By: Brian Harrisson This article appeared in the Journal of the Australasian Institute of Mining and Metallurgy, No. 6 December, 2009 at, P24. A recent technical paper has challenged one of the golden rules of exploration namely that angled drill holes detect dipping targets more effectively than vertical holes. The

Author: Harrisson, B. K. Source: Mining Technology, Volume 118, Number 1, 2009, pp. 13-24(12) Publisher: Maney Publishing Abstract: The paper examines the conventional belief that angled holes are more detection effective than vertical holes with dipping targets. The examination uses a binomial probability framework. Analysis in two and three