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 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. 10.1017/S0954102000000249Full text not available from this repository.
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.
|Item Type:||Publication - Article|
|Digital Object Identifier (DOI):||10.1017/S0954102000000249|
|Programmes:||BAS Programmes > Pre 2000 programme|
|Additional Keywords:||Antarctica, Jurassic, macroflora, South Orkney Islands|
|NORA Subject Terms:||Botany|
|Date made live:||16 Nov 2012 09:51|
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