Swanson, Vernon Emanuel,  1922- <br/><br/>
Geology of a uranium-bearing black shale of Late Devonian age in north-central Arkansas, 
by Vernon E. Swanson and Edwin R. Landis. 
 - [Little Rock]  Arkansas Geological and Conservation Commission,  1962. 
 - v, 16 p.  illus., map.  28 cm. 
 - Arkansas. Geological and Conservation Commission. Information circular no. 22 .
 - Information circular (Arkansas Geological Commission) ;  22. .
<br/><br/> "Prepared by the U.S. Geological Survey in cooperation with the Arkansas Geological and Conservation Commission." 
<br/><br/>Bibliography: p. 15-16. 
<br/><br/><label>LCCN: </label>gs 64000357  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology, Stratigraphic--Devonian.<br/>Black shales--Arkansas--Marion Co.<br/>Uranium--Arkansas--Marion Co.
<br/><br/><label>LC Class. No.: </label>QE87  / .A3 no. 22 
<br/><br/><label>Dewey Class. No.: </label>557.67/08 s