长江中下游成矿带区域构造格局的新认识

被引：42
作者：
常印佛 [1 ,2 ]
李加好 [1 ]
宋传中 [1 ]
机构：
[1] 合肥工业大学资源与环境工程学院
[2] 安徽省自然资源厅
来源：
岩石学报 | 2019年 / 35卷 / 12期
基金：
国家重点研发计划; 中央高校基本科研业务费专项资金资助;
关键词：
长江中下游成矿带; 构造格局; 江南过渡带; 基底拼合; 南北对峙带;
D O I：
暂无
中图分类号：
P612 [成矿区、成矿预测及成矿规律];
学科分类号：
0709 ; 081803 ;
摘要：
长江中下游成矿带作为我国重要的成矿带之一,矿产资源开发利用及区域地质研究历史悠久,成果丰硕。本文重点论述了长江中下游成矿带的构造格局和复合构造系统,探讨了董岭/埤城式基底与江南式基底的拼合时代,提出了南北对峙带的概念,明确了江南过渡带的内涵。主要认识有:（1）长江中下游成矿带平面构造格局为"一弧一线夹两喇叭"的形态;（2）董岭/埤城式基底与江南式基底的拼合时代介于Z1与Z2之间;（3）南北对峙带是"纲",控制了长江中下游成矿带的构造格局;（4）剪切阶段是"眼",区域上由"压扭"向"张扭"的转换过程中成岩成矿大爆发;（5）江南过渡带的南半部早期属于江南隆起,在印支期与下扬子地区一并发生褶皱,褶皱特征类似下扬子坳陷南缘而与江南隆起腹地不同,故划到长江中下游成矿带构造单元中。
引用
收藏
页码：3579 / 3591
页数：13
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