MINING FEATURE I HOMETOWNFOCUS.US Editor’s note: When I was in college, majoring in English, my father insisted I also major in geology. He suspected I would end up on the Iron Range and I suppose he thought geology m

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Date: 2015-01-04 14:21:33 Geological history of Earth Geology of North America Plate tectonics Duluth Complex Midcontinent Rift System Archean Superior craton Gunflint Range Lake Superior Geology Geology of Minnesota Cratons		MINING FEATURE I HOMETOWNFOCUS.US Editor’s note: When I was in college, majoring in English, my father insisted I also major in geology. He suspected I would end up on the Iron Range and I suppose he thought geology m Add to Reading List Source URL: www.hometownfocus.us Download Document from Source Website File Size: 629,85 KB Share Document on Facebook

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