Extremely valued reading for anyone interested in finding gold deposits or new patches for detecting.
How to determine a numerical quantitative assay based directly from pan observations using the formula G=2 x (Y3 x 1000)/sample size in grams.
ie. determine grams per tonne on any deposit you may be working with reproducible accuracy.
(G=gpt, Y=Gold particle size in mm etc)
How to perform a basic qualitative assay on gold purity from nuggets or specimens.
How to determine gold particle sizes you may have in the pan (Y) and what this means for your exploration purposes
Numerical field note data templates you can copy.
A list of basic equipment you will need and method required
Stream sediment and soil sampling techniques based on modern geochemical exploration methods.
Much more.
Many thanks for the reference Loamer, was well worth my money!
Regards