A new macroflora from the South Orkney Islands, Antarctica: evidence of an Early to Middle Jurassic age for the Powell Island Conglomerate

A macroflora from John Peaks, Powell Island, contains Sagenopteris nilssoniana, Cladophlebis oblonga, Brachyphyllum sp., Elatocladus confertus, and Sphenopteris sp. The macroflora is best correlated with the Botany Bay Group flora, suggesting an Early to Middle Jurassic age for the Powell Island Con...

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Bibliographic Details
Published in:Antarctic Science
Main Author: Cantrill, David J.
Format: Article in Journal/Newspaper
Language:unknown
Published: Cambridge University Press 2000
Subjects:
Botany
Antarctic
The Antarctic
Antarctic Peninsula
South Orkney Islands
Botany Bay
Powell Island
John Peaks
Antarc*
Antarctic Science
Antarctica
Online Access:http://nora.nerc.ac.uk/id/eprint/20428/
https://doi.org/10.1017/S0954102000000249
id ftnerc:oai:nora.nerc.ac.uk:20428
record_format openpolar
spelling ftnerc:oai:nora.nerc.ac.uk:20428 2023-05-15T13:45:12+02:00 A new macroflora from the South Orkney Islands, Antarctica: evidence of an Early to Middle Jurassic age for the Powell Island Conglomerate Cantrill, David J. 2000 http://nora.nerc.ac.uk/id/eprint/20428/ https://doi.org/10.1017/S0954102000000249 unknown Cambridge University Press Cantrill, David J. 2000 A new macroflora from the South Orkney Islands, Antarctica: evidence of an Early to Middle Jurassic age for the Powell Island Conglomerate. Antarctic Science, 12 (2). 185-195. https://doi.org/10.1017/S0954102000000249 <https://doi.org/10.1017/S0954102000000249> Botany Publication - Article PeerReviewed 2000 ftnerc https://doi.org/10.1017/S0954102000000249 2023-02-04T19:32:51Z A macroflora from John Peaks, Powell Island, contains Sagenopteris nilssoniana, Cladophlebis oblonga, Brachyphyllum sp., Elatocladus confertus, and Sphenopteris sp. The macroflora is best correlated with the Botany Bay Group flora, suggesting an Early to Middle Jurassic age for the Powell Island Conglomerate. This age supports new interpretations for the geological evolution of the Antarctic Peninsula that suggest the initial phase of Gondwana break-up was manifested as small rift grabens with continental deposits. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica Powell Island South Orkney Islands Natural Environment Research Council: NERC Open Research Archive Antarctic The Antarctic Antarctic Peninsula South Orkney Islands ENVELOPE(-45.500,-45.500,-60.583,-60.583) Botany Bay ENVELOPE(-57.892,-57.892,-63.678,-63.678) Powell Island ENVELOPE(-45.050,-45.050,-60.700,-60.700) John Peaks ENVELOPE(-45.500,-45.500,-60.717,-60.717) Antarctic Science 12 2 185 195
institution Open Polar
collection Natural Environment Research Council: NERC Open Research Archive
op_collection_id ftnerc
language unknown
topic Botany
spellingShingle Botany
Cantrill, David J.
A new macroflora from the South Orkney Islands, Antarctica: evidence of an Early to Middle Jurassic age for the Powell Island Conglomerate
topic_facet Botany
description A macroflora from John Peaks, Powell Island, contains Sagenopteris nilssoniana, Cladophlebis oblonga, Brachyphyllum sp., Elatocladus confertus, and Sphenopteris sp. The macroflora is best correlated with the Botany Bay Group flora, suggesting an Early to Middle Jurassic age for the Powell Island Conglomerate. This age supports new interpretations for the geological evolution of the Antarctic Peninsula that suggest the initial phase of Gondwana break-up was manifested as small rift grabens with continental deposits.
format Article in Journal/Newspaper
author Cantrill, David J.
author_facet Cantrill, David J.
author_sort Cantrill, David J.
title A new macroflora from the South Orkney Islands, Antarctica: evidence of an Early to Middle Jurassic age for the Powell Island Conglomerate
title_short A new macroflora from the South Orkney Islands, Antarctica: evidence of an Early to Middle Jurassic age for the Powell Island Conglomerate
title_full A new macroflora from the South Orkney Islands, Antarctica: evidence of an Early to Middle Jurassic age for the Powell Island Conglomerate
title_fullStr A new macroflora from the South Orkney Islands, Antarctica: evidence of an Early to Middle Jurassic age for the Powell Island Conglomerate
title_full_unstemmed A new macroflora from the South Orkney Islands, Antarctica: evidence of an Early to Middle Jurassic age for the Powell Island Conglomerate
title_sort new macroflora from the south orkney islands, antarctica: evidence of an early to middle jurassic age for the powell island conglomerate
publisher Cambridge University Press
publishDate 2000
url http://nora.nerc.ac.uk/id/eprint/20428/
https://doi.org/10.1017/S0954102000000249
long_lat ENVELOPE(-45.500,-45.500,-60.583,-60.583)
ENVELOPE(-57.892,-57.892,-63.678,-63.678)
ENVELOPE(-45.050,-45.050,-60.700,-60.700)
ENVELOPE(-45.500,-45.500,-60.717,-60.717)
geographic Antarctic
The Antarctic
Antarctic Peninsula
South Orkney Islands
Botany Bay
Powell Island
John Peaks
geographic_facet Antarctic
The Antarctic
Antarctic Peninsula
South Orkney Islands
Botany Bay
Powell Island
John Peaks
genre Antarc*
Antarctic
Antarctic Peninsula
Antarctic Science
Antarctica
Powell Island
South Orkney Islands
genre_facet Antarc*
Antarctic
Antarctic Peninsula
Antarctic Science
Antarctica
Powell Island
South Orkney Islands
op_relation Cantrill, David J. 2000 A new macroflora from the South Orkney Islands, Antarctica: evidence of an Early to Middle Jurassic age for the Powell Island Conglomerate. Antarctic Science, 12 (2). 185-195. https://doi.org/10.1017/S0954102000000249 <https://doi.org/10.1017/S0954102000000249>
op_doi https://doi.org/10.1017/S0954102000000249
container_title Antarctic Science
container_volume 12
container_issue 2
container_start_page 185
op_container_end_page 195
_version_ 1766217111962648576

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