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铀源体、活化区、红色盆,断陷带构成我国后加里东隆起区花岗岩型铀矿床四位一体的区域成矿要素。加里东准地槽发育阶段,广泛沉积了C、Si、泥富含有机质的碎屑岩建造,吸附了大量的U,形成震旦-寒武纪的含铀岩系。印支-燕山期大规模的花岗岩浆活动,使得陆壳遭受强烈的改造,含U基底岩系被吞蚀和重熔,形成富U花岗岩体。多次的构造、岩浆活动进一步使岩体中的U遭受内生、构造、表生的活化改造,产生活动U的富集区。在白垩-第三纪的干旱、炎热古气候条件下,U经过强风化和热水浸出,在断陷带内富集成铀矿床——“岩源活化”型铀矿床。
The uranium source, the activated zone, the red basin and the fault zone constitute the regional ore-forming elements of the four-in-one granite-type uranium deposit in the Caledonian uplift area in China. During the Galeon quasi-geosyncline development stage, C, Si and mud-rich clastic rocks were extensively deposited and adsorbed a large amount of U to form Sinian-Cambrian uranium-bearing rock series. During the Indosinian-Yanshanian granitoids, the continental crust suffered intense transformation, and the U-bearing basement rocks were swallowed and remelted to form U-rich granite bodies. Multiple structures and magmatic activities further make U in the rock mass undergo an endogenous, structural and epigenetic activation transformation, resulting in a concentrated area of active U. Under the conditions of arid and hot palaeoclimate in the Cretaceous-Tertiary, U was intensively weathered and hot-water leached, and was enriched into a uranium deposit - a “source rock-activated” uranium deposit in the depression zone.