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Introduction Urbanization Mine Wastes Influence of Mining

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Mercury is quite mobile in the natural environment, and easily finds its way into water, soil, plants and animals. This is certainly true in the lower Carson River drainage. Fish within the drainage have toxic levels of mercury, and most people avoid eating them. The Environmental Protection Agency has designated the area a Superfund site, and it has been the focus of that agency's study for a number of years.

Removal of the wastes as a geologic occurrance

Because the scale of impact along the Carson River is so large, natural detoxification will occur over the eons by subsequent sedimentation, dilution and diffusion. Man will have little or no effect to detoxifying the sediments along the Carson River because the job would prove insurmountable. The presence of toxic wastes will certainly be recorded in the accumulation of sediments at the river's termination at the Carson Sink. Future geologists 100,000 years from now will find a curious sand and clay layer rich in gold silver, mercury, arsenic and other elements derived from the Comstock. This layer will have a sharp basal contact and will defuse upwards into normal sedimentation sequences. Indeed, the Carson Sink is the ultimate tailings pond for the Comstock. Ironically this is also the site of an amazing population of both migrating and non-migrating water fowl.

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