Re: Nickel Mines : Grades and Depths - Mucker ? Answers ?-Fantomas
in response to
by
posted on
Aug 22, 2009 06:19PM
NI 43-101 Update (September 2012): 11.1 Mt @ 1.68% Ni, 0.87% Cu, 0.89 gpt Pt and 3.09 gpt Pd and 0.18 gpt Au (Proven & Probable Reserves) / 8.9 Mt @ 1.10% Ni, 1.14% Cu, 1.16 gpt Pt and 3.49 gpt Pd and 0.30 gpt Au (Inferred Resource)
With all due respect, "head" grades are the grades of the ore shipped to the mill for processing from the mine. Geo's estimate those grades from UG/surface sampling and DDH info.
Respectfully submitted
geoprof