Vast quantities of material resulting from erosion are laid down, by glacial deposition, as a veneer of superficial
deposits covering the newly eroded land surface, influencing present day scenery, farming, land use and drainage
(including, perhaps, for your school/college playing fields)
Glaciers are
- cold
- rigid (though able to flow)
- able to fill the whole valley
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Glaciers are therefore able to carry vast quantities of material of all shapes and sizes.
Material carried by a glacier is
- unsorted
- unstratified
- angular
- striated
- smoothed
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When the glacier melts, this material is deposited and left where it is until transported further by:
- meltwater
- later river erosion.
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MATERIAL CARRIED ON THE ICE
lateral moraine
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medial moraine
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MATERIAL DEPOSITED BY THE ICE
till/drift
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terminal moraine
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drumlins
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erratics
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MATERIAL DEPOSITED BY THE ICE AND RE-WORKED BY MELTWATER
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outwash sand and gravel
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MATERIAL DEPOSITED BY MELT-WATER WITHIN THE ICE
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esker
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Geopix Study Topic "Glacial Deposition"
- gives a full image of each of these, and other, examples;
- describes the features of the main depositional landforms;
- explains how each landform is related to glacial processes;
- suggests how to answer exam questions on this topic.
The Study Topic contains the following pages:
'Glacial Deposition' is part of the Glaciation Guide CD.
To order this CD go to the Geopix Online Store