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引言法国核原料总公司(cogéma)在克鲁齐伊(Crouzille)矿务局管辖范围内的利摩日(Limoges)北部二十多公里的地区,20号公路两侧开发铀矿。含铀矿脉埋藏在圣·西尔韦斯特尔(saint-sylvestre)矿体双云母花岗岩中,矿床属于石炭纪。二迭纪矿化带形成主要的矿
Introduction Cogéma develops uranium deposits on both sides of Route 20 in more than twenty kilometers of northern Limoges within the jurisdiction of the Crouzille Mining Authority. Uranium-bearing veins are buried in the biotite mica of the saint-sylvestre ore body belonging to the Carboniferous. Permian mineralization belt formed the main mine