Turf-banked terraces in Öraefi,southeast Iceland: Morphometry, rates of movement, and environmental controls

Small-scale turf-banked terraces are widely developed on low- angled slopes above the Neoglacial trimlines of the Oraefi outlet glaciers in southeast Iceland. These features, which have not been previously described in this area, comprise a vegetated riser and a vegetation-free tread. The morphometr...

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Bibliographic Details
Main Authors: Douglas, Terry, Harrison, Stephan
Format: Article in Journal/Newspaper
Language:unknown
Published: University of Colorado 1996
Subjects:
Online Access:https://nrl.northumbria.ac.uk/id/eprint/18797/
Description
Summary:Small-scale turf-banked terraces are widely developed on low- angled slopes above the Neoglacial trimlines of the Oraefi outlet glaciers in southeast Iceland. These features, which have not been previously described in this area, comprise a vegetated riser and a vegetation-free tread. The morphometry of these landforms is shown to be related to slope angle. Rates of soil movement were measured over a 2-yr period using Rudberg pillars and showed maximum displacement of the surface layer of 11 mm yr-1. The environmental controls on the development of the turf-banked terraces are discussed including aspect, slope angle and altitude.