简介：Thecrust-mantletransitionzone(CMTZ)isanimportantsiteformassandenergyexchangebetweenthelowercrustanduppermantle.SeveralkindsofCMTZexistbeneaththecontinentofChina,whichshowdifferentseismicreflectioncharacteristicsandarecomposedofdifferentrockassociations.Inthispaper,weidentifythreetypesofCMTZinthecontinentofChina.(a)TheCMTZbeneaththeTibetPlateauexhibitsagrid-shapedseismicreflectioncharacterizedbyrandomandreticularhighandlowseismicvelocitylamellae.Itisabout30kmthick,comprisingbothmaficgranulitesoflowercrustandultramaficrocksofuppermantle.SuchlithologicalassociationandseismicvelocitystructurewereinheritedfromthecrustaloverthrustandoverlappingduringtheCenozoiccollisionbetweentheIndianandEuro-Asiancontinents;Thecorrespondingcrustmovementisstillveryintenseinthisregion.(b)TheCMTZunderneathNorthChinaBlockisusuallycomposedofathinnerstrongpositivevelocitygradientlayerwithdualpropertiesintherockassociations.ThissuggeststhatthecrustisstillactiveintheNorthChinaBlockaftersignificantlithosphericthinningandthermalaccretion.(c)TheCMTZintheremainingplatformbasinsofChinaischaracterizedbyarelativelysharpseismicdiscontinuityandaclearlithologicalboundarybetweenthelowcrustanduppermantle.SuchfeaturesoftheCMTZbeneathOrdosbasincorrespondtoweakcrustalmovementafteralongperiodofisolationfromthermo-tectonicoverprinting.

简介：Withthetechnologicaldevelopmentofexploitationandseparation,theprimarysourceoflithiumhasgraduallychangedfromoretobrine,whichhasbecomethemainrawmaterial,accountingformorethan80%ofthetotalproduction.Resourcesoflithium-bearingbrineareabundantinChina.Thispaperhassummarizedthespatialandtemporaldistribution,characteristics,andformationmechanismofthelithium-richbrineinChina,aimingtoprovideacomprehensivesetofguidelinesforfuturelithiumexploitationfrombrines.Lithiumbrinesusuallyexistinmodemsalinelakesanddeepundergroundsedimentaryrocksassubsurfacebrines.ThemetallogenicepochofChina'slithium-richbrinespansfromtheTriassictotheQuaternary,andthesebrinesexhibitobviousregionaldistributioncharacteristics.Modemlithium-richsalinelakesarepredominatelylocatedintheQinghai-TibetPlateau.Incomparison,thesubsurfacelithium-richbrinesaremainlydistributedinthesedimentarybasinsofSichuan,Hubei,Jiangxi,andthewesternpartoftheQaidamBasin.Lithium-richsalinelakesarechloride-enriched,sulfate-enriched,andcarbonateenriched,whilethedeeplithium-richbrinesaremainlychloride-enriched.Onthewhole,thevalueofMg/Liindeepbrineisgenerallylowerthanthatofbrineinsalinelakes.Thegenesisoflithium-richbrinesinChinaisnotuniform,generallytherearetwoprocesses,whicharerespectivelysuitableforsaltlakesanddeepbrine.

简介：TheprecisecorrelationoftheOrdoviciansuccessionsindifferentfaciesisdifficultduetothecomplexchangesofthetecto-paleogeographyinSouthChina.Basedonpreviousstudies,theauthorsrecognized103rdgradesequences,i.e.,Osq1toOsq10inascendingorder,bytheintegratedstudyofchronostratigraphy,biostratigraphyaswellastheanalysisonthesedimentaryfacies.TheauthorsareconfidenttocorrelatetheOrdoviciansuccessionspreciselyindifferentfaciesinanisochronousstratigraphicframeworkwiththeapplicationofthemethodofsequencestratigraphyandcorrelation.

