摘要
赣东加里东变质混合岩带 ,是以混合岩体为主体 ,受韧性剪切带控制的多相、多型、递增变质带 ,是受区域深构造控制的热变质带。该带产有茅排式金矿。通过对该带金地球化学特征和地球化学行为研究 ,认为带中金丰度 0 .83× 10 - 9,呈峰式分布 ,为对数及双对数正态分布型式 ,Au与主元素成分无关 ,与微量元素组合是Au -Zn -Li-Pb -Cs 。
Caledonian metamorphic migmatite zone in east Jiangxi, with its major parts of migmatite, is a multi\|phase and multi\|style zone of progressive metamorphism, which is controlled by ductile shear zone , and it also is a thermal metamorphic zone controlled by regional deep tectonics .There exists a Au\|ore of Maopai\|type. By researching Geo\|chemical Characteristics and behavior of Au in the zone, this paper suspose that Au in this zone, with its abundance of 0.83×10\|6, distributes in peak\|modal of logarithmic and bi\|lognormal distribution and has nothing to do with major composition ,its element assemblage is Au\|Zn\|Li\|Pb\|Cs and features remobilization in the process of ductile shear.
出处
《华东地质学院学报》
2001年第2期91-97,共7页
Journal of East China Geological Institute
基金
江西省自然科学基金资助项目(941 0 2 8)
关键词
变质岩
混合岩带
金
地球化学特征
地球化学行为
丰度
微量元素
caledonian
metamorphic rocks
migmatite zones
gold
geochemical characteristics
geochemical behaviour
east province
