While the company had acquired a Diamec 252 diamond drill to assist Paravicini in his sampling program on the Cangalli concessions, Paravicini and Dr. Donald Hausen, a member of the company's Technical Advisory Board, recommended against its use due to the deposit's characteristics. Instead, a program of channeling, trenching and pitting was chosen because of increased representative sample size.
Since deep drilling was not going to be used, Paravicini created 3-dimensional modeling of the ore blocks based on deep sampling made possible by the steep, naturally-trenched terrain, and by shaft and pit sampling possible at depth. Sampling was conducted in sufficient detail to be able to compute grade and quality.
The sites for inspection, sampling and measurement were spaced closely enough, and the geologic character was so well defined, that size, shape, depth and mineral content was well established as to either resource or reserve calculations. Paravicini emphasized other important factors relative to his sampling program and report: |