Terrane correlation between Antarctica, Mozambique and Sri Lanka; comparisons of geochronology, lithology, structure and metamorphism and possible implications for the geology of southern Africa and Antarctica
Analysis of new lithological, structural, metamorphic and geochronological data from extensive mapping in Mozambique permits recognition of two distinct crustal blocks separated by the Lurio Belt shear zone. Extrapolation of the Mozambique data to adjacent areas in Sri Lanka and Dronning Maud Land,...
Published in: | Geological Society, London, Special Publications |
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ftanucanberra:oai:openresearch-repository.anu.edu.au:1885/36166 2024-01-14T10:02:27+01:00 Terrane correlation between Antarctica, Mozambique and Sri Lanka; comparisons of geochronology, lithology, structure and metamorphism and possible implications for the geology of southern Africa and Antarctica Grantham, Geoff H Macey, P H Ingram, B.A. Roberts, M.P. Armstrong, Richard Hokada, T. Shiraishi, Kazuyuki Jackson, Christopher Bisnath, Avinash Manhica, V. http://hdl.handle.net/1885/36166 https://doi.org/10.1144/SP308.4 https://openresearch-repository.anu.edu.au/bitstream/1885/36166/5/ArmstrongRA_RSES_2008_09_Grantham.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/36166/7/01_Grantham_Terrane_correlation_between_2008.pdf.jpg unknown Geological Society of London 0305-8719 http://hdl.handle.net/1885/36166 doi:10.1144/SP308.4 https://openresearch-repository.anu.edu.au/bitstream/1885/36166/5/ArmstrongRA_RSES_2008_09_Grantham.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/36166/7/01_Grantham_Terrane_correlation_between_2008.pdf.jpg Geological Society of London Special Publication Keywords: correlation geochronology Gondwana klippe lithology metamorphism nappe sandstone shear zone structural geology terrane thrust fault Antarctica Damara Belt Mozambique Namibia Sri Lanka Journal article ftanucanberra https://doi.org/10.1144/SP308.4 2023-12-15T09:35:38Z Analysis of new lithological, structural, metamorphic and geochronological data from extensive mapping in Mozambique permits recognition of two distinct crustal blocks separated by the Lurio Belt shear zone. Extrapolation of the Mozambique data to adjacent areas in Sri Lanka and Dronning Maud Land, Antarctica permits the recognition of similar crustal blocks and allows the interpretation that the various blocks in Mozambique, Sri Lanka and Antarctica were once part of a mega-nappe, forming part of northern Gondwana, which was thrust-faulted c. 600 km over southern Gondwana during amalgamation of Gondwana at c. 590-550 Ma. The data suggest a deeper level of erosion in southern Africa compared with Antarctica. It is possible that this thrust domain extends, through the Zambezi Belt or Valley, as far west as the Damara Orogen in Namibia with the Naukluft nappes in Namibia, the Makuti Group, the Masoso Suite in the Rushinga area and the Urungwe klippen in northern Zimbabwe, fitting the mega-nappe pattern. Erosional products of the mountain belt are now represented by 700-400 Ma age detrital zircons present in the various sandstone formations of the Transantarctic Mountains, their correlatives in Australia, as well as the Urfjell Group (western Dronning Maud Land) and probably the Natal Group in South Africa. Article in Journal/Newspaper Antarc* Antarctica Dronning Maud Land Australian National University: ANU Digital Collections Dronning Maud Land Transantarctic Mountains Urfjell ENVELOPE(-5.200,-5.200,-73.850,-73.850) Geological Society, London, Special Publications 308 1 91 119 |
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Open Polar |
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Australian National University: ANU Digital Collections |
op_collection_id |
ftanucanberra |
language |
unknown |
topic |
Keywords: correlation geochronology Gondwana klippe lithology metamorphism nappe sandstone shear zone structural geology terrane thrust fault Antarctica Damara Belt Mozambique Namibia Sri Lanka |
spellingShingle |
Keywords: correlation geochronology Gondwana klippe lithology metamorphism nappe sandstone shear zone structural geology terrane thrust fault Antarctica Damara Belt Mozambique Namibia Sri Lanka Grantham, Geoff H Macey, P H Ingram, B.A. Roberts, M.P. Armstrong, Richard Hokada, T. Shiraishi, Kazuyuki Jackson, Christopher Bisnath, Avinash Manhica, V. Terrane correlation between Antarctica, Mozambique and Sri Lanka; comparisons of geochronology, lithology, structure and metamorphism and possible implications for the geology of southern Africa and Antarctica |
