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1972年9月,国际原子能机构在加拿大蒙特利尔制定了铀矿床分类法,其他类型铀矿床(第4组)包括不便于划入第1,第2和第3组矿床的矿床。这组矿床包括许多不同类型的铀矿化,并根据成因将矿床分为:正岩浆型矿床、火山道型矿床、剪切带和角砾岩型矿床、浅成矿床、卤水矿床、海相沉积矿床。本文描述了每组矿床中许多有代表性的铀矿床实例。正岩浆型矿床产于苏格兰、阿拉斯加、格陵兰、巴西、南非、马达加斯加和美国,铀矿与花岗岩、正长岩、碳酸盐岩和辉岩有关。描述了美国、加拿大和意大利与火山道有关的铀矿化。还描述了上述前两个国家和印度与剪切带和角砾岩有关的铀矿产地。所列出的浅成矿床实例产于加拿大、葡萄牙、西班牙、澳大利亚和南部非洲,卤水矿床产于美国。本文还提及在封闭盆地中铀矿床的形成条件。最后,根据海相沉积成因,援引了有关含铀磷酸岩的资料总结;本文最后描述了一些大陆架矿床。
In September 1972, the International Atomic Energy Agency developed the uranium deposit classification in Montreal, Canada. Other types of uranium deposits (group 4) included deposits that were not easily accessible for deposits in Groups 1, 2 and 3. This group of deposits includes many different types of uranium mineralization and is divided according to genesis into four types of ore deposits: positive magmatic deposits, volcanic tract deposits, shear zones and breccia deposits, shallow ore deposits, brine deposits, marine deposits Deposits. This article describes many representative examples of uranium deposits in each group of deposits. Positive magmatic deposits are produced in Scotland, Alaska, Greenland, Brazil, South Africa, Madagascar and the United States. Uranium is associated with granite, syenite, carbonate and pyroxene. Described the uranium mineralization associated with volcanic trails in the United States, Canada and Italy. Uranium deposits related to shear zones and breccias have also been described in the first two countries and India. The examples of shallow mineralized deposits are found in Canada, Portugal, Spain, Australia and southern Africa, and the brine deposits are produced in the United States. This article also mentions the formation of uranium deposits in a closed basin. Finally, based on the origin of the marine sediments, data on uranium-bearing phosphatic rocks have been invoked. Finally, some continental shelf deposits have been described.