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Possible evidence for Late Cretaceous off-axis volcanism in the outer James Ross Basin

Lomas, Simon A.; Dingle, Richard V.. 1999 Possible evidence for Late Cretaceous off-axis volcanism in the outer James Ross Basin. Antarctic Science, 11 (03). 332-337. 10.1017/S0954102099000425

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Abstract/Summary

A prominent volcaniclastic channel sandstone deposited by a landward-flowing sediment gravity flow is described from the Maastrichtian of Snow Hill Island in the northern Larsen Basin. The characteristics of this petrographically distinct event deposit appear to indicate a volcanic source to the east of Snow Hill Island, well away from the magmatic arc landmass which sourced the bulk of the Larsen Basin fill, suggesting minor off-axis intrabasinal volcanism in Maastrichtian to Paleogene times.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1017/S0954102099000425
Programmes: BAS Programmes > Pre 2000 programme
ISSN: 0954-1020
Additional Keywords: Larsen Basin, Maastrichtian, Marambio Group, off-axis volcanism
Date made live: 21 Oct 2013 10:13 +0 (UTC)
URI: http://nora.nerc.ac.uk/id/eprint/503577

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