Charbucinski, J. Ultra-low radiation intensity spectrometric probe for ore body delineation and grade control of Pb-Zn ore - Toronto Prospectors and Developers Association of Canada 1997 - pp. 631-638 ilus. Subjects--Topical Terms: EXPLORACION MINERAGAMMA-GAMMAPLOMOPROSPECCION MINERASONDEOSZINC Subjects--Geographic Terms: AUSTRALIA Universal Decimal Class. No.: R/061.3:550.8(100)/I61|66