Keller, Margaret <br/><br/>
Strontium isotope evidence for the age of the vaqueros formation and latest oligocene marine transgression in the Northern Santa Maria Province. 

<br/><br/><label>Standard No.: </label>U.S.Geological Survey Bulletin 1995-P,Q 
<br/><br/><label>Subjects--Index Terms: </label>GEOLOGIA 
<br/><br/><label>Universal Decimal Class. No.: </label>551.7