Forsman, Nels <br/><br/>
Misuse of the term "bentonite" for ash beds of Devonian age in teh Appalachian basin; discussion and reply 
 Misuse of the term "bentonite" for ash beds of Devonian age in teh Appalachian basin 

<br/><br/><label>ISSN: </label>00167606 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Bentonite<br/>Etude critique<br/>Nomenclature<br/>Shale noir
<br/><br/><label>Subjects--Index Terms: </label>Etats Unis