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简介：在我六年级的时候,我的老师问过我们这样的问题：＂‘做正确的事’对你来说意味着什么？＂她要求我们利用周末的时间好好想想,也可以问父母或其他任何我们认为可能有好答案的人。星期一我们要交出一篇关于＂‘做正确的事’意味着什么＂的文章,并且准备履行各自的答案。

简介：Rheologicalpropertiesofpolyphaserocksplayanimportantroleinthedynamicsofthelithosphereandasthenosphere.However,suchfundamentalissueshavenotbeenwellresolved.Atheoreticalanalysishasbeenmadetodevelopexpressionsfortheflowlawsofpolyphaserocksintermsofthevolumefractionsandflowlawsoftheirconstituentphases.Theflowstrengthspredictedbytheproposedmodelforcommoncrustalanduppermantlerockssuchasgranite,diorite,diabaseandlherzolite,andforsynthetictwo-phasecompositessuchasforsterite-enstatiteandwaterice-ammoniadehydrateaggregatesareingoodagreementwithpreviouslydeterminedexperimentalvalues.Theproposedtheoreticalmodelallowsonetocalculate,tothefirstapproximation,theflowlawsofalargenumberofpolyphaserocksatgeologicconditionsbasedontheexperimentallydeterminedflowlawsofarelativelysmallnumberofmonomineralicaggregates.

简介：油的主要迁居的模拟实验在巨大的样品上被执行。结果证明从源岩产生的油在一个独立的油阶段形式被驱逐。高油逐出效率被观察。因而油的主要迁居不直接依赖于从源岩产生的油的数量。因此，尽管某源岩产出仅仅油的有限数量，油逐出比例高。很多气体油产生同时被生产。因此，这能被结束为油的主要逐出精力主要移植来自这些气体。

简介：Basedontherelationshipbetweenrockphysicalpropertiesandatomicstructuresofchemicalelements,thispaperdissertatesthecharacteristicsbetweenthedifferenceandchangeinthecomprehensivephysicalpropertiesofrocks,suchasdensity,elasticity,electricalpropertyandradioactivity,etc.Theexamplesinthispapershowthatthechangeofthecomprehensivephysicalparametersofrocksreflectsthechangeofatoms,molecules,mineralsandtheirconstitutionsinrocks,andtherearesomecorrelationsbetweentheseparameters.

简介：Recently,wecarriedouttheNationalNatureScienceFoundationofChina(No.41273033)andSpecialFundforBasicScientificResearchofCentralColleges(No.310827153407)andmadesomeadvancesasfollows.ThemainresearchachievementsofthePaleozoicvolcanicrocksinnorthwestChinaincludetwoaspects:

简介：Neoarchean变形mafic岩石在更低并且中间的WutaiComplexmainly包括变形斑粝岩，角闪岩和绿泥片岩。他们能根据球粒状陨石被细分进三个组规范的REE模式。在组#1的岩石被将近扁平的REE模式(La_n/Yb_n=0.86-1.3)描绘，最低全部的REE(29-52ppm)，并且弱对积极Eu异例否定(Eu_n/Eu_n~*=0.84-1.02)，将近完全原始的披风使模式和强壮的否定Zr(Hf)正常化异例。他们在REE和痕量元素的geochemical特征类似于海洋高原拉斑玄武岩的那些，它暗示这组岩石能表示太古代的海洋的外壳的残余源于一根披风羽毛。在组#2的岩石被中等全部的REE(34-116ppm)描绘，充实LREE(La_n/b_n=1.76-4.34)球粒状陨石与弱Eu异例使REEpatterns正常化(Eu_n/Eu_n~*=0.76-1.16)，并且否定Nb，Ta，Zr(Hf)，在使正常化的原始披风的Ti异例搜寻图。REE和痕量元素特征显示他们表示从一个亚弧披风发源的弧岩浆挤metasomatized导出byslab的液体。在组#3的岩石被最高全部的REE(61-192ppm)描绘，有稍微否定的Eu异例的最强壮的LREE丰富(La_n/Yb_n=7.12-16)(Eu_n/Eu_n~*=0.81-0.95)在球粒状陨石规范的图。在原语，披风使图正常化，这些岩石被大负异常在Nb描绘，Ta，Ti，对没有Zranomalies否定。他们代表从充实的亚弧披风楔发源的弧岩浆导出inslab融化。三组岩石暗示NeoarcheanWutaiComplex的形成与披风羽毛和岛弧相互作用有关。

