资源描述：
《个旧东西矿区成矿规律对比分析本科毕业论文》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、分类号密级中国地质大学（北京）本科毕业论文题目个旧东西矿区成矿规律对比分析英文题目MetallogenicregularityofcomparativeanalysisinGejiuwest-eastminingarea摘要个旧锡铜多金属矿区被个旧断裂分为东区和西区，东区锡多金属矿开采程度高，矿田分布多；西区多年来仅发现一些中小型锡铜矿床，多年来，在个旧锡矿研究工作多注重于花岗岩成矿理论，个旧锡铜多金属矿床主要受燕山中晚期花岗岩及其有关构造控制，成矿时间集中。近几年来，随着矿区内越来越多地开采深部硫化物型矿床，表明个旧锡铜多金属矿床的
2、成因是复杂的，用单一矿源和简单的花岗岩成因观点不足以对其进行合理地解释。本文在前人研究成果的基础上，结合实地调研以及资料收集进行了区域和矿区地质背景分析，安尼期玄武岩犹如一个巨大的矿源层，为成矿过程提供了重要的成矿物质，燕山期花岗岩侵入活动带来的热力和热液作用下，使这些矿质得到萃取活化并迁移到一定部位成矿。通过对东西矿区地层、构造、岩浆岩侵位特征进行对比分析，对比东西区成矿规律，个旧东区的矿床地质研究程度较高，结合东西矿床地质研究成果，分析西区的矿床地质特点与成矿规律，为西区找矿提供依据。关键词：玄武岩；花岗岩；锡铜多金属矿床；成矿模
3、式ABSTRACTGejiutincopperpolymetallicdepositisanoldfractureisdividedintoeasternandWestern,Thedegreeofmultimetaloreminingdistrictoftin,Fielddistribution;Westovertheyearsonlytofindsomesmalltincopperdeposit,overtheyears;foryears,InGejiuTinresearchworkfocusedongranitemetallog
4、enictheory,GejiutincopperpolymetallicdepositismainlycontrolledbythelateYanshangraniteanditsrelatedstructure,Concentratedmineralizationtime.Inrecentyears,Withmoreandmoredeepsulfideminingwithintheminingareatodeposit,ThatcausestheGejiutincopperpolymetallicdepositiscomplex,
5、Withasinglesourceandsimplegranitegenesisisnotenoughtocarryonthereasonableexplanation.Inthispaper,onthebasisofpreviousresearchresults,Basedontheinvestigationanddatacollectionoftheregionandthegeologicalbackgroundanalysis,Anisianbasaltislikeagiantoresourcelayer,Providetheo
6、re-formingmaterialisanimportantmetallogenicprocess,ThethermalandhydrothermalactionYanshanperiodgraniteintrusiveactivitiesbringdown,Themineralwasactivatedandmigratetoacertainpartofmineralization.Throughcomparingandanalyzingtheformation,magmatite,somethingtectonicemplacem
7、entcharacteristics,MetallogenicregularitythingsDistrictcomparison,TheeastareaofGejiuoredepositgeologyresearchhigherdegree,Combinedwiththegeologicalresearchresults.AnalysisofthegeologicalcharacteristicsoforedepositsandmetallogenicregularityoftheWest,ToprovidethebasisforW
8、esternExploration.Keywords:basalt;granite;Tincopperpolymetallicdeposit;Metallogenicmodel目录1绪论11.1个旧地区地理概况11.2选
