Uncharted permian to jurassic continental deposits in the far north of victoria land, east antarctica
© 2020 The Author(s). Published by The Geological Society of London. All rights reserved.The remote lower reaches of the Rennick Glacier in the far north of Victoria Land hold some of the least-explored outcrop areas of the Transantarctic basin system. Following recent international field-work effor...
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Online Access: | https://hdl.handle.net/10371/197852 https://doi.org/10.1144/jgs2020-062 |
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ftseoulnuniv:oai:s-space.snu.ac.kr:10371/197852 2024-01-14T10:02:21+01:00 Uncharted permian to jurassic continental deposits in the far north of victoria land, east antarctica Bomfleur, Benjamin Mörs, Thomas Unverfärth, Jan Liu, Feng Läufer, Andreas Castillo, Paula Oh, Changhwan Park, Tae-Yoon S. Woo, Jusun Crispini, Laura Woo, Jusun 2021-03-02 https://hdl.handle.net/10371/197852 https://doi.org/10.1144/jgs2020-062 영어 unknown Geological Society of London Journal of the Geological Society, Vol.178 No.1, p. jgs2020-062 0016-7649 https://hdl.handle.net/10371/197852 doi:10.1144/jgs2020-062 000583905600001 2-s2.0-85100488724 124263 CENTRAL TRANSANTARCTIC MOUNTAINS BRAIDED RIVER DEPOSIT BEACON SUPERGROUP TRIASSIC BOUNDARY AGE CONSTRAINTS ASSEMBLAGES STRATIGRAPHY GONDWANA FOSSILS GEOLOGY Article ART 2021 ftseoulnuniv https://doi.org/10.1144/jgs2020-062 2023-12-15T01:39:44Z © 2020 The Author(s). Published by The Geological Society of London. All rights reserved.The remote lower reaches of the Rennick Glacier in the far north of Victoria Land hold some of the least-explored outcrop areas of the Transantarctic basin system. Following recent international field-work efforts in the Helliwell Hills, we here provide a comprehensive emendation to the regional stratigraphy. Results of geological and palaeontological reconnaissance and of petrographic, geochemical and palynostratigraphic analyses reveal a stack of three previously unknown sedimentary units in the study area: the Lower Triassic Van der Hoeven Formation (new unit, 115+ m thick) consists mainly of quartzose sandstone and non-carbonaceous mudstone rich in continental trace fossils. The Middle to Upper Triassic Helliwell Formation (new unit, 235 m thick) consists of coal-bearing overbank deposits and volcaniclastic sandstone and yielded typical plant fossils of the Gondwanan Dicroidium flora together with plant-bearing silicified peat. The succession is capped by c. 14 m of the sandstone-dominated Section Peak Formation (uppermost Triassic–Lower Jurassic). Our results enable more detailed correlation of the Palaeozoic–Mesozoic successions throughout East Antarctica and into Tasmania. Of particular interest is one section that spans the end-Permian mass extinction interval, which promises to allow detailed reconstructions of high-latitude vegetation dynamics across this critical interval in Earth history. N 1 Article in Journal/Newspaper Antarc* Antarctica East Antarctica Rennick Glacier Victoria Land Seoul National University: S-Space East Antarctica Victoria Land Transantarctic Mountains Rennick ENVELOPE(161.500,161.500,-72.000,-72.000) Rennick Glacier ENVELOPE(160.750,160.750,-70.500,-70.500) Section Peak ENVELOPE(161.917,161.917,-73.233,-73.233) Van der Hoeven ENVELOPE(161.417,161.417,-71.900,-71.900) Helliwell Hills ENVELOPE(161.200,161.200,-71.833,-71.833) Journal of the Geological Society 178 1 |
institution |
Open Polar |
collection |
Seoul National University: S-Space |
op_collection_id |
ftseoulnuniv |
language |
unknown |
topic |
CENTRAL TRANSANTARCTIC MOUNTAINS BRAIDED RIVER DEPOSIT BEACON SUPERGROUP TRIASSIC BOUNDARY AGE CONSTRAINTS ASSEMBLAGES STRATIGRAPHY GONDWANA FOSSILS GEOLOGY |
spellingShingle |
CENTRAL TRANSANTARCTIC MOUNTAINS BRAIDED RIVER DEPOSIT BEACON SUPERGROUP TRIASSIC BOUNDARY AGE CONSTRAINTS ASSEMBLAGES STRATIGRAPHY GONDWANA FOSSILS GEOLOGY Bomfleur, Benjamin Mörs, Thomas Unverfärth, Jan Liu, Feng Läufer, Andreas Castillo, Paula Oh, Changhwan Park, Tae-Yoon S. Woo, Jusun Crispini, Laura Uncharted permian to jurassic continental deposits in the far north of victoria land, east antarctica |
