简介：多孔的堇青石陶艺在11001350°C从煤苍蝇灰和基本的镁碳酸盐的混合物被准备。孔，曲折力量和在1300°C的样品sintered的热膨胀系数被估计是26%，65MPa和4.21×10−6/°C,分别地。形成进步的动力学被伴有XRD，SEM和孔测量的逐步的等温的dilatometry(SID)调查。从SID的等温的收缩数据能很好被分析根据Makipirtti-Meng开发的实验的率方程得到运动参数，这被发现，dY/dt=nk(T)Y(1−Y)(Y/1−Y)Y在烧结过程和n期间是部分收缩的n/1,少些是一种尺寸部件。为9001000°C和10501150°C的明显的活化能ΔE价值分别地是1294和1778kJ/mol。

简介：Molecularbiomarkersaretheimportantmaturityparametersforsedimentaryorganicmatter.Theyhavealsobeenwidelyusedfordeterminingthematurityoforganicmatterinoredeposits.However,duringthestudyoforganicmatterintheKupferschieferfromtheLubinmine,ithadbeenfoundthatthebiomarkerswereinfluencedbysulfideformation.Inordertoprobeintothedegreeofinfluenceonbiomarkers,sevensamplescollectedfromaKupferschiefersectionfromtheLubinminewereanalyzedbyvariousgeochemicalmethods.Theresultsindicatedthatinthesampleswithhighercoppercontents,thevaluesofbiomarkersarelowerthaninthesampleswithlowercoppercontents.Inhighlymineralizedsamples,hydrogendonationforthermochemicalsulfatereduction(TSR)occurredinalkylatedphenanthrenesandnaphthalenes,leadingtothedecreaseof12biomarkerparametersduringtheKupferschiefermineralization.

简介：Basedontheanalysisofsideritedistribution,occurrence,chemicalcompositionk,structurealcharacteristics,carbon-oxygenisotopiccharacteristicsandrelationshipbetweensideriteandhematite,thispaperpresentsasystematicstudyofsideriteintheregionstudied.suggestingthatthesideriteintheXuanlongareageneticallyresultedfromorganicallyreducedprimaryhematiteduringthediagenesis.Theferricandferrousrelationsdirectlydependonorganiccontents.Inthepresenceoforganicmatterferrousironcanbeconvertedtoferricironthroughorganicreduction.Theaboveconclusionhasalsobeenprovedbyorganicgeochemistry.data.

简介：Onthebasisofmineralparagenesisandthechemistryandhomogenizationtemperaturesoffluidinclusions,thephysicochemicalparameterswerecalculatedfortheformationoftheDalingkouAg-Pb-ZudepositinZhejiang.Fromtheearlytothelatestageofmineralizationtheore-formingtemperatureveriationwasfoundtobe298.5℃→267.0℃→217.6℃→167.3℃,withacorrespondingpHchangeof3.0-5.8→6.1→6.7→5.0→7.3.Thepressurechangedfrom403.8to128.5atm,andlogfS2-9.9→-11.2→<-15;logfO2<-44→-45.6--42.6→>-44.2;andlogfCO2around-1.55.Inconjunctionwithgeologicalobservations.thedepositisconsideredtobeofmeso-epithermalorigin,i.e.,itwasformedaftercontinentalvolcanic-subvolcanicactivity.ThemajorfactorsaffectingoreprecipitationarethedecreasingtemperatureandtheincreasingpHofore-formingsolutions.

简介：Thegolddeposits,occurringinthesouthsubzoneofwesternQinling,aretheonlytypicalandimportantstrata-boundgolddeposits,whichareassociatedwithsubmarineexhalativesedimentation.ThegolddepositsincludetheLa'ermaoredeposit,theQiongmooredepositandtheYaxiangoreoccurrence.TheyarehosteditheCambriansilicaliteformationcomposedofblackchertandslate.Thepresenceoftypicalchertoffersimportantevidencetoevaluatethepossiblesubmarineexhalativesystemanditsroleintheformationofthegolddeposits,whicharecloselyassociatedwithperoclationanddiffusioninthehorizontal,verticalandaxialdirections,Element-assemblagezonationisclearlyseenduetodifferencesinelementconcentrationsindifferentdirections,Suchazonationmakesgold.selenium,uranium,copper,stibium,molybdenum,mercury,etc,precipitateintheformofsimpleorcompositeorebodies.Theestablishentoftheelement-assemblagezonationishighlyhelpfulforevaluatingdirectlythemetallogenesisofgolddeposits.

