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J4 ›› 2015, Vol. 21 ›› Issue (4): 694-.

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GeochemicalCharacteristicsofSoilsandDiscussiononProspecting intheEukabyLead-ZincExplorationArea,Australia

DONG Peng, SUN Chuanmin*, XU Guanli, LIU Yansong, TAN Wei, FENG Bo   

  • Online:2015-12-20 Published:2016-01-04

Abstract:

BecausehistoricalgeologicalexplorationworkandavailableresearchonEukabylead-zincexplorationarefew,previous prospectingworkhasnotmadeagreatbreakthrough.Inordertoobtainpreliminaryevaluationofprospectingpotentialintheexploration area,soilgeochemicalsurveys(ascaleat1:10000)havebeencarriedout.AccordingtothesoilgeochemicalsurveysinEukaby,the methods of factor analysis, correlation analysis, and cluster analysis from mathematical statistics were applied to investigate the characteristicsofelementcombinationinthisarea.Elementanomaliesweredelineatedbythresholdvaluesofsoilanalysiselements. Thedistributionofelementanomalieswasfoundtobecontrolledbythewelldevelopedjointsandfractures.Themetallogenicmaterials werederivedfromthecontinentalweatheringproductsandwallrocks.AlsotheDelamerianorogenyandsubsequenttectonicactivities providedtheconditionofore-bearingspaceandheatsourceforremobilization,enrichment,andprecipitationofmetalelements.Basedontheanalysisofregionalgeologiccharacteristics,threegeochemicallycomprehensiveanomalousareasweredelineatedinthesoil geochemicalsurveyarea,whichwouldprovidethebasisforfutureexplorationwork.

Key words: soilgeochemistry,elementanomaly,Eukaby,Australia