What is this layer?
A raster showing relative prospectivity values for lithium derived empirically from the intersection of exploration drillhole data with an interpolation of median δ18O values sourced from GSWA’s Zircon oxygen isotope map of Western Australia dataset. The oxygen isotope raster was intersected with harmonized Li grades from Western Australia’s exploration geochemistry database (WAMEX). Median δ18O ranges were assigned relative prospectivity scores from 1 (lowest) to 3 (highest) based on their correlation with harmonized Li grades.