Fold belts and metamorphic zones of northern Ellesmere Island and North Greenland

The Innuitian tectonic province extends in its eastern part through northern Ellesmere Island and across North Greenland. The mid- to late Palaeozoic Ellesmerian orogeny produced NE-SW to E-W trending fold belts and metamorphic zones in the strata of the Franklinian geosyncline. The late Cretaceous-...

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Bibliographic Details
Published in:Meddelelser om Grønland. Geoscience
Main Authors: Higgins, Anthony K., Mayr, Ulrich, Soper, Norman J.
Format: Article in Journal/Newspaper
Language:English
Published: The Commission for Scientific Research in Greenland /Danish Polar Center 1982
Subjects:
Online Access:https://tidsskrift.dk/meddrgroenland_geosci/article/view/139578
Description
Summary:The Innuitian tectonic province extends in its eastern part through northern Ellesmere Island and across North Greenland. The mid- to late Palaeozoic Ellesmerian orogeny produced NE-SW to E-W trending fold belts and metamorphic zones in the strata of the Franklinian geosyncline. The late Cretaceous-Tertiary Eurekan orogeny deformed the Carboniferous-Tertiary rocks of the Sverdrup and Wandel Sea Basins, and overprinted or accentuated the older structures of the Franklinian geosyncline. The locations of the south limit of Ellesmerian folding, and of fold belts of comparable style, deformation intensity and metamorphic grade on the two sides of the Nares Strait lineament are consistent with models of left-lateral displacement in the range 0-50 km. Models of displacement greater than 50 km introduce increasingly improbable mismatches of fold belts and metamorphic zones. The Innuitian tectonic province extends in its eastern part through northern Ellesmere