Mega Uranium Ltd Lake Maitland

Transcription

1 Lake Maitland National Instrument Technical Report Preliminary Assessment and Project Status November 2009 Report Prepared for Prepared by: November 2009

2 - Lake Maitland NI Technical Report Page i Lake Maitland National Instrument Technical Report Preliminary Assessment & Project Status - November Havelock Street West Perth WA 6005 Richard Ladyman Managing Director - Como Engineers Pty Ltd Daniel Guibal Corporate Consultant SRK Consulting 19 November 2009 Peter Gleeson Principal Consultant SRK Consulting Matthew Wheeler Manager Geology Daryl Evans Principal Metallurgist IMO Pty Ltd

3 - Lake Maitland NI Technical Report Page ii Table of Contents 3 Summary Location Ownership Geology, Mineralisation and Resources Metallurgical Preliminary Assessment Outcomes Project Development Status Introduction Scope of Report Principals Sources of Information Report Authors Independence Reliance on Other Experts Property Description and Location Property Details Tenement Schedule Agreements and Royalties Farm-In and Joint Venture Royalty Agreements Uranium Rights Memorandum of Understanding Permits and Obligations Minimum Expenditure Commitments Bonds Environmental Liabilities Accessibility, Climate, Local Resources, Infrastructure and Physiography History Geological Setting Deposit Type Mineralisation Exploration Drilling Redport Ltd 2005 Aircore Drilling /2008 Drilling Aircore Drilling Sonic Core Drilling Safety Drillhole Collar Surveying Results Sampling Method and Approach Downhole Gamma Logging Logging Methods Calibrations and Verifications Calculation of eu 3 O Geological Logging Redport Ltd... 41

4 - Lake Maitland NI Technical Report Page iii Sampling Redport Ltd Sample Preparation, Analysis and Security Sampling Redport Ltd Adequacy of Analytical Procedures Bulk Density Determinations Data Verification Review of Downhole Gamma vs Chemical Assays Basic Statistical Analysis Regression Analysis QQ Plot Analysis Downhole Comparison Conclusions of Comparative Analysis QA/QC Assessment of Drillhole LMAC Repeat Logging Twinned Holes QA/QC of Chemical Assays Blanks Standards Pulp Duplicates Adjacent Properties Mineral Processing and Metallurgical Testing Introduction Sighter Testwork Sighter Testwork Samples Chemical Characterisation Physical Characterisation Mineralogy Uranium Alkaline Leach Extraction Alkaline Leach Carbonate Consumption Chloride Content Conclusions Recommendations Scoping Testwork Introduction Scoping Testwork Samples Comminution Testing Beneficiation Testing Reverse Sulphate Flotation Ambient Temperature Pre-Leaching Reverse flotation and Elevated Temperature Alkaline Leaching Heap Leach Slurry Rheology Uranium Refining and Recovery Flowsheet Testing Process Flowsheet Process Development History Process Flow Process Description Conclusions Recommendations... 98

5 - Lake Maitland NI Technical Report Page iv 19 Mineral Resource and Mineral Reserve Estimates Geological Modelling and Domaining Geology Modelling Grade Domaining Estimation Database Densities Disequilibrium Statistical Analysis of Resource Domains Application of Upper Cuts Variography Block Modelling Estimation / Kriging Classification Resource Summary Model Limitations Recommendations Modifying Factors Other Relevant Data and Information Introduction History Geology and Resources Resource Development Status Mining Mine Design and Operation Semi-Mobile Crushing Metallurgical Testing Processing Background Base Case Process Design Basis Crushing Circuit Concentrator Circuit Key Reagents Plant Infrastructure and Services Process Alternatives Project Infrastructure Proximity of Townships Access Roads Site Accommodation Airstrip Product Transport & Export Facilities Water Supply Fuel Supply Power & Gas Supply Environmental, Safety, Health (ESH), Native Title & Project Approval Environment Safety Radiation Native Title Aboriginal Heritage Project Approval and Permitting Processes Significant Issues for the Project Preliminary and Baseline Studies Waste Management Process Wastewater Dust Emissions Residue Handling and Disposal Plant Residue Disposal Options Under Consideration