What is this layer?
MnO content in weight percent (wt%) for all samples in the GSWA geochemistry database (WACHEM). Most of the samples analysed are surface samples from Western Australia, but some are subsurface specimens from drillholes (sample locations are projected to the drillhole collar).
The layer shows samples that have been analysed for MnO.
Null values are indicated by ‘-9999’ while any obviously spurious data (i.e. MnO reported with a value greater than 100%) are replaced by ‘-6666’.