All potentially mineralized samples were assayed for gold by inductively coupled plasma-atomic emission spectroscopy (ICP-AES) following a 30-g fire assay fusion (FA), after four-acid, near-total digestion. Rock samples collected in 2008 and 2009 with the potential for elevated platinum-group-element content were assayed for gold, platinum, and palladium by 30-gram fire assay and inductively coupled plasma-mass spectrometry (ICP-MS) finish after four-acid, near-total digestion in 2008, and by 30-g fire assay and ICP-AES finish after four-acid, near-total digestion in 2009. All other trace-element geochemical analyses, from all years, were performed by ICP-AES methods after four-acid, near-total digestion. This method of digestion is [...]
