Regional Caledonian structure of Hertugen af Orléans Land, North-East Greenland

Authors

  • R.A Strachan
  • H.F Jepsen
  • F Kalsbeek

DOI:

https://doi.org/10.34194/rapggu.v152.8162

Abstract

Three structural elements of the East Greenland Caledonides are present in Hertugen af Orleans Land: (1) a marginal NNE-SSW trending zone of crystalIine basement rocks overlain by middle Proterozoic sediments (Trekant Series) in the westernmost nunatak area, characterised by folds and thrusts; (2) a central NNE–SSW trending belt of alIochthonous orthogneisses dominated by upright and west-vergent folds; and (3) and eastern N–S trending sinistral shear zone of intensely sheared, mylonitic gneisses (Storstrømmen shear zone). This structural pattern is a continuation of the structural elements in Dronning Louise Land, 40 km to the south-south-east. The late Caledonian Storstrømmen shear zone and its northward continuation define a 10 km wide linear feature of regional significance which can be followed along strike for more than 300 km.

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Published

1991-01-01

How to Cite

Strachan, R., Jepsen, H., & Kalsbeek, F. (1991). Regional Caledonian structure of Hertugen af Orléans Land, North-East Greenland. Rapport Grønlands Geologiske Undersøgelse, 152, 95–102. https://doi.org/10.34194/rapggu.v152.8162

Issue

Vol. 152 (1991): Current Research including Report of Activities, 1990

Section

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.