摘要
本文在前人研究成果基础上 ,结合笔者所进行的建造序列和建造空间分析 ,认为本区盆地受古断裂系严格控制 ,可划分为若干盆地区 ,盆地亚区 ,盆地系。文中对本区古特提斯构造演化进行了分析 ,提出了边缘离散和板内裂陷是该区主要的构造型式 ,而由板块拼合产生的挤压型盆地只经历短暂的发育阶段。海西 -印支期研究区沉积盆地经过了初裂、强裂、逆转和余裂 ,最后走向消亡的全过程。对应于初裂、强裂和余裂分别发生了中 -晚泥盆世、早 -晚二叠世过渡期和中
On the basis of the sedimentary formation sequence and sedimentary formation space analysis,the studied area is divided into basin district, basin sub district, and basin series.The tectonic evolution of the region in the Hercynian and Indo Chinese epoch was characterized by 4 stages of arch rifting,including preliminary parting,intense parting convergence and residual parting.Mn bearing formation system with different features formed in medium late Devonian, early late Permian and medium late Triassic correspond with preliminary parting,intense parting and residual parting stages respectively.
出处
《矿物岩石》
CAS
CSCD
北大核心
2001年第3期105-113,共9页
Mineralogy and Petrology
基金
冶金地质 (八.五 )锰矿科研项目<扬子地台西缘及其邻区优质锰矿成矿规律及成矿预测>。
关键词
含锰建造
古特提斯盆地
扬子地块
古地理
盆控特征
Mn bearing formation,basin bound,Paleo Tethys,the West Margin of Yangtze plate
