Abstract
A 1:30,000 scale map of the snout and proglacial landscape of the surging Icelandic glacier Tungnaarjokull, based upon aerial photography from 1995, immediately after a surge, allows an assessment of the spatial variability in landform-sediment imprints of catastrophic glacier advance across upland bedrock ridges. The ice-margin parallel alignment of the bedrock ridges locally strongly directs proglacial meltwater drainage and initiates strong compression in the ice during surging, resulting in the development of prominent ice-cored hummocky moraine composed of glacifluvial sediment. Diagnostic surge landforms elsewhere on the foreland include thrust block and push moraines, overridden ice-cored thrust block moraines, crevasse squeeze ridges, long flutings, hummocky moraine and ice-cored, pitted outwash.
| Original language | English |
|---|---|
| Pages (from-to) | 134-151 |
| Number of pages | 18 |
| Journal | Journal of Maps |
| Volume | 5 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2009 |
Keywords
- Bruarjokull
- geomorphology
- landform