大兴安岭北段古生代构造-岩浆演化

来源 :2015年中国地球科学联合学术年会 | 被引量 : 0次 | 上传用户:guanshui6
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中亚造山带(又称阿尔泰造山带),作为全球最大、最为复杂的造山带之一,其一直以来是广大学者研究的热点,本文选择大兴安岭北段新林—嘎仙—吉峰地区蛇绿混杂岩中的基性一超基性岩、博克图杂岩(火山碎屑岩和混合状片麻岩)、塔源地区的花岗岩及辉长岩、伊敏地区的古生代碎屑沉积岩,进行了矿物学、岩石学、地球化学、同位素地质学及构造年代学的综合研究,试图初步建立了大兴安岭北段古生代时期的构造—岩浆演化模式。
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