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![]() Date: 2008-05-30 11:44:01Precambrian Archean Geology of Minnesota Geotechnical engineering Proterozoic Algoman orogeny Bed Geologic time scale Duluth Complex Geology Historical geology Geological history of Earth | Source URL: www.dot.state.mn.usDownload Document from Source WebsiteFile Size: 4,51 MBShare Document on Facebook |
![]() | GEOLOGIC MAP OF MINNESOTA SIMPLIFIED BEDROCK GEOLOGY 3.6 Billion to 65 Million Years Ago DESCRIPTION OF MAP UNITS (mya = million years ago, bya = billion years ago)DocID: xLfG - View Document |
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