58 THE PRINCIPLES OF SOIL MANAGEMENT 



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Fig 16. Section of glacial soil, showing its uneven texture and dense structure. 

 When unmodified by water action, it usually shows no stratification 



of clay, than soil formed by purely chemical process 

 from the same rock. 



Associated with the results of pure ice-action is 

 much modified glacial till, due to the influence of great 

 volumes of water. Naturally, the melting of the ice 

 results in immense volumes of water, which drain 

 away over, under, or along the ice margin. Temporary 

 streams of large size and great violence existed 