topic_facet |
CENTRAL TRANSANTARCTIC MOUNTAINS BRAIDED RIVER DEPOSIT BEACON SUPERGROUP TRIASSIC BOUNDARY AGE CONSTRAINTS ASSEMBLAGES STRATIGRAPHY GONDWANA FOSSILS GEOLOGY |
description |
© 2020 The Author(s). Published by The Geological Society of London. All rights reserved.The remote lower reaches of the Rennick Glacier in the far north of Victoria Land hold some of the least-explored outcrop areas of the Transantarctic basin system. Following recent international field-work efforts in the Helliwell Hills, we here provide a comprehensive emendation to the regional stratigraphy. Results of geological and palaeontological reconnaissance and of petrographic, geochemical and palynostratigraphic analyses reveal a stack of three previously unknown sedimentary units in the study area: the Lower Triassic Van der Hoeven Formation (new unit, 115+ m thick) consists mainly of quartzose sandstone and non-carbonaceous mudstone rich in continental trace fossils. The Middle to Upper Triassic Helliwell Formation (new unit, 235 m thick) consists of coal-bearing overbank deposits and volcaniclastic sandstone and yielded typical plant fossils of the Gondwanan Dicroidium flora together with plant-bearing silicified peat. The succession is capped by c. 14 m of the sandstone-dominated Section Peak Formation (uppermost Triassic–Lower Jurassic). Our results enable more detailed correlation of the Palaeozoic–Mesozoic successions throughout East Antarctica and into Tasmania. Of particular interest is one section that spans the end-Permian mass extinction interval, which promises to allow detailed reconstructions of high-latitude vegetation dynamics across this critical interval in Earth history. N 1 |
author2 |
Woo, Jusun |
format |
Article in Journal/Newspaper |
author |
Bomfleur, Benjamin Mörs, Thomas Unverfärth, Jan Liu, Feng Läufer, Andreas Castillo, Paula Oh, Changhwan Park, Tae-Yoon S. Woo, Jusun Crispini, Laura |
author_facet |
Bomfleur, Benjamin Mörs, Thomas Unverfärth, Jan Liu, Feng Läufer, Andreas Castillo, Paula Oh, Changhwan Park, Tae-Yoon S. Woo, Jusun Crispini, Laura |
author_sort |
Bomfleur, Benjamin |
title |
Uncharted permian to jurassic continental deposits in the far north of victoria land, east antarctica |
title_short |
Uncharted permian to jurassic continental deposits in the far north of victoria land, east antarctica |
title_full |
Uncharted permian to jurassic continental deposits in the far north of victoria land, east antarctica |
title_fullStr |
Uncharted permian to jurassic continental deposits in the far north of victoria land, east antarctica |
title_full_unstemmed |
Uncharted permian to jurassic continental deposits in the far north of victoria land, east antarctica |
title_sort |
uncharted permian to jurassic continental deposits in the far north of victoria land, east antarctica |
publisher |
Geological Society of London |
publishDate |
2021 |
url |
https://hdl.handle.net/10371/197852 https://doi.org/10.1144/jgs2020-062 |
long_lat |
ENVELOPE(161.500,161.500,-72.000,-72.000) ENVELOPE(160.750,160.750,-70.500,-70.500) ENVELOPE(161.917,161.917,-73.233,-73.233) ENVELOPE(161.417,161.417,-71.900,-71.900) ENVELOPE(161.200,161.200,-71.833,-71.833) |
geographic |
East Antarctica Victoria Land Transantarctic Mountains Rennick Rennick Glacier Section Peak Van der Hoeven Helliwell Hills |
geographic_facet |
East Antarctica Victoria Land Transantarctic Mountains Rennick Rennick Glacier Section Peak Van der Hoeven Helliwell Hills |
genre |
Antarc* Antarctica East Antarctica Rennick Glacier Victoria Land |
genre_facet |
Antarc* Antarctica East Antarctica Rennick Glacier Victoria Land |
op_relation |
Journal of the Geological Society, Vol.178 No.1, p. jgs2020-062 0016-7649 https://hdl.handle.net/10371/197852 doi:10.1144/jgs2020-062 000583905600001 2-s2.0-85100488724 124263 |
op_doi |
https://doi.org/10.1144/jgs2020-062 |
container_title |
Journal of the Geological Society |
container_volume |
178 |
container_issue |
1 |
_version_ |
1788057338893041664 |