Uncharted Permian to Jurassic continental deposits in the far north of Victoria Land, East Antarctica
open 10 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 regi...
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ftunivgenova:oai:iris.unige.it:11567/1020776 2023-05-15T13:40:45+02:00 Uncharted Permian to Jurassic continental deposits in the far north of Victoria Land, East Antarctica DEU KOR SWE TWN 100022 - Dipartimento di Scienze della terra, dell'ambiente e della vita 557 2020-09-30T14:09:07Z application/pdf http://hdl.handle.net/11567/1020776 https://doi.org/10.1144/jgs2020-062 eng eng GBR Geological Society of London jgs2020-062 ELETTRONICO 178 (1) crossref 2-s2.0-85100488724 http://hdl.handle.net/11567/1020776 doi:10.1144/jgs2020-062 WOS:000583905600001 01- Contributo su rivista::01.01 - Articolo su rivista internazionale Esperti anonimi si 262 info:eu-repo/semantics/article 2020 ftunivgenova https://doi.org/10.1144/jgs2020-062 2022-08-18T21:15:33Z open 10 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. open Bomfleur, Benjamin; Mörs, Thomas; Unverfärth, Jan; Liu, Feng; Läufer, Andreas; Castillo, Paula; Oh, Changhwan; Park, Tae-Yoon S.; Woo, Jusun; Crispini, Laura Bomfleur, Benjamin; Mörs, Thomas; Unverfärth, Jan; Liu, Feng; Läufer, Andreas; Castillo, Paula; Oh, Changhwan; Park, Tae-Yoon S.; Woo, Jusun; Crispini, Laura Article in Journal/Newspaper Antarc* Antarctica East Antarctica Rennick Glacier Victoria Land Università degli Studi di Genova: CINECA IRIS East Antarctica Victoria Land Andreas ENVELOPE(-60.729,-60.729,-64.008,-64.008) 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 jgs2020-062 |
institution |
Open Polar |
collection |
Università degli Studi di Genova: CINECA IRIS |
op_collection_id |
ftunivgenova |
language |
English |
description |
open 10 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. open Bomfleur, Benjamin; Mörs, Thomas; Unverfärth, Jan; Liu, Feng; Läufer, Andreas; Castillo, Paula; Oh, Changhwan; Park, Tae-Yoon S.; Woo, Jusun; Crispini, Laura Bomfleur, Benjamin; Mörs, Thomas; Unverfärth, Jan; Liu, Feng; Läufer, Andreas; Castillo, Paula; Oh, Changhwan; Park, Tae-Yoon S.; Woo, Jusun; Crispini, Laura |
author2 |
DEU KOR SWE TWN 100022 - Dipartimento di Scienze della terra, dell'ambiente e della vita 557 |
format |
Article in Journal/Newspaper |
title |
Uncharted Permian to Jurassic continental deposits in the far north of Victoria Land, East Antarctica |
spellingShingle |
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 |
GBR |
publishDate |
2020 |
url |
http://hdl.handle.net/11567/1020776 https://doi.org/10.1144/jgs2020-062 |
long_lat |
ENVELOPE(-60.729,-60.729,-64.008,-64.008) 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 Andreas Rennick Rennick Glacier Section Peak Van der Hoeven Helliwell Hills |
geographic_facet |
East Antarctica Victoria Land Andreas 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 |
jgs2020-062 ELETTRONICO 178 (1) crossref 2-s2.0-85100488724 http://hdl.handle.net/11567/1020776 doi:10.1144/jgs2020-062 WOS:000583905600001 |
op_doi |
https://doi.org/10.1144/jgs2020-062 |
container_title |
Journal of the Geological Society |
container_volume |
178 |
container_issue |
1 |
container_start_page |
jgs2020-062 |
_version_ |
1766139307594088448 |