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1、矿床学考试试题（Examinationpaperofmineralgeology）OredepositexaminationquestionsAglossary(atotalof10points,2pointsforeachitem)1,oregrade-referstothecontentofusefulcomponentsinores.2)thealterationofsurroundingrockreferstothereplacementofaseriesofoldmineralstonewandmorestableminer
2、alsundertheactionofgas,waterandhydrothermalfluidintherocksaroundtheorebody.3,magmaliquation-ahomogeneousmagmameltathighertemperatures,whichactsasamoltenbodyseparatedintotwoormorethantwoimmisciblemeltswhentemperatureandpressuredrop.4,changeintooredeposit,thatis,theorigin
3、alrockformedbymetamorphismordeposit,andformedanotherdepositwithanothertechnologicalcharacteristicbymetamorphism.5,thesourcebed-referstotheformationofmineralsinthesedimentaryrockhasbeeninitiallyenrichedandcanbeactivatedintheepigeneticperiodmigratedoutoftherock.Two,fillin
4、theblanks(25points,0.5pointsperspace)The1.oredepositiscomposedoforebodiesandsurroundingrock.Theorebodyiscomposedoforeandgangue.Theoreiscomposedoforemineralsandgangueminerals.2.magmaticdepositsknotlatemagmaticdepositsreferstomagmaticcondensatecrystalline,usefulminerals(o
5、rmineral)latercrystallizedfrommagmaenrichmentandtheformationofthedeposit,themainminerallatemagmaticdepositsisvanadium,titanium,ironore,itstypicalstructureissideronitictexture;themainmineralearlymagmaticdepositsisatypicalstructureofchromiumoreiseuhedralcrystalstructure.3
6、.bandedstructuresarethemostimportantandcommoninpegmatitedeposits.Welldevelopedbandedstructure,fromtheedgeofthepegmatitetothecenter,cangenerallybedividedintothemarginalzone,thelateralzone,themiddlebeltandthecore.Pegmatitedepositsareimportantsourcesofraremetalsandrareeart
7、hminerals.Importantmineraldeposits,suchasXinjiangandAltaipegmatitedeposits.4.,themaincomponentofhydrothermalsolutioniswater,themainsourceofwhichismagmaticwater,seawater,metamorphicwaterandgroundwater.Thefivestage5.skarndepositformationoftwophases,namelyskarnperiodinclud
8、ing____early(dry)skarn___,__late(wet)_____skarnstageandtheoxidephase,includingtheearlyperiod_(ironsulfidecoppe
