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45 个结果
  • 简介:TwoGSSPs(GlobalStandardStratotypeSectionandPoint)fortheOrdovicianSystemwerededicatedinSwedenon25&26May2003.TheceremonieswerewellorganizedandwellattendedandincludednotonlytheunveilingofformalplaquesdescribingtheGSSPsbutalsothedrivingof“goldenspikes”.

  • 标签: 标准层型 奥陶纪 瑞典 地质学
  • 简介:BGHMS:AGeohistoryModelingSystemforCratonicBasinsYeJiaren;LuMingd;WangFeiqiao(DepartmentofPetroleumGeology,ChinaUniversityofGe...

  • 标签: geohistory MODELING cratonic BASIN MATHEMATICAL model
  • 简介:TheDachangtin-polymetallicorefieldinnorthernGuangxi,China,liesinamid-latePaleozoicriftthatbordersupthesouthernboundaryoftheJiangnan-XuefengMassif.Asagiantoredeposit,itdepositedinmiddleoftheNandang-Hechimetallogeniczone.TheorehostingstrataareoftheDevonion,whichshowstheevidentcharacteristicsofpolymetallicelements,i.e:,Sn,Zn,Pb,Sb,As,Cu,Ag,In,Ge,Cd,etal.,andover1000000ttinreserves.

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  • 简介:1.StructuralAnalysisThroughworkinginDinxinngareaandanalyzingdataongeology,geophrrics,geochemistryandsooeinlowerYangzidiwasystem,aconclusionhasbcendrawnthatthereexistsastructurespotenlofmultilevel,multistngeandmultitypeglidingnappesanddetachmentfaultsbetwccnJiangnangcodomepetemandChangfongRiverinlowc

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  • 简介:INTRODUCTIONThepaleocontinentalmargins,characterizedbyactivein-teractionbetweenearthcrustandmantle,complicatedtecton-icmoveme...

  • 标签: paleocontinental margin METALLOGENIC SYSTEM NORTH China
  • 简介:Accordingtotectono-stratigraphicaldivisionprinciple,differentunitsinKangguertageHuangshancollisionzone,EasternTianshan,aredividedintoorderanddisordertwotypesofstratum-rockassociations,whichbelongtotwokindsofdifferenttectono-volcanicactivitybelts.Thecollisionororenyandductileshearzonehaveastrongspace-timecoupling.Basedontheislandarcbearingvolcanicrockonbothsidesofthecollisionzone,timeofore-formingandrock-forming,characteristicsofcollisiongranit,geochemicalprovince,specialmultistagecollisionorogenyandintracontinentalorogenybasin-formingdevelopedfeatureshavebeenfound.Goldandcopperdeposits,withtherelationtothecollisionorogeny,aredividedintosevengenetictypes.Thetenmetallogeniczonesareclassifiedintotwokindsofore-formingsystemofpaleo-continentalmargin.Metallogenesisofgolddepositscanbeclassifiedintofivestages.Goldandcopperdepositsaredistributedinbeltswiththerelationtothedevelopmentofthecollisionorogeny.Thedistributionofmainlargescalecopperdepositsinthenorthpartofthecollisionzoneandmostlarge-middlescalegolddepositsinthesouthpartofthecollisionzonecandirecttheprospectingforgoldandcopperdeposits.Theactualtargetsareputforward.

  • 标签: COLLISION TECTONICS COLLISION OROGENY intra-continental OROGENY
  • 简介:Basedonasystematicanalysisaboutthedesignprinciples,systematicobjectives,clients'demandsandfunctionalmodulesoftheregionalkarstdesertificationdisasterinformationsystem,asystematicapplicationplanwasproposedinthispaperthatthemainstreamtechnologieslikeCOMGIS,etc.canbeusedforsecondarydevelopment,andDu'anYaoAutonomousCountyofGuangxiwastakenasanexampletoillustratetheapplicationofgeographicalinformationsystemindevelopmentofkarstdesertificationdisasterinformationsystem,andtoprovideafeasibleplanforrealizationofaccessorydecisioninformationaimingforsustainabledevelopmentofkarstdesertificationarea.