简介：这份报纸为对地震导致的流动变化应答、敏感的二个地热的春天组调查了水的化学。地震监视为他们的在有在Xinyi城市Xijiang温泉和Fengshun县Shihu温泉的保存得很好的自然流动系统的居住区域被赞成。温泉在南部的瓷器广东省在温度和流动率是典型的。物理、化学的条件在内心深处在热来源是经由地观察和数字实验质问到地址的地震，液体流动，反应溶质运输和热转移，而是遗体上的重要限制。在这份报纸，我们在流动率，温度，或水的化学上做了每日、年度的观察。我们为水来源，为K长石和钠长石稳定性的平衡阶段图，和Na-K-Mg作为tracers采用了锶同位素为热水库温度的图。在Xijiang温泉的丰富的亚硫酸盐内容被讨论。我们的主要发现是深差错弹簧被低减小氧化潜力描绘在在200-附近，150mV和相对大的日报流动变化。结果关于地震监视和预言和地热的水库在地地点上提供科学背景特征。

简介：TheJiamusimcdianmassifislocatcdaboutlittlcXinganlingtoLaoycling,casternHeilongjiangProvince.Beinginaccordwiththediwathcory,thcJiamusipalaco-mcdianmassifdevclopspre-geosyn-clinlarchacansialiccrust.KhondalitescricsinthcJiXidistrictmaybcrcputcdasrcprcscntivc,isotopicageofwbichis25OOMa.ThcrcarethcDongfc

简介：ABurgessShale-typebiotais,inpart,characterizedbyawidediversityoftaxaandsoft-partpreservation.Eachprovidesuniquehistoricalinsightsintoearlymetazoanevolution.Amongthemorethan40globallydistributedbiotas,theearlyCambrianChengjiangandMiddleCambrianBurgess-typebiotasarethelargest.TheKailiBiota,fromtheearliestMiddleCambrianofGuizhou,China,containsrepresentativesof110metazoangenerabelongingto10phyla.Itcontainsmanywell-perseveredsoft-bodiedspecimens.ThisChinesebiotahasbecomethethirdmosttaxonomicallydiverseBurgessShale-typefauna.BecausetheKailiBiotaformedinanouter-shelfenvironment,itsmainfaunalcharacterislargenumbersofeocrinoidsandplanktoictrilobites.TheKailiisyoungerthantheChengjiangBiotabutolderthantheCanadianBurgessShaleBiota;itshares30generawiththeChengjiangand38generawiththeBurgessBiota.TheKailiBiotadisplaysatapbonomicwindowtothediversificationandevolutionofmarineoffshoreorganismscovering5.13millionyearsbetweentheEarlyandMiddleCambrian.

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简介：BeddedchertsoccurringintheEarlyPermianGufengFormationintheLowerYangtzeregion,easternChina,arenearly20-80minthicknessandcontainvaryingamountsofradiolariansandspongespicules.TherearethreetypesofsectionfortheGufengFormation:chert,carbonateandchert-carbonatemixingtypes.Beddedchertsmainlyoccurinthefirstandthirdtypesofsection.Thedepocentresofsilicaaremarkedbysomesmall(notlargerthanafewthousandsquarekilometresinarea)rhombicorelliptichollowsandtheirformationwascontrolledbyfaults.Argillaceousvolcanicrocksinchertsoccurasnumerousthinlayers.BeddedchertsarecharacterizedbyhigherFeandlowerAlcontents,enrichmentinsuchtraceelementsasAs,Sb,Bi,Ga,Au,AgandCr,lowertotalREEabundance,negativeCeanomalyandvaryingdegreesofHREEenrichment.Thesecharacteristicsareimportantevidenceforhydrothermalcherts.Minoramountsofsubstancesofnon-hydrothermaloriginaremixedinthecherts.Thetempera

