简介：磁化率(MS)是东方的最重要的指示物之一--亚洲夏季风。在这介绍了学习是从Xifeng节的一个高分辨率磁化率记录，它由第四级的loess-paleosol组成顺序和上新世红色粘土。在磁化率的变化很好与δ18在深海的沉积和格林兰的eolian流动的O记录。在Xifeng节的气候的进化后来显示出那晚第三级，东亚paleo季风的驱动力在10-ka时间规模上与太阳辐射被相关。

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简介：有为从从沉积岩或石油提取的沥青的元素的硫的移动的金属性的铜的处理是最广泛地使用的方法。然而，很少注意都没对它的劣势被给予。铜能在常规硫移动期间与某极的有机物质交往，这被观察，它能强烈影响沥青的量、质的决心，作为被和铜的长链的丰满的酸的相互作用证实了。产生的铜肥皂被元素分析分析，光排放spectrometry(ICP-OES)，热分析(TG-DSC)和Fourier转变的电感耦合等离子体红外线光谱学(FTIR)。相互作用的机制被调查并且阐明。我们的试验性的结果将为新的为硫移动或搜索要求现在的方法的改进。

简介：在从贵州省的土样的硒的内容，它盖住17.6x10~的一个区域4km~2被决定了。947件样品的算术平均价值是0.39mg/kg，中等价值是0.30mg/kg，硒的内容在在基岩上开发的土壤从0.06～1.29mg/kg变化，它被基岩自己控制。

简介：Kaolinite(anddickite)isdioctahedral1:1layersilicate.Owingtotheinfluenceofdifferentgeologicalconditionsonthemineralduringandafteritsformation,naturalkaolinite,ingeneral,possessesdifferentdegreesofinternalstructuralorder.PlanconandTchoubar(1977a,1977b),Tchoubaretal.(1982)establishedthattheprinci-paltypeofdisorderinnaturalkaoliniteisthedisplacementofthevacantoctahedral

简介：IntroductionRutile,acommonoxidemineral,widelyoccursindifferentgeologicalenviron-ments.Inigneousrocks,especiallyinplutonicrocks,itexistsasaminormineralingranularform,sometimesintheformoflargecrystalsinpegmatites.Asanaccessarymineral,rutilecanbefoundinmanymetamorphicrockssuchasamphiboliteandeclogite.Itisnotararecasetofindrutileinsedimentsasadetritalmineral.

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简介：Theexperimentsongoldsolubilityinaminoacidsolutionmdicatethatgoldisveryintensivelysolubleinaminoacid(orotherorganicacids),whichisextensivelypresentingeologicalbodies,andismostsolubleinhistidine.Thetemperatureandconcentration,acidityandtypeofaminoacidinthesolutionareimportantfactorsaffectinggold-aminoacidcomplexing.Thesolubilityofgoldinaminoacidisdifferentunderdifferentconditionsoftemperature,aminoacidconcentrationandpHvalueofthesolution,At80℃andpH=6-8,goldismostsolubleinaminoacid.Golddispersedinwaterandrockscouldbeconcentratedandtransportedbyaminoacidandthenprecipitatedinfavorableloci.Aminoacidsmighthaveplayedanimportantroleinmetallogenesisaswellasintheformationofsourcebedsofgold.Nitrogen,oxygenandsulfurinaminoacidmighthavereactedwithgoldtoformsolublecomplexions.

简介：Onthebasisofthecarbonisotopiccompositionsofmethane(CH4)anditshomologuesandthedifferencesinisotopicvaluesforCH4andethane(C2H6)andthecorrelationandcompositionalchar-acteristicsofhydrocarbongases,theauthorhasproposedageneticclassificationofnaturalgasesintheoil-gaszone.Theyareclassifiedasbiogeneticandabiogeneticgasesintermsofthetypesofhydrocarbon-generatingprecursors(orparentmaterials)andtheirthermalevolutionstages.Biogeneticgasescanalsobefurtherdividedintotwoseries:biochemicalandthermochemicalgases,withthelat-terformedatdifferentevolutionstages.Gasesgeneratedfromtype-Iand-II1organicmatterarecalledoil-seriesgases,thosefromtype-III,coal-series,andthosetype-II2,mixture-typegases.Gasesgeneratedfromtwoormorethantwotypesofprecursorsarecalledmixture-sourcegases.Accordingtothosementionedabove,naturalgasesfromthemajoroil-gaspoolsintheSichuanBasinhavebeendiscriminantlyanalyzed,andtheresultsareconcordantwiththedistributionandde-velopmentofhydrocarbon-sourcerocksaswellaswiththeircharacteristics,indicatingaprospectiveapplication.

