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(Article of periodic en Anglais - 2010)

Document title

The geomorphology and evolution of a large barrier spit : Farewell Spit, New Zealand

Authors(s) and Affiliation(s)

TRIBE H.M. (1) ; KENNEDY D.M. (1) ;
(1) School of Geography, Environment and Earth Sciences, Victoria Univ., Wellington, NOUVELLE-ZELANDE

Abstract

Farewell Spit runs along South Island, New Zealand. The spit is composed of barchan dunes, sand sheets and vegetated linear dunes. Analysis of aerial photography indicates a rapid colonization of the spit by vegetation which has expanded in area by 75% since 1950. Vegetation colonization preferentially occurs on the southern side of the spit. Sand sourced from longshore drift appears to be the primary source of beach sediment. Occasional cyclone events cause erosion, but this is balanced by aeolian sediment transport. It would appear that extension of the subaerial portion of the spit is related to the development of shells banks at its downdrift end which are periodically welded to the main spit by dune extension. Farewell Spit therefore provides an ideal example of a barrier environment where longshore sediment supply and aeolian transport dominates geomorphic evolution

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2010, vol. 35, no15 [pp. 1751-1762]

Bibliographic references : 38 ref.

Collation : 12 fig., 2 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.2009

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2011
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