简介：1.ObjectivesSouthernQinghai-northemTibetpermafrostregionisaplacehavingthemostwidespreadandmostdevelopedpermafrostinChinawithgoodmineralizationconditionsandprospectingpotentialsforgashydrate(ZhuYHetal.,2011).In2011,ChinaGeologicalSurveyinitiatedaspecialnationalprogramentitled"Gashydrateresourceexplorationandtrialmining",whichsignaledapreludetoacomprehensivegashydratesurveyinsouthernQinghai-northernTibetpermafrostregion.Sofar,appreciableprogresshasbeenmadeinthegeological,geophysical,geochemicalanddrillingsurveyacrossanumberofkeyblocks.Thispaperisintendedtoexaminethefundamentalconditionsforgashydratemineralizationbasedonpreviousfindings,delineatefavorablezonesforgashydratemineralization,andtomakecontributionstotheonshoregashydrateresourceexplorationinChina.

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简介：Xianshuihe差错地区是一个seismo基因的差错地区左侧面在西南中国滑倒。自从1725，59Ms≥5.0地震沿着这个差错地区发生了，包括18Ms6.0-6.9和八Ms≥7.0地震。Xianshuihe差错地区的地震风险是对西方的四川经济走廊的大、现实主义的威胁。基于以前的研究，我们执行了地在差错地区的地质的调查和遥感解释。另外，地球物理的调查，trenching并且标明日期年龄在关键部分被进行更好理解差错地区的几何学，空间分发和活动。我们推断把差错地区划分成二部分：西北部分和东南分开，与总数八片断。他们的晚第四级滑动率在11.5mm/a的一个范围变化-(3±1)mm/a。Xianshuihe差错地区的地震活动经常、强壮，期刊，并且重新发生。联合历史的地震的空间、时间的分发，Xianshuihe差错地区的地震危险被使用在不同差错片断引起的地震的大小和频率之间的关系预言了。预言结果证明在Daofu和Qianning之间的片断有Ms≥7.0地震，当在Shimian和Luding之间的片断是可能的有地震时关于Ms7.0。建立GPS或表面排水量的基于InSAR的即时监视网络盖住Xianshuihe差错地区，和地震的一个早警告系统并且张贴地震geohazards盖住主要居住区域被建议。

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简介：FocusingontheYangtzeRivereconomiczone,thepreviousgeologicalresearchesaresystematicallysummarized,resourcesandenvironmentconditionsandmajorgeologicalproblemswhichareneedingtobeconcernedinlandplanningandconstructionarestudied.Theresultsshowthattheresourceconditionsofcultivatedland,shalegas,geotherm,lithiumandsoonaresuperiorintheYangtzeRivereconomiczone,andtheresourcesandenvironmentconditionsareconducivetodevelopthemodernagriculture,cleanenergyindustryandstrategicemergingindustries.3×1013m^2farmlandswithoutheavymetalpollutionareconcentrated;therearethreenationallevelshalegasexplorationanddevelopmentbaseswithexploredreservesof5.441×1011m^3;geothermalavailabilityis2.4×109tofstandardcoaleachyear,equivalentto19%oftheamountofcoalin2014;Asia'slargestenergylithiummetaloredepositisfound.InsomepartsofYangtzeRivereconomiczone,therearesomemajorgeologicalproblemssuchasactivefaults,karstcollapse,groundsubsidence,landslide-collapse-debrisflow,affectingtheriver-crossingchannels,high-speedrailway,urbanagglomerationandgreenecologicalcorridorplanningandconstruction.Thoseproblemsshouldbeconcerned,andtherelevantsuggestionsandcountermeasuresareputforward.Meanwhile,theideastofurthersupportthedevelopmentoftheYangtzeRivereconomiczoneareputforward.

