清流玮埔地区花岗岩的时代和岩石序列  

Ages and Lithologic Sequence of the Granite in the Weipu area of Qinliu County

作　　者：陈日明[1] 陈兴高 

机构地区：[1]福建省区域地质调查队,三明365001

出　　处：《福建地质》1999年第1期20-26,共7页Geology of Fujian

摘　　要：清流玮埔岩体曾是福建省印支期代表性岩体之一， 出露有一定规模， 前人把它作为单一的具片麻状构造黑云母二长花岗岩。在１∶５ 万嵩口坪等４ 幅侵入岩调查中， 全面采用侵入岩岩石谱系调查的新理论和新方法， 对该岩体进行详细解体， 划分出４１ 个侵入体， 建立７ 个单元，将其归并为廖武坪序列、玮埔单元、盘兰溪序列①， 并确定了志留纪、三叠纪和晚侏罗世３ 个时期的岩浆活动。在对该岩体时代划分基础上， 对不同时代岩石序列、岩石化学、地球化学、副矿物等特征进行总结， 并探讨了不同时期岩体的就位机制、成因和形成的构造环境，The Weipu intrusive body in Qinliu County is one of the representative intrusive bodies of the Indosinian epoch in Fujian Province.It has been considered as an intrusive body composing of the monogenetic rock of the monzonitic granite with gneissic structure.Surveying of the intrusive rock in the four sheets(1∶50000 scale)of regional geological mapping,and applying the new theory and method about survey of intursive litholineage unites,the Weipu intrusive body was studied in detail and divided into forty one intrusive bodies,and seven litholineage unites were set up.These unites grouped into the Liaowupin Sequence,Weipu Unit and Panlanxi Sequence.It is inferred that the time of three magmatic activities in the surveyed area is the Silurian,Triassic and Late Jurassic.Basis on the time division of this intrusive body,in the paper the authors made a summary of the characteristics of litholineage series,lithochemistry,geochemistry,accessory mineral of the different time of intrusive bodies and the emplacement mechanism,origin and tectonic environment and made a discussion of the formation relationship of the intrusive bodies with regional structures.

关 键 词：时代划分 岩石谱系单位 岩石序列 花岗岩 

分 类 号：P588.121[天文地球—岩石学]