Jean-Michel (J-M) Rendu is an independent consultant supplying
services to the international mining industry. J-M retired from
Newmont Mining Corporation in 2001 as vice president of resources
and mine planning with worldwide responsibility for corporate and
mine-site mining engineering activities, and for estimation and
reporting of resources and reserves. Before joining Newmont, J-M
was an associate consultant with Golder Associates; an assistant
professor with the University of Wisconsin-Madison; head of
operations research with Anglovaal, Johannesburg, South Africa; and
systems analyst with Kennecott Copper Corporation.
J-M graduated from École des Mines de Saint-Étienne in 1966 and
obtained M.S. and Eng.Sc.D. degrees from Columbia University in the
City of New York. He authored more than 50 technical papers on
deposit modeling, mine engineering, estimation of resources and
reserves, and U.S. and international regulatory requirements for
public reporting. He is the author of An Introduction to
Geostatistical Methods of Mineral Evaluation, published by the
South African Institute of Mining and Metallurgy in 1978 (second
edition, 1981) and An Introduction to Cut-off Grade Estimation,
published by SME in 2008 (second edition, 2014).
Rendu, a mining companies manager, consultant, and educator who
specializes in the management, estimation, and public reporting of
mineral resources, describes the fundamental principles of cut-off
grade estimation and how to determine which cut-off grade should be
used to separate material in mines that should be processed from
material that should be sent to the waste dump. He explains general
concepts such as utility function, breakeven cut-off grade, and
opportunity cost; the estimation of breakeven cut off grades, with
examples of how to separate ore from waste, choose between
different processes, analyze polymetallic deposits, and develop
stockpiling strategies; opportunity cost and constraints imposed by
the geology of the deposit; the costs that should be included in
cut-off grade calculations; situations where there is a need to
stockpile and blend material to satisfy technical and marketing
requirements; and new methods to optimize blending depending on the
objective. In this edition, the relationship between optimization
of net present value, capacity constraints, and opportunity costs
is detailed more, and it has a new section on blending strategies
applicable to coal and iron ore mines, as well as in metal mines.
Chapters have been reorganized.
Annotation �2014 Ringgold Inc. Portland, OR (protoview.com)
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