File:Evolution minerai cuivre.svg

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Summary

DescriptionEvolution minerai cuivre.svg	Français : Evolution de la richesse du minerai de cuivre extrait dans différents pays. English: Evolution of the extracted copper ore grade in different countries. Deutsch: Evolution des extrahierten Kupfer Erz in verschiedenen Ländern. Español: Evolución de la ley del mineral de cobre extraído en diferentes países.
Date	7 August 2015
Source	Own work, graphic from Epuisement des ressources naturelles, CNRS. The 1880-1910 US data are from Natural Resources, Neither Curse Nor Destiny, p. 190, Lederman & Maloney
Author	Borvan53

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File history

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	Date/Time	Dimensions	User	Comment
current	18:32, 9 April 2022	1,734 × 1,270 (36 KB)	Wiki LIC	Spanish text
	20:14, 8 December 2018	1,734 × 1,270 (41 KB)	Borvan53	+more accurate american curve (data from USGS, 1905 to 2012), see File:Grade of US Copper Ore.png and [https://minerals.usgs.gov/minerals/pubs/commodity/copper/ USGS data]
	13:13, 11 August 2015	1,734 × 1,270 (40 KB)	Borvan53	cosmetic
	13:09, 11 August 2015	1,734 × 1,270 (40 KB)	Borvan53	cosmetic
	19:46, 7 August 2015	1,734 × 1,270 (40 KB)	Borvan53	User created page with UploadWizard