闽北前寒武纪变质岩地层微量元素地球化学特征

通过闽北前寒武纪变质岩地层岩石共生组台特点以及各层组岩石多元素定量分析结果的研究，阐述了闽北前寒武纪变质岩地层微量元素地球化学特征和金、银、锡、钽等成矿元素丰度特征。统计表明，微量元素、成矿元素局部明显偏高或偏低，与混合岩化作用或后期热液叠加改造有关。

Geochemistry Characteristics of Trace Elements of Precambrian Metamorphic Rock in Northern Fujian

Based on the characteristics of rock association and multielement quantitative analysis results of Precambrian metamorphic rocks in Northern Fujian, the paper represents to the discussion of geochemistry characters of trace elements and abundance characteristics of such metallogenic elements as gold, silver, tin and tantalum of Precambrian metamorphic rocks in Northern Fujian. The statistic data have it that the contents of microelements and metallogenie elements are on the high side or on the low side in some local area, which has a relation with the migmatization and late-stage hydrothermal superposition and reconstruction.