technical report on the nechalacho deposit, thor lake project ...

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Table 18-11 Mine Production Forecast Technical Report 43-101 – March 13, 2011 Page 18-33 Prepared by Avalon Rare Metals Inc.
HEALTH AND SAFETY All crew will be issued TLDs to monitor the exposure to radiation in the work place. Records will be maintained and exposure limits will be set such that if workers are exposed to radiation above a certain limit they will be moved to a different work area to reduce their exposure and to maintain safe working conditions. In addition, radon and thoron (radon isotope produced by thorium) levels within the mine and plant air would be monitored to ensure that mine ventilation is sufficient to reduce radon and thoron to acceptable concentrations. Refuge stations will be installed in the vicinity of the most active work places and a secondary egress will be in place before production commences. Site crews will be trained in mine rescue procedures and a mine rescue station will be set up and equipped to respond to an emergency. The mine will purchase and maintain a set of BG-4 breathing apparatus as well as SCBA’s for use on surface. Procedures for maintaining contact with other operating mines with regards to their mine rescue teams will be implemented. A diesel operated ambulance will be maintained at the site for use on surface and underground and a fully equipped first aid room will be set up and maintained and there will be first aid coverage at the site at all times. Surface firefighting equipment will be kept on site and hydrants and hose stations for firefighting will be installed at strategic locations on surface. Emergency procedures as required under the Mining Regulations will be prepared and submitted for approval as required. FUTURE MINING The mining within this section is restricted to material that can be converted to proven or probable mineral reserves. In addition to the resources extracted in the LOM presented above there are significant measured, indicated and inferred resources within the Thor Lake Project. Additional mine planning and exploration is recommended to permit the development of the most efficient exploration and exploitation plan for the additional resources. Technical Report 43-101 – March 13, 2011 Page 18-34 Prepared by Avalon Rare Metals Inc.
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TECHNICAL REPORT ON THE NECHALACHO
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TABLE OF CONTENTS 1. SUMMARY ......
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QUALITY ASSURANCE / QUALITY CONTROL
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Warehouse..........................
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LIST OF TABLES Table 1-1 Summary of
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Table 18-9 Mine Ventilation Quantit
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Table 18-54 Table 18-55 Pine Point
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LIST OF APPENDICES APPENDIX A Block
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Table 1-1 Summary of Mineral Resour
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Royalties. The net revenue generate
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• The products will be shipped in
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• Income taxes and NWT mining roy
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2. INTRODUCTION This report
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Figure 2-2 Project Sites, Thor Lake
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Table 2-1 Rare Earth Element Data A
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LIST OF ABBREVIATIONS Units of meas
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4. PROPERTY DESCRIPTION AND LOCATIO
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The mining leases have a 21-year li
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5. ACCESSIBILITY, CLIMATE, LOCAL RE
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Fort Resolution is located on the s
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producing a tantalum concentrate, b
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Figure 7-2 Detailed Deposit Geology
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The nepheline-sodalite syenite host
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LATE TECTONIC FAULTS Faults are pre
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8. DEPOSIT TYPES The mineral deposi
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The Ore (Nechalacho) Nepheline Soda
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from section to section - this may
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Table 9-1 Average Percent of Ore Mi
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The Nechalacho deposit alteration s
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11. DRILLING Since 1977, diamond dr
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Foraco drill rig was added in Febru
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CORE LOGGING AND CORE RECOVERY The
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A high R 2 (and all regressions had
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12. SAMPLING METHOD AND APPROACH A
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such as Illimausaq in Greenland, a
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13. SAMPLE PREPARATION, ANALYSES AN
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limited set of elements; however, s
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CONCLUSIONS Avalon’s conclusions
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Tb and Dy) were routinely monitored
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As part of the QA/QC program, Avalo
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Table 14-4: Comparison of Niobium,
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shows more deviation, with ALS MS81
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16. MINERAL PROCESSING AND METALLUR
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In a typical test, for example CCr-
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17. MINERAL RESOURCE AND MINERAL RE
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9. TREO equivalent is estimated by
