Skip to main content
Article thumbnail
Location of Repository

Life of the Bellingshausen plate

By Graeme Eagles, Karsten Gohl and Robert D. Larter

Abstract

The onset of independent Bellingshausen plate movement in the South Pacific is estimated at just after chron C33o. This event closely follows a change in the offset sense on the transform arm of the Late Cretaceous Pacific-Phoenix-Antarctic triple junction and accompanies the creation and/or lengthening, by different mechanisms, of long-offsets on the Pacific-Antarctic ridge at the Udintsev, Tharp, Heezen and V transforms, as the triple junction stepped away from the ridge. At around chron C27, the Bellingshausen plate ceased to move independently and the Pacific-Antarctic ridge inherited the set of long offset transforms. Shortly afterwards, the gravity fabric on the flanks of much of the ridge displays evidence for a spreading rate decrease possibly related to transpression on the long-offset transforms. We speculate on a link between these events and regional tectonic changes around chron C27

Topics: Earth Sciences
Publisher: American Geophysical Union
Year: 2004
DOI identifier: 10.1029/2003GL019127
OAI identifier: oai:nora.nerc.ac.uk:12154
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://www.agu.org/journals/gl... (external link)
  • https://doi.org/10.1029/2003GL... (external link)
  • https://doi.org/10.1029/2003GL... (external link)
  • http://nora.nerc.ac.uk/id/epri... (external link)
  • http://nora.nerc.ac.uk/id/epri... (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.