Formation of the Waiho Loop terminal moraine, New Zealand

Alexander, David, Davies, Timothy and Shulmeister, James (2014) Formation of the Waiho Loop terminal moraine, New Zealand. Journal of Quaternary Science, 29 4: 361-369. doi:10.1002/jqs.2707


Author Alexander, David
Davies, Timothy
Shulmeister, James
Title Formation of the Waiho Loop terminal moraine, New Zealand
Journal name Journal of Quaternary Science   Check publisher's open access policy
ISSN 1099-1417
0267-8179
Publication date 2014-05
Year available 2014
Sub-type Article (original research)
DOI 10.1002/jqs.2707
Open Access Status
Volume 29
Issue 4
Start page 361
End page 369
Total pages 9
Place of publication Chichester, West Sussex United Kingdom
Publisher John Wiley & Sons
Collection year 2015
Language eng
Abstract We present an analysis of the formation and evolution of the Waiho Loop terminal moraine. Recent work has shown that the Loop comprises mainly rock avalanche material, and suggested its formation was associated with a rock-avalanche-driven glacier advance. New evidence from shallow seismic studies between the range front and the Loop suggests (i) that the presence of a basal trough critically influences glacier behaviour and moraine formation; and (ii) that the volume of the Waiho Loop is significantly greater than previously thought. A one-dimensional dynamic ice flow model is used to test two rock-avalanche-based scenarios for the formation of the Loop: first, that a rock avalanche caused a significant advance of the glacier terminus from a location within the confined mountain valley to the Loop; and second, that the rock avalanche occurred while the glacier was retreating with its terminus close to the position of the Loop. It is shown that this terminal moraine was not the result of a glacier advance.
Keyword Debris covered glacier
Franz Josef Glacier
Numerical modelling
Overdeepened trough
Rock avalanche debris
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Geography, Planning and Environmental Management Publications
Official 2015 Collection
 
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