Structural evolution of the Hudsonian Torngat Orogen in the North River map area, Labrador: evidence for east-west transpressive collision of Nain and Rae continental blocks

M. J. Van Kranendonk, I. Ermanovics

Research output: Contribution to journalArticle

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The Hudsonian Torngat Orogen in the North River map area, Labrador, evolved through 1) early thrusting and associated isoclinal folding in lower Proterozoic supracrustal cover rocks, and the development of a regional tectonic fabric at peak metamorphic grade; 2) folding and intense shearing on subvertical planes, characterized by a subhorizontal NNW-plunging extension lineation during sinistral transpression; and 3) E-directed thrusting during uplift of the orogen. These structures are interpreted as progressive features that resulted from E-W oblique collision of the Archean Nain and Rae continental blocks across a 160°-striking boundary. -Authors

Original languageEnglish
Pages (from-to)283-288
Number of pages6
JournalGeoscience Canada
Issue number4
Publication statusPublished - Jan 1 1990
Externally publishedYes


ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)

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