Singer, Donald A. <br/><br/>
Grade and tonnage model of rhyolite-hosted Sn 

 - Reston, VA  U.S. Geological Survey  1986 
 - pp. 169-171  ilus. 
 - U.S. Geological Survey Bulletin  n.1693 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>ESTAŅO<br/>GENESIS-YACIMIENTO<br/>GEOLOGIA ECONOMICA<br/>LEY MINERAL<br/>MODELOS GENETICOS<br/>PROSPECCION MINERA<br/>RESERVAS MINERALES<br/>RIOLITA<br/>ROCAS VOLCANICAS