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Uncharted Permian t...
Uncharted Permian to Jurassic continental deposits in the far north of Victoria Land, East Antarctica
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- Bomfleur, Benjamin (författare)
- Institute for Geology and Palaeontology, Westfälische Wilhelms-Universität Münster
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- Mörs, Thomas (författare)
- Naturhistoriska riksmuseet,Enheten för paleobiologi
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- Unverfärth, Jan (författare)
- Institute for Geology and Palaeontology, Westfälische Wilhelms-Universität Münster
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- Feng, Liu (författare)
- State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology
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- Läufer, Andreas (författare)
- Federal Institute for Geosciences and Natural Resources (BGR), Germany
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- Castillo, Paula (författare)
- Institute for Geology and Palaeontology, Westfälische Wilhelms-Universität Münster
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- Oh, Changhwan (författare)
- Department of Earth Sciences Education, Chungbuk National University, Republic of Korea
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- Park, Tae-Yoon, S. (författare)
- Division of Polar Earth-System Sciences, Korea Polar Research Institute, Republic of Korea
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- Woo, Jusun (författare)
- School of Earth and Environmental Sciences, Seoul National University, Republic of Korea
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- Crispini, Laura (författare)
- DISTAV, University of Genova
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(creator_code:org_t)
- 2020-10-23
- 2020
- Engelska.
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Ingår i: Journal of the Geological Society. - London : Geological Society of London. - 0016-7649 .- 2041-479X. ; 178
- Relaterad länk:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Annan geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Other Earth and Related Environmental Sciences (hsv//eng)
Nyckelord
- Transantarctic Mountains
- Triassic
- Dicroidium
- palynology
- Helliwell Hills
- The changing Earth
- Den föränderliga jorden
- Ecosystems and species history
- Ekosystem och arthistoria
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Bomfleur, Benjam ...
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Mörs, Thomas
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Unverfärth, Jan
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Feng, Liu
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Läufer, Andreas
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Castillo, Paula
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visa fler...
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Oh, Changhwan
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Park, Tae-Yoon, ...
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Woo, Jusun
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Crispini, Laura
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visa färre...
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- NATURVETENSKAP
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och Geovetenskap och ...
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Journal of the G ...
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Naturhistoriska riksmuseet