Understanding blast movement and its impacts on grade control at Ahafo Gold Mine in Ghana

Rogers, Wayne, Kanchibotla, Sarma, Tordoir, Alan, Ako, Seth, Engmann, Eric and Bisiaux, Bryon (2012). Understanding blast movement and its impacts on grade control at Ahafo Gold Mine in Ghana. In: Proceedings of the Thirty-Eighth Annual Conference on Explosives and Blasting Technique. 38th Annual Conference on Explosives and Blasting Technique, Nashville, TN, USA, (11-22). 12 - 15 February 2012.

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Name Description MIMEType Size Downloads
Author Rogers, Wayne
Kanchibotla, Sarma
Tordoir, Alan
Ako, Seth
Engmann, Eric
Bisiaux, Bryon
Title of paper Understanding blast movement and its impacts on grade control at Ahafo Gold Mine in Ghana
Conference name 38th Annual Conference on Explosives and Blasting Technique
Conference location Nashville, TN, USA
Conference dates 12 - 15 February 2012
Proceedings title Proceedings of the Thirty-Eighth Annual Conference on Explosives and Blasting Technique
Place of Publication Cleveland, OH, United States
Publisher International Society of Explosives Engineers
Publication Year 2012
Sub-type Fully published paper
Start page 11
End page 22
Total pages 12
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 fmancial losses on account of ore loss and dilution. Ore dilution occurs when waste material
is miscategorised as ore and sent for processing 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.

This paper describes the application of recent developments in the measurement and modelling of blast
movement and implements them at Ahafo gold mine, Ghana to understand and quantify the impact of
blast movement on ore loss and dilution.
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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Created: Tue, 27 Mar 2012, 01:15:02 EST by Karen Holtham on behalf of Julius Kruttschnitt Mineral Research Centre