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Maptek vulcan open pit design manual pdf
Maptek vulcan open pit design manual pdf





maptek vulcan open pit design manual pdf

Mine to mill reconciliations have improved since the implementation of distinct regions. The ability to use multiple structural orientations in a single pit to determine grade delineation is vital to limiting dilution and maximising ore potential. These models allow for geologically precise ore cuts used for routing material into grade bins. Blasthole samples falling within a specific region are flagged by the ore reserve model and then estimated along the pre-defined attitude for that region. The blasthole grades are then estimated into a block model which ultimately helps determine final block outs for mining.Ĭortez Hills Open Pit contains three deposits in one pit, each with a unique search orientation. The loaded blastholes are colour coded into pre-designated bins based on grade and other criteria. Once imported, blastholes are compared to a preset grade control classification using a grade control scheme file. Each pattern has a unique ID and contains around 75-120 off-set drillholes. In 2016 the Ore Control group upgraded from Vulcan 9 to Vulcan 10 and began seeing immediate results in block outs.Ĭortez Hills Open Pit engineers and geologists import blasthole samples from the acQuire database interface into Vulcan by blast pattern name. Since around 2009 Cortez Hills has used Maptek™ Vulcan™ for daily grade control processes. Gold mining in the district began in the 1960s on a small scale and in the 1990s moved into large scale, bulk gold mining with Placer Dome.

maptek vulcan open pit design manual pdf

Each deposit has its own structural orientation (attitude) and thus requires specific estimation parameters for ore routing.Ĭortez is a historic silver mining district dating back to the 1860s.

maptek vulcan open pit design manual pdf

Within the open pit operation, there are three distinct areas of mineralisation in one pit continuous mining occurs across the deposit boundaries. Typically, these structurally complex deposits are located along range-front faults and are silicified alteration at Cortez is decalcification.Ĭortez Hills has several related, but geometrically distinct orebodies being mined via both open pit and underground operations.

maptek vulcan open pit design manual pdf

Carlin-type deposits are sediment hosted, disseminated gold systems associated with arsenic and thallium. Located on the Battle Mountain-Eureka Trend, the Cortez Hills Mine (operated by Barrick Gold) is a uniquely mineralised Carlin-type deposit. Maptek Vulcan is used for grade control in a bulk mineable Carlin-type gold system at Cortez Hills Mine in Nevada.







Maptek vulcan open pit design manual pdf