学科分类
/ 1
15 个结果
  • 简介:Electromagnetictomography:consistencyofimagesandgroundwaterprospectingRUIFENG1)(冯锐)KUIXIANGMA2)(马奎祥)HONGGUO3)(郭鸿)CHANGQUAN...

  • 标签: electromagnetic TOMOGRAPHY in SITU radiation constant
  • 简介:Sediment-hostedgolddepositsarethemajortypeofgoldresourcesinchina,Concentratedmostlyinthetwo'TriangleRegios',theyaregenerallyhostedinfine-clasticturbidite,hydrothermalchetandmarlrangingfromcambriantoTriassicinage,structurallycontrolledbydomes,anticlinesandsecond-orderedfaults.TheyaresimilartotheCarlin-typegolddepositsinmineralassemblageandgeochemicalmarks,withanelementassociationcloselycomparabletothoseofmodernspringsandsubmarinehydrothermalsediments.Organicmattermayhaveplayedanimportantroleinmineralization.Theoresolutionmaybehydrothermallyalteredmeteoricwaterdevelopediareasoflocalgeothermalanomaly.

  • 标签: 沉积型金矿床 地质构造 地球化学 中国 找矿前景 有机地球化学
  • 简介:Oil-gasremotesensinginformationisobtainedfromsatelliteTMdatathroughgraphictreatmentinthelightofthehydrocarbon-microseepagetheory.Theninetargetareas(ofthreetypes)selectedonthisbasisconcidewellwiththeoccurrenceofnaturalgasesandhavebeenprovedbysubsequentprospecting.Plantsinthetargetgreasarecharacterized.asaresultofhydrocarbon-microseepage,byabnormalspectralfeatureswiththeabsorptionpeaksofchlorophyllshiftingtowardbluelight,reflectivityintherangeofvisiblelightincreasingandreflectivityinthenearinfraredregiondecreasing.

  • 标签: 贵州 油气成因 人造卫星 赤水地区 遥感数据 天然气
  • 简介:ShanjiadistrictofeastcrnHcbciProvinccislocatcdinsouthcrnlimbofEWtrcndingYanshangeodomechain,whichbe1ongstoHchuaidiwasystcmofNorthC!1inadiwarcgion.Inthestudiedarca,morethanlogolddcposits(occurrenccs)wcrcdistributed,includingShanjia,Xinglonggou,WangjiagouandWcizigougo1dMincs’Archcanmctamorphicrocksare

  • 标签:
  • 简介:TheLancangjiangtectoniczoneinWesternYunnanisanimportantmagmatic,metamorphicandtectonicmobilezoneofSouthwesternChina,whosegeotectoniclocationisveryunique.Itischaracterizedbycomplexgeologicalstructures,perfectlydevelopedstrata,frequentmagmaticactivities,,variousdegreesofmetamorphism,richoreresourcesandlotsofmetaldeposits,thusformedacentralizedzoneofmineralizationandalsoconstitutedoneoftheimportantmetallogenicbeltsofnobleandnonferrousmetaldeposits.

  • 标签: Crustobody COPPER DEPOSITS METALLOGENETIC perspectives Lancangjiang
  • 简介:Thesuperlargecontinentalvolcanicrock-typeuraniumdeposits,whichwerediscoveredabroadlongago,havenotyebeenreporteduptonowinChina.Thisisanimportantproblemthatneedstobeurgentlysolvedbyuraniumgeologistsatpresent.Inthispaper,onthebasisofanalyzingthemetallogenicsettingsandgeologicalconditionsofthesuperlargecontinentalvolcanicrock-typeuraniumdepositsdiscoveredintheworldalongwiththemetallogeniccharacteristicsofthoseofthesametypeinChina,thespace-timedistributionpatternsofcontinentalvolcanicsandthemetallogenicpotentialofmaintectono-volcanicbeltsinChinaarediscussed,andasyntheticconclusionhasbeendrawnthatthereisapossibilitytodiscoverthesuperlargecontinentalvolcanicrock-typeuraniumdepositsinChina.Moreover,itisevidencedthattheGanhang,Nanling,Yanliao,DaHingganLingandothertectono-volcanicbeltspossessfavorablegeologicalconditionsfortheformationofssuperlargeoredepositsofthecontinentalvolcanicrocktype.Theintersectingandoverlappinglocationsoftheaforementionedmainbeltswithothertectono-volcanic(-intrusive)beltsarethemostpotentialareaswherethesuperlargecontinentalvolcanicrock-typeuraniumdepositswouldbefound.

