Simandl, George J. <br/><br/>
Portable X-ray fluorescence in the assessment of rare earth element-enriched sedimentary phosphate deposits 

 - London  Association of Applied Geochemists & The Geological Society   mayo 2014 
 - pp. 161-169  ilus. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>EXPLORACION MINERA<br/>FLUORESCENCIA DE RAYOS X<br/>FOSFATOS<br/>GEOQUÍMICA<br/>RECURSOS MINERALES<br/>TIERRAS RARAS