Generalized fence diagram showing principal coal and key marine beds of Pennsylvanian age in the Hazard 30' x 60' Quadrangle, eastern Kentucky

1986 ◽  
1985 ◽  
Vol 1 (3) ◽  
pp. 35-40
Author(s):  
Frederick P. Rivara ◽  
Gregory A. Culley ◽  
Durlin Hickok ◽  
Ronald L. Williams

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