Early Proterozoic thrust tectonics east of Ataa Sund, north-east Disko Bugt, West Greenland

Authors

  • Jan C. Escher Geological Survey of Denmark and Greenland, Thoravej 8, DK-2400 Copenhagen NV, Denmark
  • Michael J. Ryan Department of Geology, University of Portsmouth, Portsmouth PO1 3HE, UK
  • Mogens Marker Geological Institute, University of Copenhagen, Øster Voldgade 10, DK-1350 Copenhagen K, Denmark

DOI:

https://doi.org/10.34194/ggub.v181.5124

Keywords:

Archaean rocks, Disko Bugt, Proterozoic, thrust tectonics, West Greenland

Abstract

The area east of Ataa Sund consists mainly of amphibolite facies grade Archaean gneisses, amphibolites and granites. Intense early Proterozoic deformation led to low-angle ductile imbrication of thrust sheets with movement directions to the west. Late tectonic Proterozoic basic sills with olivine-rich cumulates were intruded along the thrust sheets.

Geological sketch map of the Ataa area north-east of Disko Bugt.

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Published

1999-07-22

How to Cite

Escher, J. C. ., Ryan, M. J. ., & Marker, M. . (1999). Early Proterozoic thrust tectonics east of Ataa Sund, north-east Disko Bugt, West Greenland. Geology of Greenland Survey Bulletin, 181, 171–179. https://doi.org/10.34194/ggub.v181.5124

Issue

Vol. 181 (1999): Precambrian geology of the Disko Bugt region, West Greenland

Section

RESEARCH ARTICLE

License

This article is distributed under a CC-BY 4.0 licence, permitting free redistribution and reproduction for any purpose, even commercial, provided proper citation of the original work. Author(s) retain copyright over the article contents.