Practical methods for correlating diamonddrill core intersections: Applications to complex vein-type orebodies

CIM Bulletin, Vol. 90, No. 1008, 1997
Damien Gaboury,, Université du Québec à Chicoutimi, Sciences de la Terre — Centre d’étude sur les ressources minérales, Chicoutimi, Québec, Canada
Abstract Two practical methods for correlating two or more diamond-drill core intersections, using a stereographic projection software are presented. The first may be used to establish if two or more
vein intersections are correlative, based on their core angles and diamond-drillhole attitudes. The
second method allows prediction of main vein attitudes from numerous intersections, based on a spherical density contouring projection. The methods are suitable for: (1) correlating veins in complex orebodies; (2) ascertaining lateral continuity of ore for reserve estimations; (3) demonstrating the hidden complexity of an orebody; and (4) correlating and interpreting various planar elements.
Keywords: Geology, Diamond-drill core intersections, Complex vein-type orebodies.
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