Revised stratigraphy of the Permian Bainmedart Coal Measures, northern Prince Charles Mountains, East Antarctica
The Bainmedart Coal Measures constitute the middle portion of the Permian–Triassic Amery Group, which represents the only substantial Palaeozoic–Mesozoic sedimentary succession exposed in eastern Antarctica outside the Transantarctic Mountains. The coal measures disconformably or unconformably overl...
Published in: | Geological Magazine |
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Language: | English |
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Cambridge University Press (CUP)
1997
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Online Access: | http://dx.doi.org/10.1017/s0016756897006870 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0016756897006870 |
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crcambridgeupr:10.1017/s0016756897006870 2024-09-15T17:48:38+00:00 Revised stratigraphy of the Permian Bainmedart Coal Measures, northern Prince Charles Mountains, East Antarctica MCLOUGHLIN, STEPHEN DRINNAN, ANDREW N. 1997 http://dx.doi.org/10.1017/s0016756897006870 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0016756897006870 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Geological Magazine volume 134, issue 3, page 335-353 ISSN 0016-7568 1469-5081 journal-article 1997 crcambridgeupr https://doi.org/10.1017/s0016756897006870 2024-07-31T04:03:51Z The Bainmedart Coal Measures constitute the middle portion of the Permian–Triassic Amery Group, which represents the only substantial Palaeozoic–Mesozoic sedimentary succession exposed in eastern Antarctica outside the Transantarctic Mountains. The coal measures disconformably or unconformably overlie alluvial fan deposits of the Radok Conglomerate and are conformably overlain by the dominantly fluviatile Flagstone Bench Formation. The coal measures were deposited within alluvial settings dominated by north to northeasterly flowing, low-sinuosity rivers chiefly confined to broad, fault-bounded, valleys of the Lambert Graben, a major late Palaeozoic to early Mesozoic failed rift system. Both climatic and local tectonic factors are considered to have been the major influences on the pattern of coal measure sedimentation. Recent mapping has identified a much greater thickness of sediments within the coal measures than had been inferred previously. The Bainmedart Coal Measures are formally subdivided into six members. In ascending stratigraphic order these are: Dart Fields Conglomerate Member (<3 m thick), Toploje Member ( c . 300 m thick), Dragons Teeth Member (15–25 m thick), Glossopteris Gully Member ( c . 670 m thick), Grainger Member ( c . 350 m thick) and McKinnon Member ( c . 530 m thick). Article in Journal/Newspaper Antarc* Antarctica East Antarctica Prince Charles Mountains Cambridge University Press Geological Magazine 134 3 335 353 |
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Cambridge University Press |
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English |
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The Bainmedart Coal Measures constitute the middle portion of the Permian–Triassic Amery Group, which represents the only substantial Palaeozoic–Mesozoic sedimentary succession exposed in eastern Antarctica outside the Transantarctic Mountains. The coal measures disconformably or unconformably overlie alluvial fan deposits of the Radok Conglomerate and are conformably overlain by the dominantly fluviatile Flagstone Bench Formation. The coal measures were deposited within alluvial settings dominated by north to northeasterly flowing, low-sinuosity rivers chiefly confined to broad, fault-bounded, valleys of the Lambert Graben, a major late Palaeozoic to early Mesozoic failed rift system. Both climatic and local tectonic factors are considered to have been the major influences on the pattern of coal measure sedimentation. Recent mapping has identified a much greater thickness of sediments within the coal measures than had been inferred previously. The Bainmedart Coal Measures are formally subdivided into six members. In ascending stratigraphic order these are: Dart Fields Conglomerate Member (<3 m thick), Toploje Member ( c . 300 m thick), Dragons Teeth Member (15–25 m thick), Glossopteris Gully Member ( c . 670 m thick), Grainger Member ( c . 350 m thick) and McKinnon Member ( c . 530 m thick). |
format |
Article in Journal/Newspaper |
author |
MCLOUGHLIN, STEPHEN DRINNAN, ANDREW N. |
spellingShingle |
MCLOUGHLIN, STEPHEN DRINNAN, ANDREW N. Revised stratigraphy of the Permian Bainmedart Coal Measures, northern Prince Charles Mountains, East Antarctica |
author_facet |
MCLOUGHLIN, STEPHEN DRINNAN, ANDREW N. |
author_sort |
MCLOUGHLIN, STEPHEN |
title |
Revised stratigraphy of the Permian Bainmedart Coal Measures, northern Prince Charles Mountains, East Antarctica |
title_short |
Revised stratigraphy of the Permian Bainmedart Coal Measures, northern Prince Charles Mountains, East Antarctica |
title_full |
Revised stratigraphy of the Permian Bainmedart Coal Measures, northern Prince Charles Mountains, East Antarctica |
title_fullStr |
Revised stratigraphy of the Permian Bainmedart Coal Measures, northern Prince Charles Mountains, East Antarctica |
title_full_unstemmed |
Revised stratigraphy of the Permian Bainmedart Coal Measures, northern Prince Charles Mountains, East Antarctica |
title_sort |
revised stratigraphy of the permian bainmedart coal measures, northern prince charles mountains, east antarctica |
publisher |
Cambridge University Press (CUP) |
publishDate |
1997 |
url |
http://dx.doi.org/10.1017/s0016756897006870 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0016756897006870 |
genre |
Antarc* Antarctica East Antarctica Prince Charles Mountains |
genre_facet |
Antarc* Antarctica East Antarctica Prince Charles Mountains |
op_source |
Geological Magazine volume 134, issue 3, page 335-353 ISSN 0016-7568 1469-5081 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0016756897006870 |
container_title |
Geological Magazine |
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134 |
container_issue |
3 |
container_start_page |
335 |
op_container_end_page |
353 |
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1810290086748618752 |