的北东段,是辽西地区重要的成矿部位。铜钼矿受花岗斑岩杂岩体、到NE向断裂构造控制,具有典型的斑岩型铜钼矿的蚀变类型,由此可知其成因类型为斑岩型。找矿标志为花岗斑岩杂岩体、断裂构造、硅化、钾化。     

斑岩铜矿成矿构造特征及找矿方法探讨

斑岩型铜矿床是重要的铜矿类型,具有规模大、埋藏浅、成群成带出现,矿石易选,可综合利用元素多等特点,在已探明的铜储量中斑岩型铜矿居首位。研究认为,斑岩铜矿的分布主要受板块构造控制,多集中在板块构造的敛合带上,斑岩铜矿与陆相火山成因的黄铁矿床、矽卡岩型铜矿及铅、锌、银、金等多金属中低温热液矿床相伴生,具有特征的矿化蚀变组合及分带,而在表生作用下可以形成次生富集带。本文从理论与野外实际相结合的角度,简述了斑岩型铜矿床地质构造特征,介绍了斑岩铜矿的找矿思路与方法,适宜野外的实际应用。     

青海纳日贡玛矿找矿预测研究

纳日贡玛铜铜矿是青海南部发现的一个最重要的斑岩型铜钼矿床。本文结合区内已发现矿床（点）的矿床地质特征,开展了地物化遥的综合分析和信息提取,总结了成矿带内的成矿规律,圈定了纳日贡玛-东莫扎抓铜铝铅锌成矿远景区等六个可供进一步勘查的找矿远景区。     

果洛龙洼金矿床地质特征及成因探讨

果洛龙洼金矿床是近年在东昆仑造山带东段新发现的一处中型金矿床,通过对矿床的成矿地质条件、矿床地质特征,成矿机理的分析和研究,认为该矿床由早期形成的热水沉积建造提供主要成矿物质来源,在后期动力挤压、变形、变质作用下,成矿物质富集,形成含金石英脉型、构造蚀变岩型、具有典型的韧性剪切带型金矿床特点。     

云南龙脖河铜矿东矿带火山岩浆杂岩及其含矿性

变钠质的中基性火山杂岩-细碧角斑岩系是龙脖河铜矿区东矿带铜矿床的成矿母岩和容矿岩石,它固有的含矿性控制着区内铜矿床的空间展布和规模大小,为矿床的形成及定位提供了较为充分的物质保证。     

滇西沙河厂火山岩型铜矿找矿的新认识

介绍了已开发利用的滇西火山岩型铜矿;讨论了以保山市沙河厂铜矿为代表的寒武系海相火山岩型铜矿的特征及其找矿开发前景,此种火山岩型铜矿化分布面广、矿点多,勘查和研究程度较低,有待进一步开发研究。     

准西海相浅层石炭系火山凝灰岩油气发现的意义

探讨了准噶尔盆地西缘车排子地区实现浅层海相火山凝灰岩勘探突破的意义。排61井在石炭系火山凝灰岩1113.5-1130.0m井段、常规试油获得日产4.6t/d工业油流,50℃脱气原油粘度390mPa·s,首次实现了车排子地区浅层海相火山凝灰岩勘探的突破。车排子地区具有有利的区域构造条件、储集条件、油源条件、油气运移通道、油藏埋深较浅,而且前人积累了发现开发克拉美丽大气田的经验,具有后发优势。由于排61井钻探的火山凝灰岩不属于优质储集层,可以推断,如果找到更好的储集层,找油前景将会多么乐观。而且,排61井常规试油就获得了工业油流,如果实施压裂改造,必然会大幅度提高单井产能,必能极大地增强在该区域勘探的信心。车排子地区石炭系火山岩分布广泛,具有良好的生储盖条件,总体勘探程度仍较低,具备发现大油田的有利条件。落实烃源岩发育区、有利储层发育带、提高单井产能是石炭系勘探的关键。排61井区已部署第二轮多口探井。     

福建政和上山岗金银矿床地质特征

福建政和上山岗金银矿床位于闽西北隆起带与闽东火山断坳带交接部位,金银矿体主要赋存于石英脉中,围岩为多屑凝灰岩、岩屑晶屑凝灰岩等,矿体与围岩界限清晰。矿区内构造发育,其中北东向断裂构造是最重要的导矿和容矿构造;北西向断裂为成矿后期构造,是主要的切割破坏矿体构造。     

