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简介：StrataofdifferentgeologicalperiodsextensivelyoutcropinwesternGuang-dongProvince,butmostgolddepositsarerestrictedtotheMiddle-LateProterozoicYunkaiGroupandtheCambrianBacunGroup,showingobviousstrata-bouncharacter-istics.GoldabundanceandtraceelementgeochemistryoftheYunkaiandBacunGroupsarecomparedwiththoseoftheOrdovicianandSilurianstrta.TheYunkaiGroupisconsideredtobethesourcestrataforgoldmineralizationintheregion.

简介：CalculationsbasedontheavailablethermodynamicdataofAuCl2^-andAu(HS)2^-indicatethatAuCl2^-isresponsibleforthetransportandenrichmentofgoldduringthestageofpre-concentrationinthesourcebedwhileAu(HS)2^-isthemaingoldspeciesinvolvedintheformationofgolddepositsinresponsetohydrothermalreworking.Acidchloridesolutionswithαcl^->10°andsulfur-richsolutionswitha∑sinexcessof10^-2areheldasimportantcriteriaforgoldenrichmentinthesourcebedandfortheformationofgolddepositsbysubsequenthydrothermalevent,respectively.

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简介：在用黄金和银做的塑造的nanoparticles的合成的进展在这篇文章被考察。这评论由分析在nanoparticle形状和它的内部水晶的结构的几何对称之间的关系以一个新角度开始。根据关系，有明确的形状的nanoparticles被分类进三个范畴：有单个crystallinity，有尖双胞胎的nanoparticles，和有平行双胞胎的nanoparticles的nanoparticles。为在每个范畴的塑造的nanoparticles的合成的古典方法的讨论和分析也被包括，在塑造的金属nanoparticles的合成的未来研究方向上的个人观点简短被总结。这评论被期望在为塑造的nanoparticles的合成设计策略并且分析相应生长机制提供一个指南。

简介：SubordinatedtotheMinistryofMetallurgicalIndustrytheChinaNationalGoldCorporationistheonlystate-runnationalgroupcorporationinChina.Itisauthorizedtoperformitsobligationsinthecontrolandoperationofthestateownedassetsofitssubordinatedenterprisesandundertakinginstitutions.Anditisalsoresponsibleforworkingoutandimplementingthelong-termprogrammesandyearlyplansofthoseenterprisesandofficesdirectlyaffiliatedtothecorporationandfortheinvestmentandbuildupoftheentiregoldindustryinChina.Ithastheautonomytodevelopinternationaleconomicandtechnicalexchangeandcooperationwithitsforeigncounterpartsandtoconductimportandexportbusinessofthematerials,equipmentandtechnologiesforuseintheindustry.

简介：一个身患绝症的小男孩，知道自己的生命时间不长了。但此时他想到的不是等待死亡，而是生存，而且不是一般的生存——他也要象举重冠军那样，去拿金牌。

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简介：TherearethreetypesofgolddepositsintheJiaodonggoldmetallogeneticdomain.Thestrata-boundgolddepositsareanewtype,whichoccurinahydrocarbon-dleddouble-sourcebedenrichedingold(Au174ng/g)andorganiccarbon(0.007-4.225%),Atdiageneticadhydrotherrmalstageswaterandoilweresimultaneouslyactivatedandthestrataboundgolddepositswereformedfrominteractionsbetweenwater,oilandrocks.InthelateYanshanianperiod,goldoreboideswereenrichedandenlargedinresponsetotectonmoagmatismandactionofcomplexore-forminghydrothermalsolutions.Asaresults,itishighlyexpectedtofindsuparlargegolddepositsandtheYanziareaisexpectedtobeaperspectivetargetarea.

简介：Inthisstudy,anelectronmicroprobeanalyzer(EMPA)wasusedtomapthespatialdistributionandtheoccurrenceofinvisiblegoldinpyritefromtheLiulinchagoldorebelt.EPMAdatashowthatgoldmainlyoccursassubmicroscopic-microscopicinclusions.FromthecontrastofthemajorguideelementsofpyritefromtheLiulinchagoldorebeltandthosefromfourhydrothermal-typegolddepositsintheJiaodongregion,wecanseethepyriteswereformedintwostages:thepyritefromwallrockismainlysedimentogenic,withsimplestructure;andthepyritefromorebodyexperiencedearlysedimentaryprocesstolatehydrothermalactivity,thepyriteisregularincrystalformandexhibitsfracturedstructure.

简介：TheSainUsgolddepositisatypicalauriferoussulphidequartzveindepositintheInnerMongolianaridsteppeclimaticregion.Theoxidationzonehasbeencontrolledbythearidcli-matesincethebeginningoftheHolocene.Goldsupergeneevolutionischaracterizedbyenlarge-mentofgoldgrains,complicationofthegoldform,raisingofthegoldgradeandincreaseofthegoldfineness;besides,goldandsilverhavetwoenrichmentpeaksatthesamedepth,whichisinsharpcontrasttotheunimodalenrichmentofgoldandsilverandtheoccurrenceofgoldaboveandsilverbelowinahumidclimaticregion.Sunpumpingisthemaincauseforthebimodalenrichmentofgoldandsilver.Illite2M1isoneofthemaincausesfortheupperenrichmentpeakofgoldandsilver.

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简介：<正>RonBickLeewasoneofthemoresuccessfulones.RonBickLeeleftTaishan,south-easternChinain1910armedwithasmallbagofpersonalpossessions,carryingonhisshouldersallthehopesanddreamsofhistownspeople.HewasboundacrossthePacificforgumsan,GoldMountain,specificallyCanada.Thankstohisfamilyandneighbours,whopooledtheirmoneyforthe18yearold,hecouldaffordtheritesofpassageandtheexorbitant$500.headtax.Hisson,Bob,arealestatetycoon,nowinhisseventiethyear,recallshisownlifeasayoungster,survivingtheyearsoftheDepression,andadmiringhishard-workingfatherThestory,recentlyencapsu-

简介：Geodomestructuresinthispaperrefertopositiveunitsofdiffcrentorders,geodomespptem,geodomesericsandgeodome,inadiwaregion.Onthem,besidesintrusivebodies,thediwastructuralstag6iscomplcte1ymissingoron1yhasasmallareaandthickncss,butthop1atform,gcosynclina1andcvcnprcgcosyncllna1structuralstagcsarccxposcdwidc

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简介：Tectonicoreformationisthercsultoftcctonicmovementincombinationwithore-formingmaterjalmovementintheprecessofcru8talevolutlonandtectonicdevelopmcnt.Oreformationjsconditionedbythelawgovcrningmobile-8tabletransformationincrustalcvolutionshowsanorderinmetallogenicevo-lution,regionaidistributionofgolddepo