Mining and Geology

Preliminary technical and economic study Joanna gold mining project
    Rouyn-Noranda, Québec
    Mines Aurizon Ltée
    Preliminary technical and economic study


In October 2007, Aurizon Mines Ltd commissioned BBA to undertake a preliminary assessment of the Joanna gold mining project near the town of Rouyn-Noranda, Quebec. The objective of the assessment was to assess the potential in-pit mineral resources for a stand-alone open-pit operation. The study's technical report was prepared in compliance with the guidelines set out under the National Instrument "Form 43-101F1 Technical Report" for the Standards of Disclosure for Mineral Projects, Section 143, of the Security Act of the Ontario Securities Commission.


The scope of work included the following:

  • Transfer of the Hosco et Heva geological models and topographic divides into the MineSight/MedSystem software
  • Development of the economic model and pit optimization using the Lerchs-Grossman 3D (LG 3D) algorithm (MineSight/MedSystem)
  • Detailed pit design
  • Compilation of mine reserves
  • Assessment of the mining dilution
  • Yearly mine planning until the exhaustion of reserves
  • Design of the tailings area
  • Selection of mining equipment and determination of equipment requirements
  • Estimation of capital and operating costs within +/-30 %
  • Production of a report compliant with Form 43-101, and production of drawings.