The Ludicovian-Kalevian boundary in the northern Ladoga region: Geological relations and isotopic age

New data on the geological structure of the upper part of the Sortavala volcanic section are presented. The chronostratigraphic correlation of successions of the Karelian Complex in the northern Ladoga region and the Svecofennian area of Finland suggests the following conclusion. Deposition of the S...

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Bibliographic Details
Published in:Doklady earth sciences 2006-03, Vol.407 (2), p.388-392
Main Authors: Matrenichev, V. A., Vrevsky, A. V., Sergeev, S. A., Matukov, D. A.
Format: Article
Language:English
Subjects:
Geological structures
Geology
Metamorphism
Stratigraphy
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Summary:New data on the geological structure of the upper part of the Sortavala volcanic section are presented. The chronostratigraphic correlation of successions of the Karelian Complex in the northern Ladoga region and the Svecofennian area of Finland suggests the following conclusion. Deposition of the Sortavala volcanosedimentary complex, its metamorphism, erosion, and unconformable overlapping by Ladoga quartzites and arkosic sandstones predated the Svecofennian subduction in the pericraton zone.
ISSN:1028-334X
1531-8354
DOI:10.1134/S1028334X0603010X