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Page 4371, results 109251 - 109275

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Altitude of potentiometric surface, fall 1985, and historic water-level changes in the Fort Pillow aquifer in western Tennessee
W. S. Parks, J. K. Carmichael
1990, Water-Resources Investigations Report 89-4048
Recharge to the Fort Pillow aquifer of Tertiary age in Tennessee is from precipitation on the outcrop, which forms a narrow belt across western Tennessee, and by downward infiltration of water from the overlying fluvial deposits of Tertiary and Quaternary age and alluvium of Quaternary age or, where the upper...
Geology and ground-water resources of the Cockfield Formation in western Tennessee
W. S. Parks, J. K. Carmichael
1990, Water-Resources Investigations Report 88-4181
The Cockfield Formation of the Claiborne Group of Tertiary age underlies approximately 4,000 sq mi in western Tennessee. The formation consists primarily of lenticular beds of very fine to coarse sand, silt, clay, and lignite. The Cockfield Formation has been extensively eroded, and the original thickness is preserved only in...