摘要
江山—绍兴断裂带代表了会稽元古代地体和陈蔡元古代地体的碰撞拼贴带，双溪坞群和陈蔡群在岩石组合和地质地球化学方面存在较大差异，分属于会稽地体和陈蔡地体的物质组成．地体碰撞始于距今１０亿年前，结束于８５～８０亿年前．拼贴带内存在着由双溪坞群、陈蔡群、超镁铁质和镁铁质岩块及洋壳碎片组成的构造混杂体．
Jiangshan-Shaoxing fault zone represents the collision-collage zone between Kuaiji Proterozoic terrane and Chencai Proterozoic terrane.Shuangxiwu Group and Chencai Group have great differences between rock associations and geochemistry and belong to Kuaiji terrane and Chencai terrane respectively.The terrane collision-collage began 1000 M years ago and ended 850～800 M years ago the formed tectonic melange consisting of Shuangxiwu Group,Chencai Group and ultramafic,mafic as well as oceanic crust fragments.
出处
《山东师范大学学报（自然科学版）》
CAS
1998年第1期38-42,共5页
Journal of Shandong Normal University(Natural Science)
基金
国家自然科学基金
关键词
地体
断裂带
碰撞拼贴带
元古代
Terrane
fault zone
collision-collage zone
Proterozoic era
