冈底斯东段构造-岩浆作用与成矿研究进展

Advances in Research for Tectonism-Magmatism and Metallogeny in the East Gangdisê Metallogenic Belt

西藏冈底斯成矿带东段具有找矿潜力巨大、矿种类型丰富以及矿化特征典型等特征。以大量前人研究资料为基础,从成矿岩浆岩活动与成矿、构造背景与成矿及矿产分布规律等方面较系统地阐述了近些年该地区在喜马拉雅晚期构造-岩浆活动与成矿研究的相关进展。随着测年技术精度及方法的提升,成矿岩浆岩的时代划分也更加准确。晚喜马拉雅阶段主要矿化类型为斑岩-矽卡岩型,成矿物质可能为同一来源,并受到构造活动及岩浆多期次作用影响,矿产分布具有一定规律性。

Based on a large number of previous research data,the eastern section of the Gangdisêmetallogenic belt has great potential for prospecting with various types of deposits and mineralization.This paper deals with advances in research for the Late Himalayan tectonic-magmatic activity and metallogeny in the studied area.The mineralization types in the Late Himalayan stage in this area were predominated by porphyry-skarn type,and the ore material was derived from the same source and affected by structural y and multi-stage dynamic activities.