简介：Lepingcoal(includingbarkinite-richcoal)isauniquekindofcoal,whichiswidelydistrbutedintheLatePermianLonganFormation,SouthChina,Inthispaper,ROck-Eval,Py-GCandsimulationexperimentviaanopen-systemwereusedtostudythehydrocarbon-generatingpotential,hydrocarboncomposition.andhydrocarbon-generatingmodelofbarkiniterichcoalsfromtheshuichengcoalfieldofGuizhouProvince,SouthwestChina.Theresultsshowthatbarkinite-richcoalshavehighhydrocarbon-generatingpotential,withS1+S2being211-311mg/g,andcanproducelargeamountsofhydrocorbonatthehigh-maturitystage,mostlywithinthetemperaturerangeof420-450℃(correspondingtoVR01.1-1.5%);barkinite-richcoalisoneofthebetteroilsourcesandlighthydrocarbonandwetgasarethemajorhydrocarboncomponents,whichaccountfor45%and33%ofthetotalhydrocarbons.respectively.ThesecharacteristicsareofimportanceforexploringoilandgasresourcesintheLatepermianLongtanFormationcoals,southwestChina.

简介：HavingstudiedthebiomarkercompositionandmaturityofdissolvedhydrocarbonsfromOrdovicianformationwaters,theauthorspresentedmoleculargeochemicalevidenceforthecontroversialoriginofnaturalgasesincentralOrdosBasin.ThedissolvedhydrocarbonsinWellShan12andWellShan78arerelativelyhighinabundanceoftricylicterpane,pregnaneseriesanddibenzothiopheneseriesandlowinPr/Ph(＜2)andhopane/steraneratios,indicatingthesourceinputofmarinecarbonates.Incontrast,thedissolvedhydrocarbonsinWellShan81arefreefromtricyclicterpaneandpregnaneseries,withtracedibenzothiopheneseriesandhighPr/Ph(3.27)andhigherhopane/steraneratios,whicharethetypicalfeaturesofterrestrialorganicmatter.Furthermore,WellShan37andWellShan34arebetweenthetwosituations,havingamixedsourceofmarinecarbonateandterrestrialorganicmatter.Thematurityofbiomarkersalsosupportstheabovesuggestions.Theseresultsareconsistentwiththegeologicalbackgroundandsourcerockdistributioninthisregion.

简介：Basedondetailedgeologicstudy,theimportantroleofstructuringintheformationofgolddepositsintheareaisdiscussedwithspecialreferencetostructuralevolution,Syngeneticfaultingcontemporaneouswithtectonic-volcaniceventsisthoughttoberesponsibleforprovidingtheore-formingmaterialatdepth.ThelithofaciesformedbyhighlyalternatingdepositionofterrestrialandcarbonatedetritusischemicallycharacterizedbytheassemblageofAu-Sb-As,constituteingafavorablesourcebedfortheactivationandenrichmentofgold.Thisgoldsourcebedhasundergonefourmajorstagesofstructuraldeformation,accompaniedbymulti-stagedalterationandmineralization.

简介：根据地质并且geochemical学习包括体积岩石的化学分析，稀土元素并且痕量元素研究，液包体，和S和Oisotopic分析，作者详细描述了存款的地质的背景并且为Shaxi斑岩铜黄金存款的形成的条件介绍了重要证明。与在中国和邻近的Cu-Au的另外的大、晚饭大的斑岩铜矿床相比，使矿物化的区域，形成矿石的过程和条件被分析；并且在Shaxi区域形成大斑岩铜矿床的可能性被讨论。现在的学习显示形成矿石的液体和材料主要具有magmatic起源，当天落水在形成矿石的过程起了某个作用时。自从侏罗记，在潜水艇ducting和制服的盘子之间的相互作用在华东为火成岩和金属元素的免职的形成提供了一个主要驱动力。基于Shaxiintrusive的geochemical数据，铜(黄金)矿化作用是，这被发现仔细与在Shaxi区域恼人的象adakite一样的开始有关。这象adakite一样intrusive向华东大陆由于西方太平洋板的俯冲在俯冲环境被形成，在有形成一张大斑岩铜矿床的一个大潜力的地方。