西安里鐵礦成礦信息研究及找礦方向探討.pdf

1、分類弓P57，58，6壤爹走津碩士學位論文西安里鐵礦成礦信息研究及找礦方向探討導師姓名職稱申請學位級別李娟劉建朝教授碩士學科專業(yè)名稱礦床學、礦物學、巖石學皓文提交日期2007年5月30日論文答辯日期2007年6月7日學位授予單位＆安大學麗贏磊正巫噩二二二二學位論文評閱人煎魚豎、主』豳耋AbstractTheaJreaofXiAnliisthepartofgiantskammineralmetallogenicbeltinthelinkP

2、acificOcean，inthegeotectonics仃uctlIre，itisinthesoutheastofLvliang—Taihang，intheeastitapproachthebasinofLinZhou，intheoverallitlocateinthewestoflarge—scaleanticlineIntheareaMajiagoulimestoneinthemiddleofOrdoviciansystemwid

3、elyappearitthicknessisabove500meters，fromsouthtonorth，thestratumgraduallychangenewly。Inthearea，theMajiagoulimestoneisthemostmainadjacentthatcontroltheironoreformationandlocation，ithavethegoodchemistryandthephysicalcondit

4、ionintheironseparateoutandthelithosomecompressionandexpansionlocalization，itprovideadvantageousconditionthatironoremineralizeinthebigareaBasedonthepredecessor’Sworkthroughthecarefulandthoroughgeologicalinvestigation，acqu

5、isitionofagreatamotmtofgeologicalinformationandrockadeoresamplesontheoredistrictanditsperipheryapplyingmodempetrologydeposit，theorymetallogenicmleandmetallogenicprognosis，geochemistrygeophysicstheory＆method，combiningothe

6、rsubjects，alsobymeansofcomputertodealwithdatasandsimulaterelevantmaps，beginningintheoreforminggeologicalbackground，comprehensivestudyhasbeenmadeonthegeologygeophysicsandgeochemistryofirondepositsThroughthestudyongeologic

7、alinformationthatcontrolsthedepositswecanSeethatthescaleofdepositsandthescaleoflithosomedependonexistence，themainminingareaconcentrateinthearouIldofthicknessandthehi曲invasionpositionlithosome，themainorebodyproduceintheup

8、percontactzone；thesecondandfourthlothologicalsectionofMajiagoulimestoneinthemiddleofOrdoviciansystemarethemostadvantageoustothemineralization；thestnlcnlrebeltofnorthandsouthisthemainmineralizationbelt，inamongithasmined12

9、6orebodies；inthisareathemagnetitemineralizationhaverelatedlatestagetintneutraldioritebody；orebodyhastheobviousadjacentrockalterationTheresearchongeochemistryshowsthatinthisarea，inthealterationreplacementprocess，intheoref

10、luidleadmetasonmaticrocktheelement，nomattertheyinthealterationbeltoroutsidethealterationbelt，theyallhasthemassiveincrease，alterationarestronglyleadthequantitytobemoreInalterationreplacementprocess，eachkindofelementactivi

11、tyorderapproximatelymaybe：(oH)’、Na、K、Fe3、Fe”、Mg、ca2、Si4、Ti4、A13Thealterationintensityofsodiumnaturemetasomaticrockdivideintotwolevels：sodiumdioriteandalbiteThesodiumnaturereplacementandthemagnetiteoriginrelationcausethes