GEOG-2P05 - Drumlins - Science & Maths Assignment Help

Assignment Task

Drumlins
Drumlins are roughly ovoid-shaped hills of dominantly glacial debris that typically occur within groups or fields of several thousands. Drumlins exhibit very strong en-echelon long-axis preferred orientation paralleling the main direction of ice flow. The classical shaped drumlin usually has a steeper stoss end and a tapered lee-side, however variants on this shape are perhaps more common than the classical shape itself (Fig. 1) Drumlins may range in height from 5 to 200 m, in width from 10 to 100 m and in overall length from 100 m to several kilometres.
Drumlins are such striking landforms that for many years little cognizance was taken of their internal composition. Drumlins are composed of a vast range of sediment types of varied provenance, containing an array of sediment structures and forms. The question of drumlin formation has attracted a vast array of research work (Menzies, 1984: Menzies and Rose, 1987, 1989)
Any explanation of drumlin formation needs to account for: (1) the varied location of drumlins and their close association in fields; (2) the diverse shape and morphology of drumlin form: (3) the enormous range in sediment type and structures within drumlins; (4) the existence of rock-cored and non-rock-cored drumlins, often in proximity to each other; (5) the presence of drumlins in bedform continua in some but not all cases; (6) the relationship of drumlins to subglacial glaciodynamics and hydraulics; (7) the chronology of drumlin formation whether drumlins form simultaneously as a single field or develop into a field by repeated ‘overprinting’ in a single glacial phase or repetition over several glacial phases; (8) stages of drumlin development whether formed en masse or by gradual accretion in a single continuous event or interrupted accretionary events; and finally, (9) a ‘trigger’ mechanism(s) needs to be found that is operative in certain specific conditions yet not under others.

This GEOG-2P05 - Science & Maths Assignment has been solved by our Science & Maths experts at My Uni Paper. Our Assignment Writing Experts are efficient to provide a fresh solution to this question. We are serving more than 10000+ Students in Australia, UK & US by helping them to score HD in their academics. Our Experts are well trained to follow all marking rubrics & referencing style.