Ore minerals in the colorado-type deposits are of uraninite and coffinite, with associated vanadium and copper minerals . 科罗拉多型矿床中的铀矿物为晶质铀矿和水硅铀矿，与之共生的还有钒，铜矿物。
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In the older rocks below these glacial deposits are detrital uraninite and pyrite , two minerals considered evidence for very low levels of atmospheric oxygen 这些冰河沉积物下方的较老岩层，是沥青铀矿与黄铁矿碎屑；这两种矿物被认定为大气中氧气极为稀少的证据。
