Comments on “Classification and reporting of mineral resources for high-nugget effect gold vein deposits,” by S.C. Dominy, P.R. Stephenson and A.E. Annels / Комментарии к "Классификация и отчет о минеральных ресурсах для жильных месторождений золота..."

Комментарии к "Классификация и отчет о минеральных ресурсах для жильных месторождений золота с высоким эффектом самородка"

This text consists of two parts, comments on “Classification and Reporting of Mineral Resources for High-Nugget Effect Gold Vein Deposits,” by S.C. Dominy, P.R. Stephenson and A.E. Annels, Volume 10, No. 3, pp. 215-233, and related comments on some features of the JORC Code. This paper is, in many respects, a very elaborate and valuable account of the problems encountered in the estimation and classification of high-nugget gold deposits. However, in some key areas, it appears to fall short of its objective to help “resolve satisfactorily most issues” and “contribute to improved estimation and classification” (abstract). One must realize that high-nugget effect gold deposits constitute a very narrow field, despite the occasional bonanzas. This is a field of mostly smaller sized deposits, where limited success and a significantly higher rate of failure occur relative to larger deposits of mostly lower grade. This is shown by the six deposits described in the paper. Thanks for contributing to greater understanding of these complex and nevertheless challenging deposits.