新疆若羌县石门铜金矿地球化学障及找矿方向

石门铜金矿位于塔里木板块北山裂谷西段,区域上分布有多处浅成低温热液型金矿床。石门铜金矿自2002年发现至今的近十年内,仅于普查阶段发现一条含铜金蚀变带之后一直没有突破。笔者结合石门铜金矿地质特征,围岩蚀变,矿体特征,对石门铜金矿中的成因矿物学进行了研究,分析矿体赋存部位的地球化学条件,明确了区内有利于金元素沉淀富集的地球化学障的位置,并提出找矿方向及工程布设建议,以期取得找矿突破。     

Influence of polymer additive molecular weight on surface and microstructural characteristics of electrodeposited copper

Electrodeposition of copper was done with different molecular weight (MW) polyethylene glycol (PEG) as an additive in the plating bath. The adsorbed layer formed of PEG and chloride ion (Cl⁻) in the presence of copper ions has a definite role in controlling the deposition mechanism and the coating characteristics. The adsorption behaviour and suppressor nature of PEG with different MW (200–20000) on the physicochemical and the surface morphological features of the copper deposit were characterized. The results reveal that depending on the adsorption capacity of the intermediate complex, the deposit properties show gradation. There is a range of morphology with particular grain structure for different MW PEG addition. Grain size and the roughness decreased with increase in PEG MW. The concentration of Cl⁻ ion in the plating bath is also significant in determining the deposit mechanism of the bath as revealed from the shift in cathodic potential. The adsorbing power of the complex depends not only on PEG MW but also on Cl⁻ ion concentration. XRD analysis of the copper deposit obtained with low MW PEG showed (220) as the major plane and with high MW PEG the prominent orientation was (111) and (200).     

酸性蚀刻废液制备纳米铜粉及其稳定性研究

以酸性蚀刻废液为铜源,水合肼为还原剂,采用液相还原法制备纳米铜粉.研究发现,在氯离子的存在下,直接还原难以得到高纯度的铜粉.介绍了络合还原和除氯后还原两种铜粉制备方法,用铜粉导电率表征其抗氧化性能,并对两种方法制备的铜粉的稳定性进行了比较分析.     

Influence of mesostasis in volcanic rocks on the alkali-aggregate reaction

Mesostasis material present in the interstices of volcanic rocks is the main cause of the alkali-aggregate reaction (AAR) in concretes made with these rock aggregates. Mesostasis often is referred to as volcanic glass, because it has amorphous features when analyzed by optical microscopy. However, this study demonstrates that mesostasis in the interstitials of volcanic rocks most often consists of micro to cryptocrystalline mineral phases of quartz, feldspars, and clays. Mesostasis has been identified as having different characteristics, and, thus, this new characterization calls for a re-evaluation of their influence on the reactivity of the volcanic rocks. The main purpose of this study is to correlate the characteristics of mesostasis with the AAR in mortar bars containing basalts and rhyolites.     

A SERS study of the galvanostatic sequence used for the electrochemical deposition of copper from baths employed in the fabrication of interconnects

This paper reports the first study carried out by surface-enhanced Raman spectroscopy (SERS) during the galvanostatic electrodeposition (ECD) of copper from an acidic sulphate solution, in the presence of polyethylene glycol (PEG), bis-(3-sulfopropyl)-disulfide Na salt (SPS), benzyl–phenyl modified polyethyleneimine (BPPEI) and chloride ions. The analysis of SERS spectra recorded during electrodeposition allowed to get an insight into the complex interfacial behaviour of the organic blend, in terms of co-adsorption and reactivity. At open-circuit (OC), the additives co-adsorb on the copper cathode. Upon increasing the cathodic polarization, progressive SPS-scavenging action of PEG was observed. BPPEI is adsorbed in the entire process window and cathodic reaction products of PEG were identified. The joint action of the organic additives yields a continuous deposit with crystallites of submicron dimensions, as revealed by Scanning electron microscopy (SEM).