摘要
福建早古生代主要分布于武夷山脉东南侧,沿邵武-长汀、永安-龙岩呈北东向带状展布,总体上属于以泥砂质为主的复理式建造。复理石建造组份相对复杂。通过对林田群矿物组份进行分析,表明了林田群下段的邵武-长汀海湾之地势乃北高南低,同时也反映了北部的香岭地区距剥蚀区较近、陆源物质丰富等特征;林田群上段距武夷陆块较近,陆源物质来源丰富。并结合岩相地理分析,林田群下段是在早中寒武世早期一种海域广阔、水文流畅,氧化作用比较充份的环境下接受了沉积,组成林田群下段的砂质复理石建造。
The Lower Paleozoic Lintian Group is exposed on the southeastern side of the Wuyi Mountains and distributed along the NE-trending Shaowu-Changting and Yongan-Longyan belts.Generally,it belongs to the flysch formation composed mainly of algillo-arenaceous sediments.This paper deals with characteristics of the same flysch formation based on mineral composition in combination with sedimentary facies and paleogeography.
作者
石志华
魏争
音长乐
SHI Zhi-hua;WEI Zheng;YIN Chang-le(College of Earth Sciences,Chengdu University of Technology,Chengdu 610059)
出处
《四川地质学报》
2019年第1期7-10,共4页
Acta Geologica Sichuan
关键词
复理石建造
早古生代
矿物组份
福建
flysch formation
Lower Paleozoic
mineral composition
Fujian
