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在元古代,我国不少地区都发育了一种特殊的含铁建造。它们均具有富含稀土元素的特征,与国外同时代的沉积变质铁矿明显不同,在文献中尚未见到这方面的报道。涂光炽教授首先将其命名为稀土铁建造。 本文试图对我国独特的稀土铁建造的主要地质和地球化学特征作一概要的描述,并着重讨论它们的稀土分布模式特点及其对矿化时代和成因的指示意义。
In the Proterozoic, a special kind of iron-bearing construction was developed in many areas of our country. All of them are characterized by rich REE, which is obviously different from the contemporaneous depositional metamorphic iron ore in foreign countries and no such reports have been reported in the literature. Professor Tu Guangchi first named it a rare earth iron construction. This article attempts to give an overview of the major geological and geochemical characteristics of the unique rare earth iron construction in our country, and focuses on the characteristics of their rare earth distribution patterns and their implications for the mineralization age and genesis.