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Date: 2013-02-26 16:32:21 Sedimentary rocks Coal Geology Anthracite Peabody Energy Surface mining Bituminous coal Powder River Basin Coal companies of Australia Coal mining Energy Economic geology		C O L O R A D O Add to Reading List Source URL: geosurvey.state.co.us Download Document from Source Website File Size: 1,85 MB Share Document on Facebook

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