简介：Thehumificationdegreeofpeatisasignificantclimaticproxyforpaleoclimatechange.Usingthealkali-extractionmethod,atimeseriesofabsorbancevaluesoftheHanipeatland,NortheastChina,wasdetermined,whichisusedasanindicatorforthehumificationdegreeofpeat.Combinedwith14Cdatingdataofpeatcellulose,andcomparedwithδ18Oandδ13CtimeseriesofthecelluloseintheHanipeatland,theevidencefortheexistenceof14kapaleoclimatewasprovided.Higherhumificationdegreeshintawarmer-wetterclimate,andviceversa.ItalsoreconstructsthefourstagesofHoloceneclimateevolutioninthisregion:11.5–9.8calkaB.P.,warmandwetperiod;9.8–9.0calkaB.P.,coldanddryperiod;9.0–4.8calkaB.P.,warmandwetperiod;and4.8–0calkaB.P.,warm-wetanddry-coldalternationperiod.Meanwhile,itisrevealedthattheabruptclimateshiftssignalssuchasthe'8.2ka'eventandthe'4.2ka'event.ResultsshowedthattheHanipeathumificationdegreeisofsensitiveresponsetopaleoclimatechange.Therefore,itisafeasiblemethodtoanalyzetherelationshipbetweenpaleoclimatechangeandpeathumificationdegree.

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简介：Calculations,accordingtosomeopen-systemmodels,pointoutthatwhileastatisticallysignificantdiscrepancybetweentheresultsoftwoU-seriesmethods,^230Th/^234Uand^227Th/^220Th(or^231Pa/^235U),attestsarelativelyrecentandimportanturaniummigration,concordantdatescannotguaranteecloses-systembehaviorofsample.Theresultsof20fossilbonesfrom10Chinesesites,19ofwhicharedeterminedbytwoU-seriesmethods,aregiven,Judgingfromindependentagecontrols,8outofthe11concordantagesetsareunacceptable,Theresultsinthispapersuggestthaturaniummaycycleintooroutoffossilbones,suchgeochemicaleventsmaytakeplaceatanytimeandnoknownpreservingconditionmaysecurelyprotectthemfrombeingaffected.Soforthesitewwehavestudied,theU-seriesdatingoffossilbonesisoflimitedreliability.

简介：Linnan潜水艇下垂是Linpan油地区的主要的油制片人。基于油组作文，煤气的层析数据和简历标记分析，从不同油矿的原油在组作文极大地变化了并且在先锋类型，原油成熟和烃depositional的方面显示出明显的异质，这被显示。根据源岩的特征，三张油人口能被区分，即，南部、北、过渡的油人口。根据水库以后的重做的过程，而且，媒介在成熟，六个油家庭和12个亚科产生烃的环境和差别调节是distinquished。综合研究建议在原油作文导致如此的异质的因素主要包括不同源岩，多级式在油/气体移植，水库异质和各种各样的水库以后的第二等的改变期间油/气体收费、geo色析法的效果。

简介：BiogeochemicalinvestigationofTamarixaphylla,aplantspecies,oftheLas-belaareahasbeenmade.Thisareamainlyconsistsofophiolitesassociatedwithsed-imentaryrocksofJurassicandCretaceousage.QuantitativeestimationsofimportantbiogenictraceelementssuchasFe,Mn,Pb,Zn,Cu,Cr,Ni,andCohavebeencarriedout.Anomalousconcentrationsoftheseelementsinplantspeciesofcertainregionscanbeusedtolocatepossibleoccurrencesoforedepositsinthearea.Thecomparativestrdyalsorevealsappreciablevariationsinthecompositionoftraceelementsinplants.ThepossiblecausesofvariationintheconstitrentsofTamarixaphyllafromdifferentlocalitieshavebeendiscussedinthelightofbedrocknature,mo-bilityofelementandaverageabundanceintheplant.

