大兴安岭中生代岩浆岩及岩浆作用研究进展

摘要

The Daxing’anling area lies in northeast of China as a part of the eastern extension of the Xingmeng orogenic belt. In geological history, multi-stage magmatic activities took place in the area, of which the Mesozoic magmatism was the strongest, most widespread and closest to ore formation. On the basis of summarizing previous data, considering structural geology setting and zircon isotopic dating, this paper discussed magmatic rocks and magmatism of the Mesozoic era in the area, and this study is helpful to restoring the geological evolution history and mastering the development law providing reference for scientific research and mineral exploration in the area.%大兴安岭地区位于中国雄伟版图的东北部，属于兴蒙造山带的东延部分。本区在地质历史时期曾发生过多期次、多阶段岩浆活动，其中尤以中生代岩浆活动最为强烈，分布最为广泛，与成矿关系最为密切。在总结前人资料的基础上，从构造地质背景入手结合锆石同位素测年资料探讨该区中生代岩浆岩和岩浆作用。研究本区中生代岩浆岩及其岩浆作用有助于我们还原其地质历史演化过程并掌握其地质演化发展规律，为该区科研及矿产勘查工作提供借鉴。