Muestreo Per Gy

Introducción al Muestreo Minero
por
Marco Antonio Alfaro Sironvalle
Santiago, Chile, 2002
Instituto de Ingenieros de Minas de Chile.
Encomenderos 260, Of. 31. Tel (56-2) 2461615, Fax 2466387.E-Mail: instituto@iimch.cl
Web: http://www.iimch.cl
Santiago, Chile, 2002.
Es Propiedad.
Prohibida la reproducción parcial o total sin autorización del autor.
1
Preface
Is there a singleimportant decision made on a mining project that is not in a way or another, directly or indirectly based on some kind of assayed grade, or in other terms on a mineral sample? And who, in the end, isresponsible for the devastating consequences of taking bad samples?
It clearly is a subject of utmost importance that Dr. Marco Alfaro has decided to bring to his audience in this simple, yet fundamentalleaflet, which is directed not only to technical professionals of the mining industry, but also to those who manage them and bear the ultimate responsibility for the results and consequences of mineralsampling. In this piece of work, Dr. Alfaro genuinely makes justice to the simplicity of sampling theory, and to the many services it renders and has rendered the industry over several decades ofapplications.
Like in many a discipline, however, there is Sampling and ‘Sampling’, good and poor applications, enlightenment and ignorance, science and witchcraft. Practical implementations have keptimproving, but have also suffered through many avatars, not all consistent with its eminently scientific approach. Erroneous sampling equipment and experimental procedures, incorrect application modelsand formulae, based on a highly commercial but appallingly arbitrary modus operandi, have made their way into our service and equipment markets, and are currently offered to the non-discerningprofessional. The utmost critical sense and prudence must be exercised.
It is to Dr. Alfaro’s credit to have presented in a simple and short publication all the tools that will help the professional of...