甘肃庄浪-静宁铁矿成矿地质特征及找矿方向研究

《甘肃庄浪-静宁铁矿成矿地质特征及找矿方向研究》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、论文题目：甘肃庄浪-静宁铁矿成矿地质特征及找矿方向研究专业：矿产普查与勘探硕士生：端木辉（签名）指导老师：王贵荣端木合顺（签名）摘要甘肃庄浪-静宁铁矿床位于甘肃省东部山地与黄土高原的过渡地带，大地构造属于祁连造山带东部。该区大部分被黄土覆盖，仅在深切沟壑中有少量零星基岩出露，历年来找矿没有大的突破。甘肃庄浪-静宁铁矿的发现，预示了在该地区开展找矿工作具有良好的前景。本文以该铁矿床为对象，进行典型的矿床成矿特征研究、成矿规律总结和找矿方向的探讨，对推动甘肃东部黄土覆盖区找矿工作具有重要的理论及实践意义。收集整理了近年来祁连造山带（东段）的一系列研究成果，并且结

2、合矿区已有资料，总结出了矿床的成矿地质背景；通过岩石薄片鉴定、Harker图解分析、特征参数计算等方法，研究得出了基性岩体的岩石学特征、基性岩体地球化学特征以及基性岩矿物与成矿关系等，从而构建出了本矿区的成矿地质特征；根据已有的成矿地质特征，分析得到了适合本矿区的控矿因素和确定了矿床的成因类型。针对矿区对今后找矿方向的实际需求，在对国内同类型矿床进行对比的基础上，结合矿区的磁法异常和地质特征情况，得出了矿区的找矿方向。关键词：庄浪-静宁铁矿含矿岩体控矿因素成矿地质特征找矿方向研究类型：应用研究型万方数据万方数据Subject：GeologicalCharac

3、teristicsandProspectingDirectionofIronDepositinZhuanglang-jingning,GansuProvinceSpecialty：MineralProspectingandExplorationEngineeringName：DuanmuHui（Signature）Instructor：WangguirongDuanmuHeshun（Signature）ABSTRACTGansuZhuanglang-Jingningironoredepositislocatedinthetransitionzoneofthe

4、easternmountaininGansuprovinceandtheLoessPlateau,belongstoEasternQilianOrogen.Mostoftheareaiscoveredbyloess,onlyinthedeepgullyasmallamountofsporadicbedrockisexposed,overtheyears,prospectingdoesn’thasbigbreakthrough.Theironoreindicatesthattheoreprospectingintheareahasgoodprospects.T

5、aketheironoredepositastheobjectofstudy,summarizedstudyonthemetallogeniccharacteristicsandmetallogenicregularityandprospectingdirectiondiscusshaveimportanttheoreticalandpracticalsignificancetopromoteoreprospectingofGansuloesscoveringareainEasternoreprospecting.Collectedaseriesofrese

6、archresultsofQilianorogenicbelt(East)inrecentyears,andthecombinatedexistingdataofminingarea,themetallogenicgeologicalbackgroundofthisdepositwassummedup;Throughtheidentificationofrockslice,Harkergraphicanalysis,featureparametercalculationetc.,studiesoftheultrabasicrockmasscharacteri

7、sticsandpetrologicalcharacteristics,basicrockgeochemicalcharacteristics,andmaficmineralsandmineralizationwasacquired,soastobuildthegeologicalcharacteristicsofmineralizationinthisarea;Accordingtothegeologicalfeaturesofexisting,theorecontrollingfactorsfortheminingareawasachievedandth

8、egenetictypeofthedepositwa