简介：Inthispapertheseven-stepcontinuousextractingmethodwasemployedinthestudyofchemicalformsofthesixheavymetalsCo,Zn,Pb,Cu,CrandMn,Theresultshowsthattheetalsinthelateritearepresentinthechemicalformofcrystallineironoxidesandresidues,andtheyaretransformedtowaredorganicandexchangeableformsinthesurfacesoil.Linearregressionanalysisindicatesthattheaboveheavymetalshaveapositivecorrelationwiththecrystallineironoxideminerals.Thecrystallineironoxidemineralshaveaveryimportantroletoplayintheenrichmentofheavymetals,especiallythesolidcomponentsinthelaterite.

简介：Organicmatterwasexperimentallyextractedbysupercriticalfluids(CO2+1%isopropanol)frompetroleumsourcerocksofdifferentthermo-maturitiesatdifferentburieddepthsinthesamestratigraphicunitintheDongyingBasin.Theresultsshowthatsupercriticalfluidextraction(SFE)ismoreeffectivethanSoxhletextraction(SE),withhigheramountsandgreatervarietiesofhydrocarbonsandsolubleorganicmatterbecomingextractive.ThesupercriticalCO2extractionisthereforeconsideredmorevaluableinevaluationofpetroleumsourcerocksandoilresources,particularlythoseofimmaturetypes.

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简介：ThegeochemistryofthebasicvolcanicrocksatthesouthmarginoftheQinlingorogenicbelt(SMQOB)suggeststhattheywereformedinanintraplatetectonicsetting.TheREEdistributionpatternsshowtheserocksarestronglyenrichedinLREEwithhigh∑REE,andtheirtraceelementsgeochemistryissimilartothatofcontimentalfloodbasalt.AlltheaboveevidencesuggeststhattheCaledonianbasicvolcanicrocksintheSMQOBweretholeiiticbasaltsformedinanintraplatespreading-initialrifttectonicsetting.Thecharacteristicsofregionalgeologyandgeochemistryindicatethattherewasanintraplatespreading-rifttectonicsettingbetweentheSouthQinglingblockandtheYangtzeblockintheCaledonianepoch.ThedynamicspreadinginthisdistrictbeganintheEarlyCaledonianandthentheintraplatespreadinginitialriftswereformedintheLateCaledonian.AsaresultofspreadingoftheTethysandgeodynamicprocessesindeepmantle,theMianlue-HuashanoceanicbasinwasformedbetweentheQinlingblockandtheYangtzeblockinDevonian,andtheQinlingmicroplatewasseparatedfromthenorthernpartoftheYangtzeplate.

简介：ThePbconcentrationsofatmosphericaerosolintheChukchiSeaoftheArcticvarywithintherangeof0.167-0.962ng/m3,withanaverageof0.532ng/m3.Theseconcentra-tionvaluesare200timeshigherthanthenaturalbackgroundvaluesofsnowsamplesthere.Cal-culationofthePbenrichmentfactorofaerosolindicatesthattheocean-andcontinent-sourceleadaccountfor9.23%and0.01%,respectively,butindustriallyreleasedPbaccountsformorethan90%oftheatmosphericPb.ThePbisotopiccompositionofaerosolhasrevealedthatthesourcesofleadfromindustrialleadthatcausespollutionincludemainlythewesternpartofNorthAmerica,EastEuropeandtheformerSovietUnion.ThecalculationofthetotalfalloutfluxofPbindicatesthatthemeanvalueofinputfluxintotheChukchiSeais0.02mgm-2a-1,equivalenttothatofsouthernPacificbutslightlylowerthanthatofnorthernIndianSeaandsouthernAtlantic.ItisevidencedthatthePbinputfluxintotheChukchiSeaisfarlowerthanthatofftheBalticSea,theNorthSeaandtheMediterraneanSea.

简介：Pressuresolutionisacommonphenomenoninmassivesulphidezinc-leaddepositsofwesternCanadaandmayhavebeenanimportantfactorleadingtothemobilizationofore-formingmaterialsduringdiagenesis,deformationandmetamorphismofsedimentaryores.Thecontrolofductileshearzonesovergoldmineralizationcouldbeexplainedinviewofpressuresolutionofgold-bearingminer-alsundershearingstressandthetesultantmobilizationofthismetal.