@inbook{3e6c31b049934c5aab38884559d4e8aa,
title = "Polyorogenic history of the East Greenland Caledonides",
abstract = "The Caledonian orogen of East Greenland contains remnants of Archean, Paleoproterozoic, late Mesoproterozoic, and early Neoproterozoic rocks that occur within far-traveled thrust sheets, and bear witness to a complex polyorogenic history of the region prior to Caledonian orogenesis. Archean and Paleoproterozoic complexes consist mainly of granitoid orthogneisses. A succession of Paleoproterozoic tholeiitic metabasalts is present in some of the foreland windows. A major unit of late Mesoprotero zoic metasedimentary rocks (Krummedal supracrustal sequence) contains early Neoproterozoic (ca. 950 Ma) as well as Caledonian granites. There is evidence for Archean (ca. 2800-2600 Ma), Paleoproterozoic (2000-1750 Ma), and late Grenvillian (ca. 950 Ma) deformation and metamorphism, but Caledonian overprinting complicates the study of these events. This paper presents a broad overview of the various rock units with structural, geochemical, and geochronologic data. The Paleoproterozoic metabasaltic rocks from the foreland windows are described in more detail.",
keywords = "Caledonian orogen, East Greenland, Grenvillian granites, Mesoproterozoic supracrustal rocks, Paleoproterozoic basement",
author = "Feiko Kalsbeek and Kristine Thrane and A.K. Higgins and Jepsen, \{Hans F.\} and Leslie, \{A. Graham\} and Nutman, \{Allen P.\} and Robert Frei",
year = "2008",
doi = "10.1130/2008.1202(03)",
language = "English",
isbn = "9780813712024",
series = "Geological Society of America Memoir",
publisher = "Geological Society of America",
pages = "55--72",
editor = "A.K. Higgins and Gilotti, \{Jane A.\} and Smith, \{M. Paul\}",
booktitle = "The Greenland Caledonides: Evolution of the Northeast Margin of Laurentia",
address = "United States",
}