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Environmental impacts of mining can occur at local, regional, and global scales through direct and indirect mining practices. Impacts can result in erosion, sinkholes, loss of biodiversity, or the contamination of soil, groundwater, and surface water by the chemicals emitted from mining processes.

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gold mining" as follows: "[The] mining of gold by any method not involving substantial expenditure by an individual or group of persons not exceeding nine in number or by a co-operative society made up of ten or more persons". By law, small-scale gold mining

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Comparing Areas Where Sedimentary Particles Are Deposited Sedimentary rock consisting of silt- and clay-size particles.These fine-grained detrital rocks account for well over half of all sedimentary rocks.The particles in these rocks are so small that they cannot be readily identified without great magnification, and this makes more difficult to study and analyze than most other sedimentary rocks.

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