Eastern Mineral and Environmental Resources Science Center

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Long-term environmental effects of Roman mining in the Plasenzuela silver-lead district of Extremadura, Spain

Mineral Resources Program National Minerals Information / Geology, Minerals, Energy and Geophysics
Alaska / Crustal Geophysics and Geochemistry /  Central Mineral and Environmental Resources /  Spatial Data

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Page Last Modified: 20-Dec-2016@15:48