A STATISTICAL ANALYSIS OF THE DISTRIBUTION OF SELENIUM IN THE PERMIAN PHOSPHORIA FORMATION, SOUTHEASTERN IDAHO
The statistical analyses include evaluation of descriptive statistics and correlation matrices, as well as factor analysis to gain a better understanding of the latent factors that may be affecting Se residency. These analyses produced results showing the expected chemical associations such as correlations to sulfide minerals and organic carbon, as well as the importance of weathering on the mobility of Se. Also, less expected results such as the correlation between Se- and ore-producing carbonate-fluorapatite rich strata are shown. Finally, this work provides a data set of statistical relationships that can be considered in development of geochemical models to better understand trace element residency in the Phosphoria Formation.