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Table 17-4 Sample Information Avalo
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Figure 17-1 Distribution of REO Com
Page 97 and 98: Assay Statistics for Upper Zone* *
Page 99 and 100: CUT-OFF GRADE A previous public res
Page 101 and 102: underneath for SG measurement purpo
Page 103 and 104: Figure 17-4 Density Measurements AL
Page 105 and 106: was equal to 60 m by 60 m by 30 m a
Page 107 and 108: Table 17-12 Detailed Resource Break
Page 109 and 110: Table 17-13 Indicated Mineral Resou
Page 111 and 112: Figure 17-7 Outline of Area of Indi
Page 113 and 114: The recoveries estimated for the fl
Page 115 and 116: grades were based upon the grades w
Page 117 and 118: Figure 18-1 Thor Lake Site Layout T
Page 119 and 120: Scott Wilson RPA recommends the use
Page 121 and 122: During discussions with the mine de
Page 123 and 124: Figure 18-4 Mine Layout Some of the
Page 125 and 126: Figure 18-5 Mine Development Schema
Page 127 and 128: Table 18-2 Development Tonnage Brea
Page 129 and 130: Until the crusher is in place and t
Page 131 and 132: Lateral Development The access decl
Page 133 and 134: Equipment will be selected based up
Page 135 and 136: Table 18-6 Estimated Electrical Loa
Page 137 and 138: VENTILATION The mine ventilation is
Page 139 and 140: for closing unused areas and for ch
Page 141 and 142: Mine Fan Horse Power Using the same
Page 143 and 144: Paste Fill System A paste fill syst
Page 145 and 146: Communications Mine communications
Page 147: completion of the 30 m to 50 m long
Page 151 and 152: The crushing plant is designed for
Page 153 and 154: Table 18-12 (Cont’d) Principal Pr
Page 155 and 156: Figure 18-9 Hydrometallurgical Plan
Page 157 and 158: The Pine Point hydrometallurgical f
Page 159 and 160: Decant pipeworks have been included
Page 161 and 162: • Development of pre-feasibility
Page 163 and 164: Design Basis The pre-feasibility le
Page 165 and 166: non-woven geotextile) to prevent da
Page 167 and 168: divert surface drainage away from r
Page 169 and 170: A high pressure (200 psi) compresse
Page 171 and 172: Fuel deliveries are assumed to be s
Page 173 and 174: Mill Supplies The key mill supplies
Page 175 and 176: Table 18-15 Surface Equipment Fleet
Page 177 and 178: Figure 18-10 Thor Lake Temporary Ba
Page 179 and 180: • Together with the unloading log
Page 181 and 182: it will be necessary to upgrade the
Page 183 and 184: Table 18-16 Hydrometallurgical Plan
Page 185 and 186: Table 18-17 Surface Mobile Equipmen
Page 187 and 188: Rare Earth FOB China* FOB China** P
Page 189 and 190: • loparite and eudialyte in alkal
Page 191 and 192: Table 18-18 Rare Earth supply - 200
Page 193 and 194: Table 18-20 Rare Earth Demand by Ap
Page 195 and 196: Table 18-22 Proposed New REO Projec
Page 197 and 198: in China. On this basis, Avalon is
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Determine Prices for Avalon’s Pro
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The balance of niobium supply is co
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epresenting about 18% of total zirc
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Table 18-25 Historic Chinese Export
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Figure 18-16 Tantalum Markets - 200
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the price for tantalum chemicals in
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Surface Hydrology The Thor Lake dra
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seven) have occurred more frequentl
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elative to uranium, the overall eff
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interviews conducted for the nearby
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Wildlife Early science-based wildli
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Other environmental permits/approva
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TAXES The NWT diesel tax has been i
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Table 18-31 Mine Capital Cost Estim
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Table 18-33 Surface Infrastructure
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Table 18-36 Indirect Cost Estimate
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Table 18-37 Contingency Allowance A
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Operating Cost Exclusions The opera
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Table 18-40 Underground Mine Cost S
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Table 18-41 Mine Cost Details Avalo
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Thor Lake Surface The Thor Lake sur
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Table 18-45 Sales and Marketing Cos
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Table 18-47 Rail Car Load Limits Av
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there will be no overhauls in the i
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Other supplies and freight will be
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Table 18-55 Hydrometallurgical Plan
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Table 18-56 Cash Flow Summary Techn
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The sensitivity of the base case 8%
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19. INTERPRETATION AND CONCLUSIONS
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• The Mineral Reserves, which hav
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20. RECOMMENDATIONS The authors of
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21. REFERENCES BCC Research (2009):
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MDN Inc (2010): News Release Melvil
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Wardrop Engineering Inc. (2009): Th
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23. CERTIFICATES OF QUALIFIED PERSO
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CERTIFICATE OF QUALIFIED PERSON I,
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CERTIFICATE OF QUALIFIED PERSON I,
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Section 416000 Section 416100 Secti
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Technical Report 43-101 - March 13,
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