topic_facet |
Keywords: correlation geochronology Gondwana klippe lithology metamorphism nappe sandstone shear zone structural geology terrane thrust fault Antarctica Damara Belt Mozambique Namibia Sri Lanka |
description |
Analysis of new lithological, structural, metamorphic and geochronological data from extensive mapping in Mozambique permits recognition of two distinct crustal blocks separated by the Lurio Belt shear zone. Extrapolation of the Mozambique data to adjacent areas in Sri Lanka and Dronning Maud Land, Antarctica permits the recognition of similar crustal blocks and allows the interpretation that the various blocks in Mozambique, Sri Lanka and Antarctica were once part of a mega-nappe, forming part of northern Gondwana, which was thrust-faulted c. 600 km over southern Gondwana during amalgamation of Gondwana at c. 590-550 Ma. The data suggest a deeper level of erosion in southern Africa compared with Antarctica. It is possible that this thrust domain extends, through the Zambezi Belt or Valley, as far west as the Damara Orogen in Namibia with the Naukluft nappes in Namibia, the Makuti Group, the Masoso Suite in the Rushinga area and the Urungwe klippen in northern Zimbabwe, fitting the mega-nappe pattern. Erosional products of the mountain belt are now represented by 700-400 Ma age detrital zircons present in the various sandstone formations of the Transantarctic Mountains, their correlatives in Australia, as well as the Urfjell Group (western Dronning Maud Land) and probably the Natal Group in South Africa. |
format |
Article in Journal/Newspaper |
author |
Grantham, Geoff H Macey, P H Ingram, B.A. Roberts, M.P. Armstrong, Richard Hokada, T. Shiraishi, Kazuyuki Jackson, Christopher Bisnath, Avinash Manhica, V. |
author_facet |
Grantham, Geoff H Macey, P H Ingram, B.A. Roberts, M.P. Armstrong, Richard Hokada, T. Shiraishi, Kazuyuki Jackson, Christopher Bisnath, Avinash Manhica, V. |
author_sort |
Grantham, Geoff H |
title |
Terrane correlation between Antarctica, Mozambique and Sri Lanka; comparisons of geochronology, lithology, structure and metamorphism and possible implications for the geology of southern Africa and Antarctica |
title_short |
Terrane correlation between Antarctica, Mozambique and Sri Lanka; comparisons of geochronology, lithology, structure and metamorphism and possible implications for the geology of southern Africa and Antarctica |
title_full |
Terrane correlation between Antarctica, Mozambique and Sri Lanka; comparisons of geochronology, lithology, structure and metamorphism and possible implications for the geology of southern Africa and Antarctica |
title_fullStr |
Terrane correlation between Antarctica, Mozambique and Sri Lanka; comparisons of geochronology, lithology, structure and metamorphism and possible implications for the geology of southern Africa and Antarctica |
title_full_unstemmed |
Terrane correlation between Antarctica, Mozambique and Sri Lanka; comparisons of geochronology, lithology, structure and metamorphism and possible implications for the geology of southern Africa and Antarctica |
title_sort |
terrane correlation between antarctica, mozambique and sri lanka; comparisons of geochronology, lithology, structure and metamorphism and possible implications for the geology of southern africa and antarctica |
publisher |
Geological Society of London |
url |
http://hdl.handle.net/1885/36166 https://doi.org/10.1144/SP308.4 https://openresearch-repository.anu.edu.au/bitstream/1885/36166/5/ArmstrongRA_RSES_2008_09_Grantham.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/36166/7/01_Grantham_Terrane_correlation_between_2008.pdf.jpg |
long_lat |
ENVELOPE(-5.200,-5.200,-73.850,-73.850) |
geographic |
Dronning Maud Land Transantarctic Mountains Urfjell |
geographic_facet |
Dronning Maud Land Transantarctic Mountains Urfjell |
genre |
Antarc* Antarctica Dronning Maud Land |
genre_facet |
Antarc* Antarctica Dronning Maud Land |
op_source |
Geological Society of London Special Publication |
op_relation |
0305-8719 http://hdl.handle.net/1885/36166 doi:10.1144/SP308.4 https://openresearch-repository.anu.edu.au/bitstream/1885/36166/5/ArmstrongRA_RSES_2008_09_Grantham.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/36166/7/01_Grantham_Terrane_correlation_between_2008.pdf.jpg |
op_doi |
https://doi.org/10.1144/SP308.4 |
container_title |
Geological Society, London, Special Publications |
container_volume |
308 |
container_issue |
1 |
container_start_page |
91 |
op_container_end_page |
119 |
_version_ |
1788057472249888768 |