摘要
论述了川西甘孜—理塘断裂带构造演化与金矿床成矿作用的关系，总结了区内金矿化的特征和金矿床类型。研究表明，甘孜—理塘断裂带是由韧性剪切带、逆冲断裂带、断陷盆地带、推覆构造带、脆性破碎带和平移走滑带相互叠加、改造而形成的复杂断裂带。其演化历史主要经历了晚三叠世卡尼期－诺利早期的洋壳俯冲、晚三叠世诺利晚期－瑞替期弧－陆碰撞、侏罗－白垩纪陆内会聚和喜马拉雅期断陷、推覆和平移剪切构造发育演化阶段。区内金矿化、金矿床（点）和金矿体的形成和分布，明显受断裂带的控制。金矿的成矿作用与该断裂带构造发展演化密切相关。
The tectonic evolution of Garze Litang fracture zone, the characteristics of Gold mineralization and types of gold deposit as well as their relationship in west Sichuan are expounded in this paper. The fracture zone is composed of a series of ductile shear zones, obduction fault zones, fault basin zones, nappes, brittle fault zones, and strike slip faults.It has undergone a complicated evolutionary process from ocean plate subduction in Late Triassic , island arc continental plate collision and intracontinental plate convergence at the end of Late Triassic to rift faulting,nappes and strike slip shear structure in Himalayan epoch . Gold mineralization and deposits (occurrences) in this region are controlled by the fracture zone. Gold mineralization is the corresponding result of tectonic formation and evolution of the fracture zone.
出处
《成都理工学院学报》
CSCD
1998年第2期233-240,共8页
Journal of Chengdu University of Technology
关键词
甘孜-理塘
断裂带
构造演化
成矿作用
金矿床
Garze Litang fracture zone
tectonic evolution
metallogenesis
gold deposit
west Sichuan
