Upward Ancillary Kimberlite Pipe Growth in the Venetia Cluster

Wayne Barnett, Stephan Kurszlaukis, Mark Tait, Paul Dirks
Sunday, August 10, 2008
First presented: 
9th International Kimberlite Conference
Published paper

Current kimberlite pipe development models strongly advocate a downward growth process as the pipe cuts down onto its feeder dyke by means of volcanic explosions (e.g. Lorenz, 1975; Sparks et al., 2006). Evidence is presented from a detailed study of the K08 pipe within the Cambrian Venetia kimberlite cluster, Southern Africa, that some pipes or sub-components of pipes develop upwards. This paper investigates the growth history of the K08 pipe and the mechanics of pipe development based on observations in the pit, drill core and thin sections, from geochemical analyses, particle size distribution analyses, and 3D modeling.

Feature Author

Dr. Wayne Barnett

Wayne Barnett has collected, managed, and interpreted exploration and mining data throughout his 18-year career in the mining and exploration industry. In 1999, he built the first known integrated ODBC database that used geotechnical mapping and production drilling sensor data to automatically calculate rock mass classification information for immediate use in mine planning and slope design.

A principal structural geologist, Wayne undertakes and provides best-practices training in structural and oriented drill core logging and mapping, geological data management, data QA/QC, and the statistical analysis of structural data. He is an expert in geological applications of ArcGIS and has developed customized analytical tools for exploration purposes. Wayne is driven to improve the geological mapping workflows for mining operations through integrating the benefits of old-school interpretative paper-based mapping with new mapping technologies.

Mining Data Management Specialist
PhD, PrSciNat
SRK Vancouver
SRK North America