Drift (geology) Information
In geology, drift is the name for all material of glacial origin found anywhere on land or at sea,  including sediment and large rocks ( glacial erratic). Glacial origin refers to erosion, transportation and deposition by glaciers.
- Press, F., and R. Siever, 1986, Earth, 4th ed., W.H.Freeman and Company, NY, p. 248
- The American Cyclopædia. 1879. .
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