四川石棉碲礦床成礦的地球化學機理.pdf

1、成都理工大學碩士學位論文四川石棉碲礦床成礦的地球化學機理姓名：馬東申請學位級別：碩士專業(yè)：地球化學指導教師：何明友劉峰20070501成都理j_I=大學碩學位論文Theore—forminggeochemicalmechanismofTedepositinShimian，SiChuanprovinceAbstractBasedonthegeologalicinvestigationinthefieldandlotsofanalysisd

2、atainthelaboratoryandthestudyingofregionalgeologyandstructurebackgroundofDashuigouTedeposit，wemadeadeepstudyoforeforminggeochemistryprocessandoreforminggeochemistrymechanismThisstudycoversregionalgeology，thephysicochemic

3、alconditionofDashuigouTedepositareatraceelementinmineralizationfield，isotopicgeochemistrythetransportformsofTethedepositgeochemistrymechanismofTeandtheore—forminggeochemistrymode，andSOonthestudyresultshasshowthatasf0Ilow

4、s：1theTedepositformedinthelinkupoftheplatesandactiveofthedeepfaultsandtectunomagma。ThisplaceCanprovidewitllenrichmaterialsandenoughreservoirspacefortheore—formingandactivityplaceforthesolutionSOitisadvantagedforformingTe

5、deposit2theformingoftheTedeposithascloserelationshipwiththespacetime3themineralizercamefrommantle，andthesolutionfrommagmatichydrotherm。4thestudyoftheinclutionsshowsthattheTedepositisatypeofmesohi曲temperature，mesogenemagm

6、atichydrothermalfillingdeposit5theprocessofore—formingWasaprocessofTandPfallingasthefallingofTandPpH、／02、，s2、fTe2comedown，andtheEhrised6TeWastransportedbyH2Te、HTe’inthesolutionandprecipitatedfromthesolutionwhenphysico—ch