论文部分内容阅读
在圣腊法埃耳-斯韦尔地区,渗入铀矿体的半流态沥青在250°-300℃的温度下受热而硬化。硬化的物质性质变脆,并在物理性质上与天然硬化的“沥青石”大致相似。这些人工的硬化物质的红外曲线与天然的“沥青石”的曲线也很相似。人工硬化的和天然硬化的”沥青石”的红外曲线显示了它们具有微弱的和不清晰的吸收带,相反,半流态沥青的吸收性则很强。对铀矽酸盐铀石的矿物学研究表明,这种矿物与富奇斯和霍克斯特雷(1959)所制成的合成铀石相似,虽然缺少一个重要的羟(基)组分。硬化的含铀“沥青石”与铀矽酸盐铀石的密切而普遍的共生既明它们是同时形成的。铀-有机质成分也许能受辐照作用而硬化,尽管这种现象看来似乎未必可能。然而,这样一种成因对于铀矽酸盐铀石来说几乎难以令人置信。无论是铀石或是与其伴生的含铀“沥青石”,都可被认为是热液成因的。
In the area of Saint-Raphaël-Swell, semi-fluidized bitumen that penetrates into uranium ore bodies hardens at temperatures between 250 ° and 300 ° C. The hardened material is brittle and physically similar in nature to the hardened “pitchstone.” The infrared curve of these artificial hardened material is also very similar to that of the natural “asphalt stone.” Infrared curves of artificially hardened and naturally hardened “tar pitch” show that they have weak and unclear absorption bands, whereas semi-fluid bitumen is highly absorbent. Mineralogy studies of uranium silicate uranium stone have shown that the mineral resembles synthetic uranium made by Fuchs and Hoxter (1959) albeit one lacking an important hydroxyl (base) component. The close and common symbiosis of hardened uranium containing “pitchstone” with uranium silicate uranium stone means that they are formed simultaneously. Uranium - the organic matter may be harden by irradiation, although this may not seem possible. However, such a cause is almost unbelievable for uranium uranyl silicate uranium. Both uranium and associated uranium “tar pitch” can be considered hydrothermal causes.