01319cam a2200313 4500001001300000003000400013005001700017008004100034010001700075040004500092043001200137050002100149051002700170082001600197100003600213245013600249260007500385300003500460490008200495500011800577504002800695650003800723650003900761650003400800700006000834710002900894830006500923999001700988gs 64000357 DLC20260227111415.0700727s1962 aruab b 000 0 eng c ags 64000357  aU.S. Geological Survey LibrarycDLCdDLC an-us-ar00aQE87b.A3 no. 22 aTN490.U7bS95cCopy 2.00a557.67/08 s1 aSwanson, Vernon Emanuel,d1922-10aGeology of a uranium-bearing black shale of Late Devonian age in north-central Arkansas,cby Vernon E. Swanson and Edwin R. Landis. a[Little Rock]bArkansas Geological and Conservation Commission,c1962. av, 16 p.billus., map.c28 cm.1 aArkansas. Geological and Conservation Commission. Information circular no. 22 a"Prepared by the U.S. Geological Survey in cooperation with the Arkansas Geological and Conservation Commission." aBibliography: p. 15-16. 0aGeology, StratigraphicyDevonian. 0aBlack shaleszArkansaszMarion Co. 0aUraniumzArkansaszMarion Co.1 aLandis, Edwin R.q(Edwin Robert),d1926-ejoint author.2 aGeological Survey (U.S.) 0aInformation circular (Arkansas Geological Commission) ;v22. c29917d29917