欢迎来到天天文库
浏览记录
ID:34114717
大小:10.08 MB
页数:82页
时间:2019-03-03
《青海玉树赵卡隆铁铜多金属矿床构造分析和成矿规律研究》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、中南大学硕士学位论文青海玉树赵卡隆铁铜多金属矿床构造分析和成矿规律研究姓名:段庆林申请学位级别:硕士专业:构造地质学指导教师:奚小双20090531中南大学硕士学位论文摘要摘要赵卡隆矿区位于青海省玉树藏族自治州南部,处于我国著名的三江成矿带的北部,是该区带中有代表性的重要矿床,由于地处偏远,研究程度不高,需要加强基础地质研究和综合找矿工作。论文在参阅大量文献的基础上,结合系统的野外地质调查和研究工作,重点解决了矿区的地层划分和构造型式等基础问题,总结了成矿规律,初步探讨了矿床成因类型。论文研究认为,矿
2、区是中生代特提斯构造域的多岛洋盆活动的一部分,矿床形成于裂谷带中,具有弧后运动的性质。研究确定了矿区地层新的层序关系,对矿区变形构造的调查研究发现了叠加褶皱的变形型式,填绘了完整的矿区构造纲要图。发现矿区具有统一的含矿层位,确定了矿区的矿床成因类型,是海底喷流沉积型矿床与铁氧化物型矿床的结合类型。根据对矿区成矿地质条件的全面分析,把矿区中分散的矿体连接成统一矿层,表现了成矿的分带性,确定了矿化的分布范围和发展方向,说明了矿区的成矿规律和找矿目标。关键词:多岛洋盆,弧后盆地,叠加褶皱,喷流矿床中南大学硕
3、士学位论文摘要ABSTRACTTheZhaokalongdepositiSlocatedinsouthempartofYushuTibetannationalminorityautonomousareainQinghaiProvince.ItissituatedinnorthpartoftheNujiang-Lancang-JinshaRivermetallogenicbelt.Itistherepresentativeimportantoredeposit.BecauseitiSsituatedfa
4、raway,theresearchdegreeisnothigh.Thefoundationgeologyresearchandthesynthesisprospectingworkneedstostrengthen.Onthispaper,basedonanumerberofliteraturereading,andcombinedwiththecompletefieldgeologicalinvestigationandtheresearchwork,thewritermainlyfinished
5、thenewclassificationaboutstratsequenceandstudiedstructurerdeformationstyle,andsummarizedmetallogenicregularityoforedeposit,anddiscussedOregenesisprimarily..ThewriterthinksthatmineisapartofarchipelagooceanbasinwhichbelongstoMesozoictethyandomain.Thisdepo
6、sitformedinriftzone,andithasthepropertiesofback-arCmovement.Inthisresearch,anewstratasequencehasbeenidentified.Basedondetailedfieldinvestigatio,thetectonicdeformationstylehasbeendefinedassuperpositiondrape.Andacompleteoutlinemapboutstructuralfatorsisfig
7、uredout.Aunifiedtheore—bearinghorizonisfound,thegenesisofedepositisdeterminedassubmarinesedimentation—exhalationsedimentarydeposits.Meanwhileitalsohassomeironoxidedepositsfeatures.Accordingtoanalysisaboutthegeologicalconditionsofore—forming,thedespersed
8、orebodyisconnectedintounitybeddinginminingarea.Itdisplaysclearmineralizedzoning,andthedistributionspacesofmineralizationandthedirectionofdevelopmentaredetermined.Lastly,theore-formingregularityandprospectingtargetareillustrated.K
此文档下载收益归作者所有