Hostname: page-component-78c5997874-t5tsf Total loading time: 0 Render date: 2024-11-11T07:40:18.931Z Has data issue: false hasContentIssue false
  • English
  • Français

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

Published online by Cambridge University Press:  06 May 2004

Simon A. Lomas  and
Richard V. Dingle
Simon A. Lomas
Affiliation:
British Antarctic Survey, Natural Environment Research Council, High Cross, Madingley Road, Cambridge CB3 0ET, UK Department of Geology & Petroleum Geology, University of Aberdeen, Aberdeen AB24 3UE, UK
Richard V. Dingle
Affiliation:
British Antarctic Survey, Natural Environment Research Council, High Cross, Madingley Road, Cambridge CB3 0ET, UK Geological Institute, University of Copenhagen, Øster Voldgade 10, DK-1350 Copenhagen K, Denmark
Get access Rights & Permissions [Opens in a new window]

Abstract

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.

Keywords

Larsen BasinMaastrichtianMarambio Groupoff-axis volcanism
Type
Papers—Earth Sciences and Glaciology
Information
Antarctic Science , Volume 11 , Issue 3 , September 1999 , pp. 332 - 337
Copyright
© Antarctic Science Ltd 1999

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)