Solutions to reduce blast-induced ore loss and dilution at Ahafo Gold Mine in Ghana

Rogers, W., Kanchibotla, S. S., Tordoir, A., Ako, S., Engmann, E. and Bisiaux, B. (2012). Solutions to reduce blast-induced ore loss and dilution at Ahafo Gold Mine in Ghana. In: 2012 SME Annual Meeting and Exhibit 2012, SME 2012, Meeting Preprints. 2012 SME Annual Meeting & Exhibit (SME 2012), Seattle, Washington, USA, (6-10). 19 - 22 February 2012.

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Name Description MIMEType Size Downloads
Author Rogers, W.
Kanchibotla, S. S.
Tordoir, A.
Ako, S.
Engmann, E.
Bisiaux, B.
Title of paper Solutions to reduce blast-induced ore loss and dilution at Ahafo Gold Mine in Ghana
Conference name 2012 SME Annual Meeting & Exhibit (SME 2012)
Conference location Seattle, Washington, USA
Conference dates 19 - 22 February 2012
Proceedings title 2012 SME Annual Meeting and Exhibit 2012, SME 2012, Meeting Preprints
Journal name 2012 SME Annual Meeting and Exhibit 2012, SME 2012, Meeting Preprints
Place of Publication Colorado, United States
Publisher Society for Mining, Metallurgy & Exploration
Publication Year 2012
Sub-type Fully published paper
ISBN 9781622760893
Start page 6
End page 10
Total pages 5
Collection year 2013
Language eng
Formatted Abstract/Summary
Blast-induced rock mass displacement can have a significant impact on ore loss & dilution. The mischaracterisation of the grade boundaries both prior to, as well as a result of blasting can lead to significant financial losses on account of ore loss and dilution. Ore dilution occurs when waste material is miscategorised as ore and sent for processing or stockpiling, diluting the run of mine head grade and recovery. Ore loss takes place when valuable mineral is miscategorised as waste and sent to the waste dumps, thus never being processed and recovered.

Extensive research has been conducted at the University of Queensland over the last fifteen years to understand the impact of blast movement on ore loss and dilution. Recent outcomes of this research have developed innovative tools and techniques to measure and model blast movement.

These techniques have been implemented at Ahafo gold mine in Ghana to understand blast movement dynamics and to implement solutions to reduce blast-induced ore loss and dilution. These solutions are validated through controlled trials and have been incorporated into site standard operating procedures to sustain the benefits.
Q-Index Code EX
Q-Index Status Provisional Code
Institutional Status Non-UQ

 
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Created: Tue, 27 Mar 2012, 01:10:08 EST by Karen Holtham on behalf of Julius Kruttschnitt Mineral Research Centre