简介：AnintegratedstudyofzirconU-Pbgeochronologyandpetrochemistry,togetherwithzirconLu-Hfisotopes,hasbeencarriedoutonthebasaltic-andesitictuffandvolcanicbrecciafromtheNamHangFormationandandesitictufffromtheMuang-NanFormationintheXaignabouliarea,whichhadbeenmappedasthePermian–EarlyTriassiconthe1:1000000geologicalmaporLateCarboniferousonthe1:200000geologicalmaps.ZirconU-Pbdatingofthreesamplesyieldedweightedmeanagesof235±2.6,232±1.4and278±2.8Ma,respectively,suggestingaLateTriassicoriginfortheNamHangFormationandanEarlyPermianoriginfortheMuang-NanFormation.Geochemically,theyarecharacterizedbydepletionsinHFSEs(e.g.,Nb,Ta,Ti)andhighLILE/HFSEratios,andtheyhavepositivezirconεHf(t)valuesof8.7–15.9,whichexhibitsthecontinentalarcvolcanicaffinityandpartialmeltingofsubductingoceanicslabinthemagmasource.Combinedwithspatialoccurrenceofthevolcanicrockandexistinggeochronologicalandgeochemicaldata,wesuggestthattheXaignabouli-LuangPrabangvolcanicbeltcanbelinkedtotheLoei-Phetchabunbelt.ThePermian–TriassicvolcanicrocksinthisbeltmightbeaproductoftheNanback-arcbasineastwardsubduction.

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简介：ThispaperstudiesRabinovitch'scompressionexperimentsongraniteandchalkandproposesanoscillatingdipolemodeltoanalyseandsimulatetheelectromagneticradiationphenomenoncausedbyfractureofrocks.Ourmodelassumesthattheelectromagneticradiationpulsesareinitiatedbyvibrationsofthechargedrockgrainsonthetipsofthecrack.Thevibrationsoftherockgrainsarestimulatedbythepulsesofthecracks.OursimulationsshowcomparableresultswithRabinovitch'scompressionexperiments.Fromthesimulationresults,itverifiesanassumptionthatthecrackwidthisinverselyproportionaltothecircularfrequencyelectromagneticradiation,whichispresentedbyRabinovitchetal.Thesimulationresultsalsoimplythat,byusingouroscillatingdipolemodeltogetherwithRabinovitch'stwoequationsaboutthecracklengthandcrackwidth,wecanquantitativelyanalyseandsimulatetheelectromagneticradiationphenomenon,whichisinducedfromthefractureoftherocks.

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简介：Basedonthermalsimulationexperiment,interactionsbetweenvolcanicfluidsandsourcerockswerestudied.Gasgenerationsinthedrysystemandfluidsystemunderdifferenttemperatureswereanalyzed.Theresultsshowedthatthevarioustypesofsourcerocksaresimilarincomposition,containinggaseousC1-C5hydrocarbons,H2andCO2whosegasyieldsincreasewithincreasingtemperature.ThegasyieldofsourcerocksoftypeisⅠthehighest,followedbytypeⅡ,andthatofsourcerocksoftypeisⅢthelowest,indicatingthattheyieldofhydrocarbongasesisrelatedtotheirhydrocarbongeneratingpotential.AlthoughthegeneratingpotentialoftypeisⅢthelowest,itcanstillberegardedasausefulgassourcewhenitisburieddeeplyenough.Thebasicvolcanicfluidrestrainsthegenerationofgaseoushydrocarbonsindifferenttypesofsourcerocks,butpromotesthegenerationofinorganicgases.

简介：Thereisadearthofinformationaboutthedistributionoftraceelementsinkerogenfromshalerocksdespiteseveralreportsontraceelementcompositioninmanyshalesamples.Inthisstudy,traceelementsinshalerocksandtheirresidualkerogensweredeterminedbyinductivelycoupledplasma–massspectrometry.Theresultsfromthisstudyshowredox-sensitiveelementsrelativelyconcentratedinthekerogensascomparedtotheshales.Thismaybeprimarilyduetotheadsorptionandcomplexationabilityofkerogen,whichenablesenrichmentinNi,Co,Cu,andZn.Fortherareearthelements(REEs),distinctdistributioncharacteristicswereobservedforshalesdominatedbyterrigenousmineralsandtheirkerogencounterparts.However,shaleswithlessinputofterrigenousmineralsshowedsimilarREEdistributionpatternstotheirresidualkerogen.ItisspeculatedthatthedistributionpatternsoftheREEsinshalesandkerogensmaybesourcerelated.

