Marsh, Sherman P.  1935- <br/><br/>
Rutile in Precambrian sillimanite-quartz gneiss and related rocks, east-central Front Range, Colorado / 
by Sherman P. Marsh and Douglas M. Sheridan. 
 - Washington:   United States Government Printing Office,   1976.  
 - v, G17 p. :  ill., maps, tables ;  29 cm. 
 -  959 Geology and resources of titanium in the United States .
<br/><br/>Includes bibliographical references (p. G17). 
<br/><br/> Geologic and geochemical study of rutile-bearing rocks in Colorado and a description of their occurrence elsewhere. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Rutile--Front Range (Colorado and Wyoming)<br/>Gneiss--Front Range (Colorado and Wyoming)
<br/><br/><label>Dewey Class. No.: </label>553.662