Огноо: 2012-11-28 - 2012-11-30 | Зохион байгуулагч: Society of Economic Geologists | Байршил: SEG Course Center | Littleton, CO, USA | Вэбсайт: www.segweb.org
This workshop will present an overview of sediment-hosted Zn-Pb-Ag ores from syngenetic and diagenetic environments to high temperature carbonate replacement with a strong emphasis on exploration.
The reserve estimates that form
the basis for final feasibility studies leading to the construction of
a mine are, to a greater or lesser
degree, almost invariably wrong.
Unfortunately, the error is in only
one direction. The tonnage of ore
mined may exceed the tonnage
predicted by the “feasibility reserve,” but the grade of ore actually mined is almost invariably
lower than the grade envisioned
in the feasibility study. As a result, the financial profitability of
the operation very rarely meets
the feasibility forecast. This course
is NOT a course in financial evaluation or geostatistics, although
both of these subjects are discussed, nor is it a collection of
“cookbook” recipes for reserve
estimation. It is intended as a discussion of various aspects of reserve estimation that are often
neglected in the real world, and
which contribute to the above situation. Various exercises, mostly based
on actual operations, are presented to illustrate points important to the evaluation of
any mineral deposit. The course will be of
interest to geologists dealing with the practical aspects of reserve estimation and mining engineers, as well as to decision-makers
in economic geology in general. Course
materials will include a copy of the latest
edition of SEG’s consistently well-received
Special Publication Number 3 Ore Reserve
Estimates in the Real World, by John G.
Stone and Peter G. Dunn.