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庞阿尔朗矿是科热玛公司在盖朗德高地探明的唯一大型铀矿床,位于大西洋沿岸卢瓦尔省皮里亚克市,距海500米,于1975年用小型露天矿开采,随着生产的发展,目前采矿作业已延深到海下,有大量咸海水涌入。目前勘探深度达200米,矿体十分复杂,但矿石品位较高(每吨矿石含铀10公斤)。矿山年产量波动很大,在20～120吨之间。为了继续向下开采,须钻许多水平或微倾斜(10‰)探孔。咸海水和岩层水经由直
The Pondorrain is the only large-scale uranium deposit Georgetown has proven to be in the Gelande Heights. It is located in the city of Pialiac, Loire-Atlantique, 500 m from the sea and was mined in 1975 with a small open pit mine Production development, mining operations have now been extended to the sea, there is a large influx of salty seawater. At present exploration depth of 200 meters, the ore body is very complex, but the ore grade is higher (per ton of ore containing uranium 10 kg). Large fluctuations in annual output of mines, between 20 to 120 tons. To continue drilling down, many horizontal or slightly inclined (10 ‰) drilling holes are drilled. Salty sea water and rock water through the straight