  • 标签: 喀斯特 荒漠化 岩石 灾难信息系统 地貌
  • 简介:微生物引起的分子的生态学技术,它被开发根据分子,在在构造快速的渗入(CRI)学习细菌被使用系统。这些技术在更好在CRI通过微生物引起的nucleic酸顺序碎片的分析描述在微生物引起的组结构和氮污染之间的细菌的差异,微生物引起的社区分发,和关系是很有效的。结果进一步揭示了污染的移动机制,它为在CRI的废水处理的改进是必要的。

  • 标签: 微生物分子生态学 人工快速渗滤系统 技术分析 细菌多样性 国际广播电台 生态学技术
  • 简介:Theexpertsystemforstatisticalpredictionofmineraldepositsonmiddleandlargescalestakesthesystemofscientificexplorationtheories,criteriaandmethodsproposedbyProfessorZhaoPengdaasthefieldexpertknowledge.Atpresentthedevelopedsystemfocusesontwoaspects:syntheticexplorationandquantitativeexploration.Amongthethreebasictheoriesforthepredictionofdeposits,ithighlightstheapplicationsofseekinganomalytheory.Thissystemischaracteristicinthedeterminationofgeologicalbackground,thestudyofgeologicalanomaliesandthedelineationofgeologicalbackground,thestudyofgeologicalanomaliesandthedelineationofmineralizationanomalies.Thesystemcombinescloselytheknowledgebase,methodbaseanddatabase,integratestheinputandoutputinformationofmulti-sourcesandmulti-variables,data,graphsandimagineprocessingsystemandinquiringsystemasawhole.Sothesystemcanmeetingeneralallkindsofdemandsinstatisticalpredictionofm

  • 标签: statistical prediction of mineral resources EXPERT
  • 简介:Rehai,位于云南省的Tengchong暴烈的地热的区域的南部的部分的一个高温度的热水的系统,被集中的热水的活动描绘。在到目前为止被取样了的Rehai的温泉是Na-HCO<潜水艇class=“a-plus-plus”>3-Cl或Na-HCO<潜水艇class=“a-plus-plus”>3在Diretiyanqu除了那跳(经历地热的区域)它是一个酸硫酸盐弹簧。在有岩浆的高温度的热水的系统的同样典型的典型解决方案成分作为热采购原料,Cl,B并且作为在Rehai,地热的水主要从magmatic液体的增加发源。然而,两magmatic液体和水库hostrocks的溶解混合在Rehai地热的水里贡献氟化物的丰富,尽管他们的氟化物集中被由在答案氟化物和钙集中之间的一种清楚的否定关系显示了的荧石的溶解度首先控制。高得多的集中那么<潜水艇class=“a-plus-plus”>4<啜class=“a-plus-plus”>在Diretiyanqu春天的2作为与在Rehai的另外的弹簧outcropping相比暗示相当不同的geochemical开始这个弹簧。H<潜水艇class=“a-plus-plus”>2S富有的蒸汽,在煮过程期间与深地热的液体分开了(即,断热的冷却),能上升到它与冷地下水被混合并且氧化的浅含水土层。尽管仅仅这种类型的一个弹簧在这研究的领域调查期间被取样了,充满硫酸盐的温泉通常是的酸在这形成了举止。

  • 标签: 热液系统 热海水 中国西南地区 地热水资源 酸性硫酸盐 溶质
  • 简介:1.ObjectivesAsabout99%ofthenaturalgashydrate(NGH)resourcesarestoredontheseafloor,itisinevitablethatinitsprocessofexplorationandproduction,therewillbegeohazardssuchasmethaneleakage,seabedsubsidence,ecosystemdamageandevenlandslide.Therefore,asetofintegratedsystemsforenvironmentalmonitoringintheprocessofNGHproductionhasbeenproposedintheconsiderationofenvironmentaldisastersthatmayariseintheprocessofhydrateproduction.

  • 标签: THREE-DIMENSIONAL MONITORING SYSTEM HYDRATES
  • 简介:Thegeochemicalbehaviorsofhydrogenandoxygenisotopesinthehydrothermalsystemandtheirinher-entrelationshipwiththewater/rockexchangearediscussedinthispaperInadditiontothetemperaturecon-ditions,theeffectiveW/RratioisanotherfactorcontrollingthechangesinHandOisotopecompositionsofthealteredrockandhydrothermalwater.Besides,theapplicationandgeologicalsignificanceofthewater-rockexchangetheoryarealsodiscussedinthelightoftheHandOisotopecompositionsandtheirvariationcharac-teristicsofthemineralizinghydrothermalwaterandalteredrocksfromseveralmineraldeposits.Finally,abriefevolutionalmodelofHandOistotopecompositionsofmeteoricandmagmatichydrothermalwatersinahydrothermalsystemisgiven.

  • 标签: HYDROTHERMAL system ISOTOPE FRACTIONATION mechanism water/rock
  • 简介:<正>1IntroductionThereexistcalciumandsulfateionsoutsidesodiumchlorideinsolutionminingforcalciumsulfatebrine.Thecalciumandsulfateionsnotonlyaffectthepurityofthevacuumsaltproducts,butalsoincreasethescalingofvacuumevaporationtanksandbrinereusingpipes.Additiveshavecertainimpactsonthecrystallizationdynamics(Randolphetal.,1971).Thecrystallization

  • 标签: GYPSUM TYPE BRINE calcium SULFATE dehydrate