回复@踢飞大师: 根据美国地质调查局(USGS)发布的《Mineral Commodity Summaries 2021》报告,2020年全球铁矿石原矿储量约1800亿吨,比上年增加100亿吨。其中,含铁量铁矿石储量在840亿吨左右,占全球铁矿石原矿储量的46.67%,但分布极为不平均。 铁矿石主要集中在澳大利亚、俄罗斯、巴西、中国等地,四个国家占比超过70%。其...
Brian W Jaskula.USGS Mineral Commodity Summaries. . 2010Hedrick JB 2010 Rare Earths. In: USGS Mineral Commodity Summaries, January 2010. (Reston, VA: USGS) pp 128-129USGS-b (2009). "USGS Mineral Commodity Summaries, Cement." http://minerals.usgs.gov/minerals/pubs/commodity/cement/mcs-2009...
US mineral production value falls 2% YOY to $82.3B in 2020 – USGS U.S. mines produced approximately $82.3 billion worth of minerals in 2020, decreasing by about 2% compared to 2019, according to the United States Geological Survey's "Mineral Commodity Summaries" report released Feb. 2. The...
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文档标签: Mineral Commodity Summaries 2015 - USGS 系统标签: usgs summaries copper commodity mineral refined 48COPPER(Datainthousandmetrictonsofcoppercontentunlessotherwisenoted)DomesticProductionandUse:In2014,U.S.mineproductionofcopperincreasedby10%toabout1.37milliontons,andwasvaluedatabout$9.7billion.Arizona...
Mineral Commodity summaries 2010 - USGS:矿产品概要2010局主要,帮助,USGS,矿产品概要,矿产品,usgs 文档格式: .pdf 文档大小: 1.99M 文档页数: 196页 顶/踩数: 0/0 收藏人数: 0 评论次数: 0 文档热度: 文档分类: 论文--毕业论文 文档标签:
4 Also includes refractory-grade kaolin. 5 Defined as imports – exports. 6 See Appendix C for resource/reserve definitions and information concerning data sources. U.S. Geological Survey, Mineral Commodity Summaries, January 2015 相关精品文档 更多 in 2013 - USGS Mineral Resources Program Cop...