000 01062cam a2200277 4500
001 gs 66000313
003 DLC
005 20260227111420.0
008 690710s1966 aluabc b 00010 eng c
010 _ags 66000313 //r932
040 _aU.S. Geol. Survey. Library
_cDLC
_dDLC
050 0 0 _aTN942
_b.C55
082 0 0 _a553/.61/09761
100 1 0 _aClarke, Otis M.
245 1 0 _aClay and shale of northwestern Alabama,
_cby Otis M. Clarke, Jr.
260 0 _aUniversity, Ala.,
_bGeological Survey of Alabama, Division of Economic Geology,
_c1966.
300 _a88 p.
_billus., maps (part col., 1 fold. in pocket) port.
_c23 cm.
490 1 _aGeological Survey of Alabama. Circular 20B
500 _aPrepared in cooperation with the Bureau of Mines, U.S. Dept. of the Interior.
504 _aBibliography: p. 33-34.
650 0 _aClay
_zAlabama.
650 0 _aShale
_zAlabama.
710 2 0 _aGeological Survey of Alabama.
_bEconomic Geology Division.
710 1 0 _aUnited States.
_bBureau of Mines.
830 0 _aCircular (Geological Survey of Alabama) ;
_v20B.
999 _c30276
_d30276