Figure 1From: Micro-spectroscopic investigation of selenium-bearing minerals from the Western US Phosphate Resource Area(Color) Exploration drilling core profile from analyses of P2O5 and total Se in the sedimentary profile of the Meade Peak Member of the Phosphoria Formation near the Smoky Canyon Mine, Caribou County, ID. Horizontal bar graph indicates concentrations in 0.6 m sections. Adapted from Munkers (Ref. 30).Back to article page