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美国西部层状铀矿床是世界上最有名的铀矿床。其产量惊人:80年前发现的矿床经过70多年的开采,至今还拥有已探明的铀矿储量约50万吨。其储量占美国铀储量的95—97％,相当于世界铀储量的35％。美国共有约4,400个《砂岩型》矿床和矿点。但是,其中50％以上的矿床的金属量不超过2.5吨,储量在万吨以上的大型铀矿床不超过10个,其中有格兰茨矿带的巨型矿床(拉古纳、泰勒山、安布罗西亚湖和许多其它矿床),其探明储量约30万吨,以及怀俄明的一些大型矿床(谢利盆地、气山、海兰、泡德河盆地),每个盆地储量达3—5万
The western United States bedded uranium deposit is the world’s most famous uranium deposit. Its output is staggering: the deposits discovered 80 years ago, after more than 70 years of mining, still have about 500,000 tons of proven uranium reserves. Its reserves account for 95-97% of the U.S. uranium reserves, equivalent to 35% of the world’s uranium reserves. There are about 4,400 “sandstone-type” deposits and mines in the United States. However, more than 50% of these deposits do not contain more than 2.5 tons of metal and no more than 10 large-scale uranium deposits of more than 10,000 tons include the giant deposits of the Granges (Laguna, Taylor Hill, Amblesburg Lake Rosia and many other deposits) with a proven reserves of about 300,000 tons and some of Wyoming’s large deposits (the Shelly Basin, the Gas Mountain, the Highland, the Bubde Basin)