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(xué)位論文西安里鐵礦成礦信息研究及找礦方向探討導(dǎo)師姓名職稱申請(qǐng)學(xué)位級(jí)別李娟劉建朝教授碩士學(xué)科專業(yè)名稱礦床學(xué)、礦物學(xué)、巖石學(xué)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(xué)位授予單位＆安大學(xué)麗贏磊正巫噩二二二二學(xué)位論文評(píng)閱人煎魚(yú)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