  • 标签: 火山岩 超大型铀矿床 金属矿床 地质条件 成矿作用
  • 简介:<正>O.IntroductionGoldiscommonlyconsideredaninertelement,butitsgeochemicalpropertiesarenotsoinert.Intheareaofgolddepositstheconecntra-tionsofgoldinwaterarehigh.Itcannotonlymigrateinwater,butalsoeasilyprecipitateifthechemicalconditionschange.Thisisimpor-tantbothinprospectingforgoldbyhydrogeochemicalmethods,andingoldformation.

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

  • 标签: 生物地球化学 金属矿床 找矿前景 植物 巴基斯坦 沉积岩
  • 简介:Thespectralcharactersofhydrocarbonsinsomeoil-bearingstrataandsoillayersoueroilandgasreservoirsintheJunggarBasinandnorthernTarimBasininXinjngarecomparedwiththoseofchemicallypurehydrocarbons.Thehydrocarbonsarecharacterizedbythebi-absorptionat2310nmand2350nm.Hydrocarbonandradioactiveanomaliesinoilandgasterrainsarefoundmuchmorewidespreadthancarbonatealterations.Basedonthespectraofheavyhydrocarbonsrelatedtooilbetween2270nmand2460nmandrefineddatatreatment,remotesensingmayholdencouragingpromiseasadirectlyprospectingtechniqueforoilandgasresources.

  • 标签: 地震勘察 新疆 地物 油气勘探 遥感 短波红外线光谱
  • 简介:Summarizingtheexistingdataofseismologicalandgeologicalinvestigationsanclorstrongandintermediate-strongearthquakesintheSichuanbasinanditsadjacentareasaccumulatedbytheseismologicalandpetroleumorganizationsinSichuanandoftheresultsofseismicprospectinganddetailedexplorationinChengdudepressionduringthelast20yearspermittednstostudythetypesanddistributionofhiddenstructuresinChengdudepressionanditsadjacentareas,inparticular,toidentifyindetailthe"hiddenfaults"intheChenngdu-Deyangareaontheonehand;TheobtaineddataindicatethattheNE-trendingXinjinfaultrunsnorthwardanddiesoutinthesouthofPenzhentownofShuangiiuCounty.Meanwhile,westudiedgeneticrelationsofseismicactivitytoactivefaultsandtheircorrespondingmovementcharacteristicsontheotherhand.Moreover,thesurfacefaultsanddeep-seatedfaultsareclearlydefinedandoutlined,and5typesofseismogenicfaultssuggested.TheknowledgethusobtainedenablesustodelimitthefocalzonesforpotentialstrongearthquakesinChengdudepression.Thestudysuggeststhatazoneof40kmwideandmorethan100kmlongonsidesalongtheChengdu-Deyanglinehasastableseismogeologicalbackgroundandgoodengineering-seismologicalconditions.

  • 标签: 浅断层 深固定断层 地震活性 脱顶褶皱 成都
  • 简介:ThePulangporphyrycopperdeposit,locatedintheGezantectonic-magmaticarcandsouthoftheYidunislandarc,southwestofSanjiangmetallogenicbeltinYunnanprovince,isasuper-largeporphyrycopperdeposit.Duringrecentdecades,thePulangdeposithasattractedwideattentionamonggeologistsbothathomeandabroad.Manypreviousresearcheshavediscussedits更多还原

  • 标签: 斑岩铜矿床 云南省 隐爆角砾岩 找矿意义 流体 岩浆弧
  • 简介:1.ObjectiveAseriesofMesozoic-CenozoiccontinentalsedimentarybasinsexistinNorthChina,coexistingwithcoal,oil/gas,andsaltresources.Manypreviousdrillingprojectshavebeenconductedwithinthesebasinstoexplorecoal,petroleum,andmineralresources,however,thesedatahavenotbeenintegratedduetodifferentindustriesowners.Inordertoefficientlyexplorethelarge-sized,easilyextracted,andenvironmentallyfriendly,sandstone-typeuraniumdeposits,previouscoalandoilexplorationdrilling-holedataaresystematicallycollected,processed,andanalyzedtoimprovethesandstone-typeuraniumprospectingexploitation.Atthesametime,wealsodiscussedtheuraniumsource,ore-formingprocessandmodelforthesandstone-typeuraniumdeposits.

  • 标签: New PROSPECTING progress INFORMATION COAL and
  • 简介:OnOctober18,2018,theChinaGeologicalSurveylaunchedaprojectoftheNationalKeyResearchandDevelopmentProgramofChina,entitled"PredictionandDeepExplorationDemonstrationofGoldPolymetallicDepositsintheJiaodongandLiaodongAreaswithintheNorthChinaCraton".Forthisproject,WulongandBaiyun-XiaotongjiapuyiinJiaodong,aswellasthenorthernZhaopingbeltsofLiaodong,werechosenasoreprospectingdemonstrationareas(Fig.1).

  • 标签: China HAS launched PROSPECTING DEMONSTRATION evaluate