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The crystalline basement of Estonia: rock complexes of the Palaeoproterozoic Orosirian and Statherian and Mesoproterozoic Calymmian periods, and regional correlations
2009
Proceedings of the Estonian Academy of Sciences. Geology = Teaduste Akadeemia toimetised
New data on the Fennoscandian Shield and the Baltic area suggest a need for reinterpretation of the stratigraphy of Estonian Precambrian rock complexes. The rocks of the Tallinn Zone formed in the framework of the Fennian orogeny at the margin of the Bergslagen microcontinent 1.90-1.88 Ga ago. The precise age of the Alutaguse Zone is not known. It may have formed either during the 1.93-1.91 Ga Lapland-Savo orogeny or as a rifted eastern part of the Tallinn Zone in the Fennian orogeny. The
doi:10.3176/earth.2009.4.01
fatcat:vgiwidgvubdo5lw4vu23dqco2a