廣西大廠100號礦體礦床地球化學異常分帶模型與成礦預測.pdf

1、桂林理工大學碩士學位論文廣西大廠100號礦體礦床地球化學異常分帶模型與成礦預測姓名：張志偉申請學位級別：碩士專業(yè)：礦產普查與勘探指導教師：陳遠榮20090401桂林理工大學碩士學位論文AbstractMoreandmoreresearchlndicatesthathydrocarbonwidelyexistsinmanykindsofmineraldepositsandrocks(thedepositionrock，volcanoroc

2、k，metamorphicrock)ofearth’Ssurface(ornearearth’Ssurface)，anditalsooccursinchimneyofmodemseabottom，hotwaterareaofmodemseaslotandvolcanogasIthadbeenmakesurethatgreatquantitiesofhi曲saltdegreefluidcontaininghydrocarbonexists

3、intheearth’Scrustof8～12kmdepthTheresearchersalsodiscoveredhydrocarboninthewrappageofbasicultrabasicrockandbasaltfrommantleoftheearthFurthermore，about60kindsofvariousorganiccompounds(includehydrocarbon)hadbeenfoundintheme

4、teorite(carbonaceouschondfite)Sotheresearchonhydrocarbonshouldn’tbelimitedintheenergymineralssuchaspetroleum，naturalgasandcoaletcItshouldalsobeexpandedtometalmineralandmineralfluidInthisarticle，throughcombiningsomeoftrad

5、itionalgeochemicalmethodswithnewgeochemicaltechnologiessuchasorganichydrocarbongasandmercuryadsorptionphaseandsummarisingtheabnormalzoningregularpatternoftheknownorebodytheautherestablishedageochemicalabnormalzoningmodel

6、whichissuitableformetallogenicpredictionofdeepandnearGaoFengdeposit，andsummedupasetofgeochemicalpredictingindicationsforexplorationTheresultshowsthatacertainamountoforganicmatterparticipatetheore—formingprocessoftheDacha

7、ngtindepositandhydrocarbongasareimportantassociatedcomponentsofitAlthoughthe100撐orebodyisacontinuousentiretybutitresultedfiommulti—phasesuperimposedmineralization，andthatcausedanumberofconcentratedcentersofthetraceelemen

8、tsandhydrocarboncomponentsinverticaldistributuonHydrocarbonshollowhaloanomalieswhichisbigaboveandsmallbeneathexistaroundtheorebodyInotherwordsthecontentofhydrocarboncomponentislowerintheorebodyandhigherintherockaroundthe

9、orebody，andhavethechangeregularitythatgraduallyreduceoutwardsBecauseofthecorrelationbetweenhydrocarbongasanomaliesandtinorebodyinspaceorganichydrocarbongasCanbeusedasimportantindicatorsforexplorationAccordingtothemutativ