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Latest Jurassic-earliest Cretaceous age for a fossil flora from the Latady Basin, Antarctic Peninsula

Hunter, Morag A.; Cantrill, David J.; Flowerdew, Michael J.. 2006 Latest Jurassic-earliest Cretaceous age for a fossil flora from the Latady Basin, Antarctic Peninsula. Antarctic Science, 18 (2). 261-264. 10.1017/S0954102006000290

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Abstract/Summary

Dating Jurassic terrestrial floras in the Antarctic Peninsula has proved problematic and controversial. Here U–Pb series dating on detrital zircons from a conglomerate interbedded with fossil plant material provide a maximal depositional age of 144 ± 3 Ma for a presumed Jurassic flora. This is the first confirmed latest Jurassic-earliest Cretaceous flora from the Latady Basin, and represents some of the youngest sedimentation in this basin. The presence of terrestrial sedimentation at Cantrill Nunataks suggests emergence of the arc closer to the Latady Basin margin in the south compared to Larsen Basin in the north, probably as a result of the failure of the southern Weddell Sea to undergo rifting.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1017/S0954102006000290
Programmes: BAS Programmes > Antarctic Science in the Global Context (2000-2005) > Antarctica in the Dynamic Global Plate System
ISSN: 0954-1020
Additional Information. Not used in RCUK Gateway to Research.: Full text not available from this repository
Additional Keywords: Stratigraphy ; Sedimentary rocks ; Biostratigraphy ; Palaeobotany ; U-Pb dating
NORA Subject Terms: Earth Sciences
Date made live: 31 Aug 2007 12:59
URI: http://nora.nerc.ac.uk/id/eprint/67

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