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Date: 2015-12-17 16:15:27 | ROCK AND MINERAL COLLECTING AREAS IN IOWA Sedimentary rocks Conglomerate - Exposures of white and gray conglomerate belonging to the Pennsylvanian System of rocks extend northeastward through Pleasant Township, Lucas CoAdd to Reading ListSource URL: s-iihr34.iihr.uiowa.eduDownload Document from Source WebsiteFile Size: 1,38 MBShare Document on Facebook |