简介：TheMaomingBasinisoneamongstagroupofCretaceous-TertiarybasinsinSouthChina.347sampleswerecollectedfromdrillcoresMRandMBandsectionMS(110°54ˊE,21°45ˊN).MostofthelithologicalunitsareofTertiaryage.ThecoresincludetheLaohuling,Shangun,HuangniulingandYouganwoformations.TheMRcore(874minlength)hasrecordedthepolarityhistoryfromNormalZone18toNormalZone11ontheGeomagneticPolarityTimeScale(GPTS).Thestratawereformedfromabout42Mato32Ma,thatisfromLateEocenetoEarlyOligocene.Ameansedimentationrateofthisstratigraphiccolumnis8.1cm/ka.

简介：TheCarboniferousvolcanicrocksinwesternHainanIslandconsistofaseriesofoceanictholeiteandrhyoporphyrite,showingbimodalnature.Similargeochemicalcharacters,intermsofabun-dacesandrelativerationsofincompatibleelementsandREEandtheREEpatterns,betweenthebasaltandcontinentalrift-associatedtholeiiteindicatetheoccurrenceofLatePaleozoicriftinginthearea.Thebasalticmagma,withalowdegreeofevolution,wasoriginatedfromdeepmantle,show-ingcontaminationbylowcrustalmaterial.Therhyoliteisthoughttobeformedfrompartialmeltingofthecontinentalcrustbyhigherthermalflowinariftenvironmentratherthanfromfractionalcrystallizationofabasalticmagma.

简介：BasedonthediscussionontheintracontinentalorogenicigneousrocksformedafterIndia-Asiacollision(40or45Ma),theintracontinemalorogenicprocessesofQinghai-Xizang(Tibet)-Himalayaaretraced.Muscovite/twomicagraniteisconsideredasapetrologicalrecordofintracontinentalsubduction.Volcanicrocksofshoshoniteseriesarebelievedtobetheproductsoftheorogenicandoutsidecratoniclithosphereconvergence.Theintracontinentalorogenicigneousrocksaredevelopedonlyonthemarginsoftheorogenicbelt.Thepairingphenomenonoftheigneousrockzonesisregardedasoneofthebestsignstorecognizethespecialrangeoforogenicbelt.Thestageofmagmaticactivityisarepresentationandindicatoroforogenicepisode.ThreepairsoftheigneouseventsinOligocene,MioceneandPleistoceneandtheirspacedistributionindicatethreecorrespondingorogenicepisodesandthehorizontalexpansionacrosstheorogenicbelt,respectively,Onthenorthernandsouthernmarginsof

简介：Wudalianchi(五大连池)火山是有在东北中国的相当好的暴烈的风景的著名的第四级的。暴烈的岩石是有47.3wt.%的SiO2内容的电唱机碱玄岩，tephri响岩，trachyandesite，和玄武岩的trachyandesite54.2wt.%。高K2在Wudalianchi暴烈的岩石中的O内容建议他们可能分享普通钾的岩浆来源。，Wudalianchi暴烈的岩石的岩浆进化是类似的Laoheishan的新爆发产品(老黑山)和Huoshaoshan(火烧山)火山是稍微，更多比旧爆发材料演变，即，新爆发在的岩浆17191721从上述二座火山是在地下的房间的发展岩浆。Wudalianchi暴烈的岩石的主要斑晶是橄榄石，clinopyroxenes，和一些典型K富有的白榴石。各种各样形状融化包括从Laoheishan和Huoshaoshan火山的新爆发产品在橄榄石斑晶被发现。由电子，分析的微探查(EMP)，SiO2的内容和全部的碱显示出一个宽范围，建议pre暴发的岩浆可能是更复杂的，或melt包括是unhomogeneous。根据EMP结果，排除的硫从这评价，这被相信新爆发比Tianchi的千年爆发的高得多(天池)火山，当时排除的氯率是比Tianchi的低的大小火山。