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Titlebook: Environmental Impacts of Mining Activities; Emphasis on Mitigati José M. Azcue Book 1999 Springer-Verlag Berlin Heidelberg 1999 Contaminati

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51#
發(fā)表于 2025-3-30 10:59:54 | 只看該作者
52#
發(fā)表于 2025-3-30 13:06:47 | 只看該作者
A Critique of Keynesian Economicss located near the mining centers. In terms of its quality and composition, lignite in eastern Germany can be classified into West and East Elbian formations, corresponding to the Central German and the Lusatian mining districts.
53#
發(fā)表于 2025-3-30 18:17:06 | 只看該作者
Raphael J. Heffron,William J. Nuttalledominantly in the silt to fine sand size range (1 μm-1 mm). Waste rock is essentially wall rock material removed to access and mine ore. Waste rock material, composed of particles ranging in size from silt to boulder size fragments, are often disposed of in large piles.
54#
發(fā)表于 2025-3-30 23:00:08 | 只看該作者
Characterization of Mine Wastes for Prediction of Acid Mine Drainageedominantly in the silt to fine sand size range (1 μm-1 mm). Waste rock is essentially wall rock material removed to access and mine ore. Waste rock material, composed of particles ranging in size from silt to boulder size fragments, are often disposed of in large piles.
55#
發(fā)表于 2025-3-31 03:41:27 | 只看該作者
56#
發(fā)表于 2025-3-31 08:32:47 | 只看該作者
57#
發(fā)表于 2025-3-31 11:18:23 | 只看該作者
1863-5520 environment is needed. This book provides information on biological and physico-chemical treatments of mining effluents, on factors affecting human health and on environmental effects that have to be taken into account by the mining industry when aiming for sustainable development of their industry
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