Fláajökull (north lobe), Iceland: active temperate piedmont lobe glacial landsystem

Evans, D.J.A.; Ewertowski, M.; Orton, C.

Abstract

A 1:6250 map of the foreland of Fláajökull's north lobe as it appeared in 1989, together with a 1:350 scale map of a sample area of recently exposed glacial landforms from 2014, enables an assessment of the spatial and temporal evolution of glacial landform assemblages at the margin of an active temperate piedmont lobe terminating at ice-marginal thickening till wedges. The pattern of landform development captured in these maps indicates that the glacier margin developed strong longitudinal crevassing and well-developed ice-marginal pecten (three-dimensional crenulations) during its historical recession. This is recorded by early recessional phase linear push moraines on well-drained distal slopes of the foreland and the later development of interrelated sawtooth moraines, crevasse squeeze ridges and till eskers, indicative of extending ice flow and poorly drained submarginal conditions. This landform record is a palaeoglaciological signature of a changing process–form regime inherent within the active temperate piedmont lobe landsystem model.

Citation

Evans, D., Ewertowski, M., & Orton, C. (2016). Fláajökull (north lobe), Iceland: active temperate piedmont lobe glacial landsystem. Journal of Maps, 12(5), 777-789. https://doi.org/10.1080/17445647.2015.1073185

• Journal Article Type: Article
• Acceptance Date: Jul 13, 2015
• Online Publication Date: Aug 13, 2015
• Publication Date: Oct 19, 2016
• Deposit Date: Aug 27, 2015
• Publicly Available Date: Aug 13, 2016
• Journal: Journal of Maps
• Electronic ISSN: 1744-5647
• Publisher: Taylor and Francis Group
• Peer Reviewed: Peer Reviewed
• Volume: 12
• Issue: 5
• Pages: 777-789
• DOI: https://doi.org/10.1080/17445647.2015.1073185
• Keywords: Glacial landsystem, Active temperate glacier, Iceland.
• Public URL: https://durham-repository.worktribe.com/output/1432689