澳大利亚《采矿》和美国《工程与采矿杂志》报道了美国、加拿大等国和地区1977年、1978年和1979年的铀矿勘探、生产和经费情况,现按国家摘要如下: 美国美国是世界最大的产铀国,1977年的铂产量比1976年增加31％,达到12,847吨,占西方世界的43％。美国有251个地下采掘的铀矿山,占总 Australia’s “Mining” and the US’s “Engineering and Mining Journal” reported on uranium exploration, production, and funding in the United States, Canada, and other countries and regions in 1977, 1978, and 1979. The summary is as follows: The US is the largest in the world. In uranium-producing countries, platinum production in 1977 increased by 31% from 1976 to 12,847 tons, accounting for 43% of the Western world. There are 251 uranium mines underground in the U.S.