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TRANSPORTATION AND DEPOSITION
OF SEDIMENTS
 Changes
in the sea level interrupted the sequence of erosion, transportation
and deposition of kaolin from the Piedmont, but the process continued
for some 30 to 35 million years. The last invasion of the land by
the great sea deposited huge amounts of red and brown sands and
clays over the kaolin deposits. These later sediments formed the
characteristic red hills of Middle Georgia. They covered many of
the kaolin deposits with more than 200 feet of material, rendering
these deposits uneconomical to mine. A typical cross-section of
Coastal Plains Sediments showing the bedding or layering of the
sediments and the position of the kaolin beds.
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