Early Proterozoic thrust tectonics east of Ataa Sund

The area east of Ataa Sund consists mainly of amphibolite facies grade Archaean gneisses, amphi-bolites 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-r...

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Bibliographic Details
Main Authors: North-east Disko Bugt, West Greenl, Jan C. Escher, Michael J. Ryan, Mogens Marker
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Subjects:
Archaean rocks
Disko Bugt
Proterozoic
thrust tectonics
West Greenland The Ataa area
north-east Disko Bugt
lies between the early Proterozoic Nagssugtoqidian and Rinkian orogenic
Ataa Sund
Greenland
Sund
Disko bugt
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.619.9355
http://www.geus.dk/publications/bull-gl/nr181/nr181_p171-179.pdf
Description
Summary:The area east of Ataa Sund consists mainly of amphibolite facies grade Archaean gneisses, amphi-bolites 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.

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