Geology of the Kottas terrane, Heimefrontfjella (East Antarctica)
The Kottas Terrane is the northernmost crustal block in the Heimefrontfjella. It is composed of juvenile Mesoproterozoic igneous rocks of calcalkaline composition and minor sedimentary rocks, which underwent amphibolite-facies metamorphism in late Mesoproterozoic times (Grenvillianage orogeny). Wher...
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Deutschen Gesellschaft für Polarforschung
2009
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ftnerc:oai:nora.nerc.ac.uk:8955 2023-05-15T14:05:16+02:00 Geology of the Kottas terrane, Heimefrontfjella (East Antarctica) Bauer, Wilfried Jacobs, Joachim Thomas, Robert J. Spaeth, Gerhard Weber, Klaus 2009 text http://nora.nerc.ac.uk/id/eprint/8955/ https://nora.nerc.ac.uk/id/eprint/8955/1/Bau2009g.pdf http://www.polarforschung.de/ en eng Deutschen Gesellschaft für Polarforschung https://nora.nerc.ac.uk/id/eprint/8955/1/Bau2009g.pdf Bauer, Wilfried; Jacobs, Joachim; Thomas, Robert J.; Spaeth, Gerhard; Weber, Klaus. 2009 Geology of the Kottas terrane, Heimefrontfjella (East Antarctica). Polarforschung, 79 (1). 23-28. Earth Sciences Publication - Article PeerReviewed 2009 ftnerc 2023-02-04T19:25:47Z The Kottas Terrane is the northernmost crustal block in the Heimefrontfjella. It is composed of juvenile Mesoproterozoic igneous rocks of calcalkaline composition and minor sedimentary rocks, which underwent amphibolite-facies metamorphism in late Mesoproterozoic times (Grenvillianage orogeny). Whereas central Heimefrontfjella was strongly affected by the East-African – Antarctic Orogeny in Late Neoproterzoic to Cambrian times, the Kottas Terrane shows only a weak overprint at brittle/ductile transition conditions, mostly manifested as northward-directed thrusts. The boundary between the Kottas and Sivorg terranes of central Heimefrontfjella is marked by the prominent Heimefront Shear Zone, which is exposed in two small nunataks immediately south of the main massif of Kottasberge. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Polarforschung Natural Environment Research Council: NERC Open Research Archive Antarctic East Antarctica Heimefrontfjella ENVELOPE(-11.000,-11.000,-74.667,-74.667) Kottasberge ENVELOPE(-9.750,-9.750,-74.333,-74.333) |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
topic |
Earth Sciences |
spellingShingle |
Earth Sciences Bauer, Wilfried Jacobs, Joachim Thomas, Robert J. Spaeth, Gerhard Weber, Klaus Geology of the Kottas terrane, Heimefrontfjella (East Antarctica) |
topic_facet |
Earth Sciences |
description |
The Kottas Terrane is the northernmost crustal block in the Heimefrontfjella. It is composed of juvenile Mesoproterozoic igneous rocks of calcalkaline composition and minor sedimentary rocks, which underwent amphibolite-facies metamorphism in late Mesoproterozoic times (Grenvillianage orogeny). Whereas central Heimefrontfjella was strongly affected by the East-African – Antarctic Orogeny in Late Neoproterzoic to Cambrian times, the Kottas Terrane shows only a weak overprint at brittle/ductile transition conditions, mostly manifested as northward-directed thrusts. The boundary between the Kottas and Sivorg terranes of central Heimefrontfjella is marked by the prominent Heimefront Shear Zone, which is exposed in two small nunataks immediately south of the main massif of Kottasberge. |
format |
Article in Journal/Newspaper |
author |
Bauer, Wilfried Jacobs, Joachim Thomas, Robert J. Spaeth, Gerhard Weber, Klaus |
author_facet |
Bauer, Wilfried Jacobs, Joachim Thomas, Robert J. Spaeth, Gerhard Weber, Klaus |
author_sort |
Bauer, Wilfried |
title |
Geology of the Kottas terrane, Heimefrontfjella (East Antarctica) |
title_short |
Geology of the Kottas terrane, Heimefrontfjella (East Antarctica) |
title_full |
Geology of the Kottas terrane, Heimefrontfjella (East Antarctica) |
title_fullStr |
Geology of the Kottas terrane, Heimefrontfjella (East Antarctica) |
title_full_unstemmed |
Geology of the Kottas terrane, Heimefrontfjella (East Antarctica) |
title_sort |
geology of the kottas terrane, heimefrontfjella (east antarctica) |
publisher |
Deutschen Gesellschaft für Polarforschung |
publishDate |
2009 |
url |
http://nora.nerc.ac.uk/id/eprint/8955/ https://nora.nerc.ac.uk/id/eprint/8955/1/Bau2009g.pdf http://www.polarforschung.de/ |
long_lat |
ENVELOPE(-11.000,-11.000,-74.667,-74.667) ENVELOPE(-9.750,-9.750,-74.333,-74.333) |
geographic |
Antarctic East Antarctica Heimefrontfjella Kottasberge |
geographic_facet |
Antarctic East Antarctica Heimefrontfjella Kottasberge |
genre |
Antarc* Antarctic Antarctica East Antarctica Polarforschung |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Polarforschung |
op_relation |
https://nora.nerc.ac.uk/id/eprint/8955/1/Bau2009g.pdf Bauer, Wilfried; Jacobs, Joachim; Thomas, Robert J.; Spaeth, Gerhard; Weber, Klaus. 2009 Geology of the Kottas terrane, Heimefrontfjella (East Antarctica). Polarforschung, 79 (1). 23-28. |
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1766277086391042048 |