The economic value of an extracted block is calculated according to Equation [17], where gmis grade, pmis price, Rm is the recovery of mineral m, Cpis processing cost, Cris mining cost, and t is tonnage. The tonnage is calculated by multiplying the specific gravity by the block volume. It is assumed that all mined blocks are processed and un-extracted blocks have zero value. The resulting plan can be visualized using SGeMS software (Remy, Boucher, and Wu, 2009) as in Figure 5. Each stope is illustrated with a colour that corresponds to the average grade in the stope. Representative sublevels are shown in grey. The heuristic approach was able to successfully identify the ore-rich areas in the deposit and generate a stope layout plan. It can be observed from Figure 5 that the minimum average stope Au grade is 0.376 g/t, which can be considered as the stope cut-off grade for this operation.
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List of Participants FIG Working Week 2009 Surveyors Key Role in Accelerated Development Eilat, Israel, 3-8 May 2009 FIG Working Week 2009 Eilat, Israel, 3-8 May 2009 List of Participants Surname Australia First Name Company/Organization E-mail Brock John Brock Surveyrs PTY. LTD. jb@totalsurveying.com.au Fairlie Kate University of Technology, Sydney kfairlie@gmail.com Higgins Matt FIG matt.higgins@nrw.qld.gov.au McCoy Malcolm Survey21 mal@survey21.com.au Newnham Leonie Department of Sustainability and Environment leonie.newnham@dse.vic.gov.au Sandy Craig ESRI Australia csandy@esriaustralia.com.au Watkins Austria Warwick NSW Department of Lands warwick.watkins@lands.nsw.gov.au Fabiankowitsch Johannes jfabian@pop-tuwien.ac.at Steinkellner Gert Austrian Society for Surveying and Geoinformation gert.steinkellner@bev.gv.at Belgium Vanderschueren Marc FPS Finance - Patrimonial Documentation - Cadastre Brazil Pelegrina Marcos Universidade Federal de Santa Catarina Bulgaria marc.vanderschueren@minfin.fed.be marcospelegrina@gmail.com Georgiev Rumen Rumen Georgiev Global geo rgeorgiev@kig-bg.org Sotirova Mariya Chamber of graduated surveyors kamara@kig-bg.org Yanakiev Angel GEOCONSULT kamara@kig-bg.org Zlatanov Canada Zlatan Geocad 93 Ltd. office@geocad93.com Barry Michael University of Calgary mbarry@ucalgary.ca Leyzack Andrew Canadian Hydrographic Service, Fisheries and Oceans Canada aleyzack@gmail.com 1/17 2ff7e9595c
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