Basin evolution of the Paleoproterozoic
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Richard W. Ojakangas; Jukka S. Marmo; Kim I. Heiskanen
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Article
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2001
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Elsevier Science
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English
โ 617 KB
The peneplaned Archean craton of the Fennoscandian Shield served as a platform upon which a continental margin assemblage, the Karelian Supergroup, was deposited between ,2.45 and ,1.9 Ga. Major subaerial unconformities separate ยฎve sedimentary-volcanic groups of the supergroup ร the Sumian, Sarioli