Doehne, Eric <br/><br/>
Trace-element geochemistry and mineralogy of the Cretaceous/Tertiary boundary: identification of extraterrestrial components 

 - Boulder, CO  Geological Society of America  1990 
 - pp. 367-382  ilus., tbl. 
 - Special Paper. Geological Society of America  n.247 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>ELEMENTOS SIDEROFILOS<br/>ELEMENTOS TRAZA<br/>EXTINCION MASIVA<br/>LIMITE K-T
<br/><br/><label>Universal Decimal Class. No.: </label>56.017.4/S47|56