Journal article
Plate boundary tectonics and oceanic island geomorphology
Zeitschrift fur Geomorphologie, Vol.69, pp.39-53
1988
Abstract
Shoreline displacements along a remnant island arc in the southwest Pacific - the Lau-Colville ridge - show it has been uplifted during the late Cenozoic, not subsided as expected. This is possibly the result of the heating-up of a detached lithospheric slab beneath the ridge, or may testify to its collision with the Vanua Levu platform to the north. The potential for understanding the nature of lithospheric flexure close to ocean trenches is illustrated by analysis of the tectonic history of Christmas Island in the northeast Indian Ocean. Formation of rift-zones was probably caused by initial uplift, its later intermittent character - perhaps as it rose to the crest of the flexure - being signalled by a fossil reef series. Preliminary analysis of likely shoreline displacement on South Atlantic islands suggests that major uplift occurs after and as an indirect result of volcanic extinction, but more data are needed to test this hypothesis adequately. -from Author
Details
- Title
- Plate boundary tectonics and oceanic island geomorphology
- Authors
- Patrick Nunn (Author)
- Publication details
- Zeitschrift fur Geomorphologie, Vol.69, pp.39-53
- Publisher
- Gebrueder Borntraeger Verlagsbuchhandlung
- Date published
- 1988
- ISSN
- 0044-2798
- Organisation Unit
- Indigenous and Transcultural Research Centre; Australian Centre for Pacific Islands Research; School of Social Sciences - Legacy; University of the Sunshine Coast, Queensland; School of Law and Society; Sustainability Research Cluster
- Language
- English
- Record Identifier
- 99451036802621
- Output Type
- Journal article
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