Cold environments | |
The global distribution of cold environments – polar (land and marine based), alpine, glacial and periglacial. Glaciers as systems – glacial budgets and Ice movement - internal deformation, rotational, compressional, extensional and basal sliding; warm and cold based glaciers. Glacial processes and landscape development. Glacier Erosion and deposition landforms Fluvioglacial processes – the role of melt water erosion and deposition. Fluvioglacial landforms – melt water channels, kames, eskers and outwash plains. Periglacial processes – nivation, permafrost formation, frost heave, solifluction. Periglacial landforms – nivation hollows, ice wedges, patterned ground, pingos and solifluction lobes. |