资源描述：
《丁家山铅锌矿》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、第22卷第3期中国有色金属学报2012年3月Vol.22 No.3TheChinese JournalofNonferrous MetalsMar. 2012文章编号：10040609(2012)03080910 福建梅仙丁家山铅锌矿成矿系统分析1,21, 21,21,2石得凤，张术根，韩世礼，艾国梁(1.中南大学有色金属成矿预测教育部重点实验室，长沙410083；2.中南大学地球科学与信息物理学院，长沙410083)摘要：通过对丁家山铅锌矿成矿时代、成矿物质来源、成矿流体通道、储矿场等成矿系统要素的全面分析，明确了丁家山铅锌矿区成矿作用为燕山期花岗质岩浆与经加里东
2、期区域变质的新元古界马面山群龙北溪组上段富钙质岩之间的接触交代变质作用。Pb和S等同位素研究及化探扫面结果显示：矿区成矿物质由燕山期花岗岩和马面山群龙北溪组地层共同提供，H和O同位素研究证实：成矿流体由大气降水和岩浆水共同组成；精细化矿物场填图指示成矿流体主要通过北东向断层运移，而矿区储矿场由马面山群龙北溪组上段、上侏罗统长林组和其间的角度不整合接触界面构成。丁家山铅锌矿属挤压构造成矿系统(大类)下属的与燕山期花岗质岩浆有关的接触交代成矿系统类。关键词：成矿系统；成矿作用；接触交代变质；丁家山铅锌矿中图分类号：P61 文献标志码：AMetallogenic syst
3、em analysis of Dingjiashan PbZn ore districtinMeixian, Fujian Province1,21,21,21,2SHIDefeng ,ZHANGShugen ,HANShili,AIGuoliang (1.KeyLaboratoryofMetallogenicPrediction ofNonferrous Metals,MinistryofEducation,CentralSouth University,Changsha410083,China；2.SchoolofGeosciencesandInfoPhysic
4、s,CentralSouth University,Changsha410083,China)Abstract:Based on the systematicstudyofmetallogenicsystemelements,such asmetallogenicepoch,oreforming materials source,pass wayoforeformingfluid and site ofore body,itisfound thatthe metallogenesis ofDingjiashan PbZn ore districtis contact
5、metasomaticmetamorphismbetweenYanshaniangranite and theregionalmetamorphismcalcareousrock ofNeoproterozoicMamianshan Formation Longbeixigroup upper.Theresearch onisotope ofPb,Sand geochemicalexplorationconfirms thatthe oreformingmaterials are suppliedbyYanshaniangraniteandMamianshan Fo
6、rmation Longbeixigroup,and the research on isotope ofHandOconfirms thatthe oreformingfluid is composed ofmagmaticwaterand atmosphericwater.The mineralmappingindicatesthatthe oreformingfluid flows alongNE fault.Therearethreesitesoforebody,NeoproterozoicMamianshan FormationLongbeixigroup
7、 upper,Jurassic Changlin group and angularunconformitybetweenthem.DingjiashanPbZn ore districtiscontactmetasomaticmetamorphismmetallogenicsystemrelatedtoYanshanian granite,which belongs tocompression structure metallogenicsystem.Keywords:metallogenicsystem;metallogenesis;contactmetas
