西武夷地区早古生代浅色花岗岩的厘定及其造山意义  

IDENTIFICATION OF THE EARLY PALAEOZOIC LEUCOCRATIC GRANITE IN THE WEST WUYI MOUNTAIN AREA AND ITS OROGENIC IMPLICATION

作　　者：曾勇[1] 

机构地区：[1]江西省地质矿产厅,江西南昌330002

出　　处：《江西地质》2000年第1期1-4,共4页Jiangxi Geology

摘　　要：西武夷地区的付坊超单元是一套白云母／二云母花岗岩组合，岩性包括白云母／二云母花岗闪长岩和白云母／二云母二长花岗岩，年龄为４７２～４４６Ｍａ。它是早古生代华夏古陆向扬子板块仰冲、华夏板块内部武夷地块与罗霄地块接合过程中形成的陆内俯冲花岗岩，两地块的接合部位──雩山接合带是一条陆内俯冲带。The Fufang superunit in the west Wuyi Mountain area consists of a suite of muscovite granite and two- mica granite association,including muscovite -two mica granodiorite and muscovite two mica granite, ranging in age between 472Ma and 446Ma. They are intracontinental granitoid formed during the subduction of the Early Palaeozoic Cathaysian old land against the Yangzi Plate and during the amalgamation of the Wuyi massif with the Luoxiao massif within the Cathaysian plate. The juncture between these two massifs, i . e.the Yushan juncture, was a intracontinental subduction zone.

关 键 词：花岗岩 陆内俯冲 早古生代 西武夷山 造山意义 

分 类 号：P588.121[天文地球—岩石学]