Algoman orogeny

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1	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) Add to Reading List Source URL: www.dot.state.mn.us Language: English - Date: 2013-02-07 12:17:57 Metamorphic petrology Cratons Terranes Orogeny Archean Algoman orogeny Gneiss Duluth Complex Rock Geology Historical geology Geological history of Earth
2	PDF Document Add to Reading List Source URL: www.keckgeology.org Language: English - Date: 2007-12-12 16:51:10 Historical geology Geology of North America Geological history of Earth Economic geology Superior craton Algoman orogeny Zircon Precambrian Metamorphic rock Geology Plate tectonics Cratons
3	PDF Document Add to Reading List Source URL: www.dot.state.mn.us Language: English - Date: 2008-05-30 11:44:01 Precambrian Archean Geology of Minnesota Geotechnical engineering Proterozoic Algoman orogeny Bed Geologic time scale Duluth Complex Geology Historical geology Geological history of Earth