简介：Sediment-hostedgolddepositsarethemajortypeofgoldresourcesinchina,Concentratedmostlyinthetwo'TriangleRegios',theyaregenerallyhostedinfine-clasticturbidite,hydrothermalchetandmarlrangingfromcambriantoTriassicinage,structurallycontrolledbydomes,anticlinesandsecond-orderedfaults.TheyaresimilartotheCarlin-typegolddepositsinmineralassemblageandgeochemicalmarks,withanelementassociationcloselycomparabletothoseofmodernspringsandsubmarinehydrothermalsediments.Organicmattermayhaveplayedanimportantroleinmineralization.Theoresolutionmaybehydrothermallyalteredmeteoricwaterdevelopediareasoflocalgeothermalanomaly.

简介：Oil-gasremotesensinginformationisobtainedfromsatelliteTMdatathroughgraphictreatmentinthelightofthehydrocarbon-microseepagetheory.Theninetargetareas(ofthreetypes)selectedonthisbasisconcidewellwiththeoccurrenceofnaturalgasesandhavebeenprovedbysubsequentprospecting.Plantsinthetargetgreasarecharacterized.asaresultofhydrocarbon-microseepage,byabnormalspectralfeatureswiththeabsorptionpeaksofchlorophyllshiftingtowardbluelight,reflectivityintherangeofvisiblelightincreasingandreflectivityinthenearinfraredregiondecreasing.

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.

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

简介：Thespectralcharactersofhydrocarbonsinsomeoil-bearingstrataandsoillayersoueroilandgasreservoirsintheJunggarBasinandnorthernTarimBasininXinjngarecomparedwiththoseofchemicallypurehydrocarbons.Thehydrocarbonsarecharacterizedbythebi-absorptionat2310nmand2350nm.Hydrocarbonandradioactiveanomaliesinoilandgasterrainsarefoundmuchmorewidespreadthancarbonatealterations.Basedonthespectraofheavyhydrocarbonsrelatedtooilbetween2270nmand2460nmandrefineddatatreatment,remotesensingmayholdencouragingpromiseasadirectlyprospectingtechniqueforoilandgasresources.

简介：~~