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序言随着世界铀矿勘探事业的发展,产在沉积地层中的各类铀矿床,已陆续发现,而且因为这类矿床的规模大,矿石加工处理容易等特点,逐渐被重视起来,与内生热液矿床比较,其重要性也就更加明显。在这些矿床中的铀矿物,虽然多数属于次生矿物,但一向被认为原生矿物的晶质铀矿(Uraninite)和铀石(coffinite)也产于这些矿床。如在日本的鸟取、岡山两县广泛分布的人形(山卡)型铀矿床里,除了产有钙铀云母(autunite)和斜钙铀云母(meta-autanite)之类次生铀矿物外,还有大量与硫化矿物伴生的所謂黑色人
Preamble With the development of uranium exploration in the world, all kinds of uranium deposits produced in sedimentary strata have been discovered one after another, and because of their large scale and easy processing of ore, they are gradually being valued and endogenous The importance of hydrothermal deposits is even more obvious. Uranium minerals in these deposits, although most of them belong to secondary minerals, are also found in these deposits as uraninite and coffinite of primary minerals. For example, in the human-shaped (Yamaka) uranium deposits widely distributed in Tottori and Okayama prefectures in Japan, in addition to producing secondary uranium minerals such as autunite and meta-autanite, There are also a large number of so-called black people associated with sulfide minerals