GG282 Final: GG 282 - Geomorphology Exam Notes
Document Summary
Moraines: end or terminal moraines, hummocky ground moraine (disintegration moraine, rogen moraine (ribbed moraine, kame moraine, other types (not considering in this course) Ground moraine (till plain) is not a ridge, it is an area of low relief comprised of glacial till] End moraines: moraine ridge that is deposited at the ice margin, terminal moraine, recessional moraine, composed of material that accumulated across the termini of actively moving ice. Process: margin of an active glacier. Sediments (mostly till) transported to margin and deposited. Hummocky ground moraine (disintegration moraine: wide belt of rolling to hummocky terrain with numerous wales (kettles) and mounds (kames, comprised of till, ice contact and glaciofluvial materials. Process of formation: ice margin, debris to surface, supraglacial sediment accumulates, meltwater mobilizes flow tills and produces glaciofluvial deposits, ice melts out, depressions and mounds develop. Rogen moraine: discontinuous ridges, transverse to the direction of ice flow, crescentic shape, materials include glacial tills and glaciofluvial sediments.
