The Bytíz deposit is a part of the Příbram uranium and base-metal ore district. It is an example of a vein-type deposit with polyphase hydrothermal mineralization. Samples of uraniferous solid bitumen from Bytíz with U content up to 38 wt% are characterized petrologically, geochemically, and mineralogically using EPMA, Raman and infrared microspectroscopy. The bitumen-bearing samples consist of base-metal sulfides: galena, sphalerite, pyrite, chalcopyrite, and also minor amounts of tetrahedrite, stibnite, and acanthite, associated with Mn-bearing calcite, quartz and silicates (chlorite, muscovite). Solid bitumens were found in the form of small veins and droplets, and roundish to irregular accumulations, in association with uraninite and carbonate veins.

中文翻译：

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捷克共和国普日布拉姆区 Bytíz 矿床中与热液贱金属矿化相关的含铀固体沥青的形成和辐射分解蚀变


Bytíz 矿床是 Příbram 铀矿和贱金属矿区的一部分。它是多相热液矿化的脉型矿床的一个例子。使用 EPMA、拉曼和红外显微光谱法对来自 Bytíz 的铀含量高达 38 wt% 的含铀固体沥青样品进行岩石学、地球化学和矿物学表征。含沥青样品由贱金属硫化物组成：方铅矿、闪锌矿、黄铁矿、黄铜矿，以及少量的四面体、辉锑矿和棘铁矿，以及含锰方解石、石英和硅酸盐（绿泥石、白云母）。固体沥青呈小脉状和液滴状，呈圆形至不规则堆积物，与铀矿和碳酸盐脉有关。