| 铀的预富集系 |
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| 引用本文： | 杜乐天,王玉明.铀的预富集系[J].铀矿地质,1986(1). |
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| 作者姓名： | 杜乐天 王玉明 |
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| 摘 要： | 本文阐述了成矿阶段前预富集的重要性及其演化序列。预富集可大体分为:地层预富集,岩体预富集,蚀变带预富集,总称预富集系。不只铀成矿有此规律,其它如钨、锡、金、银、铜、钼、铌、钽、锂、铍、稀土等矿床也同样遵循这一规律。掌握预富集规律对区域成矿远景预测和评价是很重要的。所谓层控矿床,其实质也在于强调成矿的工业富集(尽管可以通过各种成矿作用来实现)仍然脱离不开它之前的预富集。地层预富集乃是地壳上一切矿床成矿前最重要最有决定意义的预富集。
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| 关 键 词： | 地层预富集 岩体预富集 蚀变带预富集 级塔式累积增量 |
THE SEQUENCE OF URANIUM PRECONCENTRATION |
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| Du Letian Wang Yuming.THE SEQUENCE OF URANIUM PRECONCENTRATION[J].Uranium Geology,1986(1). |
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| Authors: | Du Letian Wang Yuming |
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| Institution: | Du Letian Wang Yuming |
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| Abstract: | All kinds of ore formation can be considered as pyramid-like superimposition and cumulative augmentation of ore-forming elements. The preconcentration is an assemblage of all the concentration processes preceded the final economic concentration. The preconcentration may be roughly divided into strata one, massif one and alteration one. The detailed discussion is given in this paper. |
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| Keywords: | Strata preconcentration Massif preconcentration Alteration preconcentration Pyramid-like cumulative augmentation |
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