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engineer abdur rehman

Wednesday, 16 January 2019

How Do Glaciers Move?


How Do Glaciers Move?

Ice Flow Due To:

                            1) Basal Sliding - Due To Base Of Glacier Being Wet



Ice Flow Due To:

                               2) Creep (Plastic Flow) - Due To Gravity




ice flow due to:

                       3)  crevasses



Patterns of flow

  •             valley glaciers vs. continental glaciers

  1.  valley glaciers



  • continental glaciers



How Do Glaciers Move Sediments?

             Very Different From Any Other Type Of Sediment Movement

                1.            No Differentiation Of Size Of Material
                                I.             Boulders To Rock Flour
                2.            When Material Is Deposited It Is Unsorted And Unstratified
                3.            Glacial Drift: Any Material That Is Deposited By Glaciers
                                i.              till
                                ii.             stratified drift



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