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Definition of Keweenawan
1. Proper noun. (geology) The younger division of the Proterozoic eon as represented by rocks in the Great Lakes region of the United States ¹
¹ Source: wiktionary.com
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1. Proper noun. (geology) The younger division of the Proterozoic eon as represented by rocks in the Great Lakes region of the United States ¹
¹ Source: wiktionary.com