Glaciation Keywords

  • Created by: Melissa
  • Created on: 02-01-10 12:20

Ablation = the process of wastage of snow or ice, especially by melting.

Accumulation = the net gain in ice mass. The sources of accumulation are direct snowfall and avalanching from higher slopes.

Extensional Flow = this is the extension and related thinning of glacier ice in those zones where velocity increases.

Compressional Flow= this is the type of glacier flow whereby a reduction in velocity leads to an increase in thickness of a glacier.

Glacial = a period of time when masses of ice develop and advance into lower altitudes due to a sustained decline in temperature. Extensive continental ice sheets form during such


Anisa Akhtar


Good Definations ***

Mr A Gibson


Read, learn and revise. Then come back and complete the "Test Yourself" activity - really useful quick check of meanings. definitions are good.