Field occurrence of high-grade metamorphic rocks at telen in the lutzow-holm complex, East Antarctica
© 2014, University of Tsukuba. All Rights Reserved.We report field occurrence and brief petrographical characters of high-grade metamorphic rocks from Tel en in the granulite-facies zone of the Lützow-Holm Complex, East Antarctica, and correlate the dominant lithologies with those in adjacent exposu...
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ftcurtin:oai:espace.curtin.edu.au:20.500.11937/50944 2023-06-11T04:04:39+02:00 Field occurrence of high-grade metamorphic rocks at telen in the lutzow-holm complex, East Antarctica Koizumi, T. Tsunogae, T. Dunkley, Daniel Miyamoto, T. Kato, M. 2014 restricted https://hdl.handle.net/20.500.11937/50944 unknown http://hdl.handle.net/20.500.11937/50944 Journal Article 2014 ftcurtin https://doi.org/20.500.11937/50944 2023-05-30T19:46:37Z © 2014, University of Tsukuba. All Rights Reserved.We report field occurrence and brief petrographical characters of high-grade metamorphic rocks from Tel en in the granulite-facies zone of the Lützow-Holm Complex, East Antarctica, and correlate the dominant lithologies with those in adjacent exposures. The major rock types in Telen are felsic to intermediate orthogneiss, mafic granulite/amphibolite, calc-silicate rocks, felsic garnet gneiss, and pelitic granulite, which are similar to adjacent localities such as Skallen and Skallevikshalsen, although felsic to mafic orthogneisses are dominant in Telen, while calc-silicate rocks and marbles are more abundant in Skallen and Skallevikshalsen. They have monotonous N-S trending foliation dipping gently (about 20-30°) toward the east. Younger granitoids intrude nearly parallel or perpendicular to the metamorphic rocks. Peak metamorphic conditions have been estimated for a garnet-rich mafic granulite as 860-880°C and 10.1-10.5 kbar, which is consistent with the results of adjacent localities. Our study confirmed that Telen-Skallen-Skallevikshalsen region in the central domain of the granulite-facies zone corresponds to a single mass of high-grade metamorphic rocks, which was formed by Late Neoproterozoic to Cambrian high-grade metamorphism possibly related to the final phase of continent-continent collision during the assembly of Gondwana Supercontinent. Article in Journal/Newspaper Antarc* Antarctica East Antarctica Curtin University: espace East Antarctica Skallen ENVELOPE(39.467,39.467,-69.650,-69.650) Skallevikshalsen ENVELOPE(39.333,39.333,-69.692,-69.692) Telen ENVELOPE(39.700,39.700,-69.633,-69.633) |
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Curtin University: espace |
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© 2014, University of Tsukuba. All Rights Reserved.We report field occurrence and brief petrographical characters of high-grade metamorphic rocks from Tel en in the granulite-facies zone of the Lützow-Holm Complex, East Antarctica, and correlate the dominant lithologies with those in adjacent exposures. The major rock types in Telen are felsic to intermediate orthogneiss, mafic granulite/amphibolite, calc-silicate rocks, felsic garnet gneiss, and pelitic granulite, which are similar to adjacent localities such as Skallen and Skallevikshalsen, although felsic to mafic orthogneisses are dominant in Telen, while calc-silicate rocks and marbles are more abundant in Skallen and Skallevikshalsen. They have monotonous N-S trending foliation dipping gently (about 20-30°) toward the east. Younger granitoids intrude nearly parallel or perpendicular to the metamorphic rocks. Peak metamorphic conditions have been estimated for a garnet-rich mafic granulite as 860-880°C and 10.1-10.5 kbar, which is consistent with the results of adjacent localities. Our study confirmed that Telen-Skallen-Skallevikshalsen region in the central domain of the granulite-facies zone corresponds to a single mass of high-grade metamorphic rocks, which was formed by Late Neoproterozoic to Cambrian high-grade metamorphism possibly related to the final phase of continent-continent collision during the assembly of Gondwana Supercontinent. |
format |
Article in Journal/Newspaper |
author |
Koizumi, T. Tsunogae, T. Dunkley, Daniel Miyamoto, T. Kato, M. |
spellingShingle |
Koizumi, T. Tsunogae, T. Dunkley, Daniel Miyamoto, T. Kato, M. Field occurrence of high-grade metamorphic rocks at telen in the lutzow-holm complex, East Antarctica |
author_facet |
Koizumi, T. Tsunogae, T. Dunkley, Daniel Miyamoto, T. Kato, M. |
author_sort |
Koizumi, T. |
title |
Field occurrence of high-grade metamorphic rocks at telen in the lutzow-holm complex, East Antarctica |
title_short |
Field occurrence of high-grade metamorphic rocks at telen in the lutzow-holm complex, East Antarctica |
title_full |
Field occurrence of high-grade metamorphic rocks at telen in the lutzow-holm complex, East Antarctica |
title_fullStr |
Field occurrence of high-grade metamorphic rocks at telen in the lutzow-holm complex, East Antarctica |
title_full_unstemmed |
Field occurrence of high-grade metamorphic rocks at telen in the lutzow-holm complex, East Antarctica |
title_sort |
field occurrence of high-grade metamorphic rocks at telen in the lutzow-holm complex, east antarctica |
publishDate |
2014 |
url |
https://hdl.handle.net/20.500.11937/50944 |
long_lat |
ENVELOPE(39.467,39.467,-69.650,-69.650) ENVELOPE(39.333,39.333,-69.692,-69.692) ENVELOPE(39.700,39.700,-69.633,-69.633) |
geographic |
East Antarctica Skallen Skallevikshalsen Telen |
geographic_facet |
East Antarctica Skallen Skallevikshalsen Telen |
genre |
Antarc* Antarctica East Antarctica |
genre_facet |
Antarc* Antarctica East Antarctica |
op_relation |
http://hdl.handle.net/20.500.11937/50944 |
op_doi |
https://doi.org/20.500.11937/50944 |
_version_ |
1768389476819664896 |