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简介：1.ThecrustalevolutionprocessofLiujiangbasinSituatedinHehuaiGcodeprcssionsystcmofNorthChinaGcodeprcssionrc8ion,theLiujiangbasinbclongstoLiujiangGeodcpression,SbanhaiguanGeodome,yanshanGcodomeSeries.Tbebasinisanasymmetr)cspoc1ine.MetamorphicrocksofPrcsiniansrrtemwidelydistibutcdatthcrimofthebasinmakeu

简介：Three-componentOceanBottomSeismometers,portablelandstationsandmarineairgunseismicsourceswereusedtocarryoutanonshore-offshoredeepseismicprofileinnortheasternSouthChinaSea.Thisprofile,orientatedinNNW-SSE,wasaslongas500kmandperpendiculartothestrikeofregionaltectonics.TheoffshoredatawereprocessedinTaiwanOceanUniversityusinganumberofavailablesoftwareandtheonshoredatawereanalyzedinSouthChinaSeaInstituteofOceanologybynew-writtenprogramsandpublicsoftware.Preliminaryresultsshowthattheseismicdataareingoodqualityandcontainrichinformationofdeepstructure.Seismicphases,e.g.Pg,PmPandPn,areidentifiedintheoffsetrange5～220kin,whichwillprovideanimportantdatasetforthedeepcrustalstructureandoil-gasbasinevolutionstudiesofthisregion.

简介：<正>O.IntroductionGoldiscommonlyconsideredaninertelement,butitsgeochemicalpropertiesarenotsoinert.Intheareaofgolddepositstheconecntra-tionsofgoldinwaterarehigh.Itcannotonlymigrateinwater,butalsoeasilyprecipitateifthechemicalconditionschange.Thisisimpor-tantbothinprospectingforgoldbyhydrogeochemicalmethods,andingoldformation.

简介：AfterthebreakthroughofshalegasexplorationanddevelopmentintheOrdovicianWufengFormation(Fm.)andSilurianLongmaxiFm.ofChongqingJiaoshibaarea,Changning-Weiyuanarea,etc.inSichuanbasin,aseriesofdiscoveryandbreakthroughwereobtainedbyChinaGeologicalSurveyintheCambrianNiutitangFm.andSinianDoushantuoFm.shaleoftheareaswithcomplicatedstructureoutsideSichuanbasin.BasedontheunderstandingofthelawofshalegasenrichmentinLongmaxiFm.inthebasin,thispaperputsforwardthreeelementsoftheformationandenrichmentofshalegas,whicharethe“Source”,the“Diagenesis”andthe“Accumulation”,afterdeeplystudyingthelawshalegasenrichmentandaccumulationinSinian-Cambrianreservoirofthecomplexstructureareaoutsidethebasin.The“Source”meansthesedimentaryenvironmentandpetrologicalcharacteristicsoforganicshale.The“Diagenesis”meansthebasintectonicsubsidenceandhydrocarbongenerationandexpulsionprocessoforganicmatter.The“Accumulation”meansthetectonicupliftandshalegaspreservation.ItisproposedthattheSinian-CambrianandOrdovician-SilurianblackshaleseriesinthemiddleandupperYangtzeregionofsouthernChinawerebothformedinthedeep-watershelfenvironmentofrifttroughandforelandbasinrespectively.Thedessertintervalswereformedinthestrongreductionenvironmentundertransgressivesystemtract.Theshalelithologybelongstocalcium-siliceousandcharcoal-siliceousrespectively.BasedonthesummaryofstructuralevolutioninYangtzearea,thecorrelationofstructuralburialdepthwithshalediagenesisandthecouplingevolutionoforganicmatterwithporestructurearediscussed.Combiningwithstructuralstyles,thepreservationconditionsofshalegasarediscussed.Fivetypesofshalegasreservoircontrolmodelsarefurtherdescribed.Twotypesoffutureexplorationdirections,whicharereversefaultsynclineandpaleo-upliftmarginincomplexstructuralareaoutsidethebasin

简介：一张新oviraptorid恐龙Jiangxisaurusganzhouensis情报。etsp。nov，从Ganzhou城市的上面的白垩纪Nanxiong形成基于一架部分骨骼被树立，江西省。新taxon不同于另外的oviraptorids在弱更低的颚的downturned坛，有在附近是的height-to-length比率的伸长大部分的上颚20%并且到大约0.70的肱骨的半径的长度比率。这种不仅把一个新成员加到oviraptorid恐龙，而且在南部的中国关于oviraptoridpaleogeographical分发提供更多的信息。