Items related to Soil Report, Vol. 11: Pike County Soils (Classic Reprint)

Soil Report, Vol. 11: Pike County Soils (Classic Reprint) - Softcover

Cyril G. Hopkins

 
9780331978629: Soil Report, Vol. 11: Pike County Soils (Classic Reprint)

Synopsis

Excerpt from Soil Report, Vol. 11: Pike County Soils

In moving across the country, the ice gathered up all sorts and sizes of earthly material, including masses of rock, boulders, pebbles, and finer debris. Many of these were carried for hundreds of miles and rubbed against the surface rocks or against each other until ground into powder. When the limit of advance was reached, where the ice largely melted, this material was deposited in a broad, undulating ridge, or moraine. When the ice melted away more rapidly than the glacier advanced, the terminus of the glacier would recede and leave the moraine to mark the outer limit of the ice sheet.

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