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

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excavations are included in the mine development costs but the purchase and installation of the crusher and ore conveyor are included in the mill capital cost estimate. Concentrator Concentrator capital costs were taken from the estimate by Melis based upon the costs factored against installed equipment cost. For presentation the fuel use during construction was deducted and moved into the “indirect” category and the contingency was deducted and added into the overall contingency for the project. Capital spares were also deducted and moved to a different category. A 1.8% adjustment was added to the loaded labour costs reflecting the NWT 2% payroll tax burden applicable to payroll and bonuses. A summary of the capital cost estimate is shown in Table 18-32. Table 18-32 Concentrator Capital Cost Estimate Avalon Rare Metals Inc. – Thor Lake Project C$ '000 Mill (TLP) 128,251 Tailings Facility (TLP) 9,093 Total 137,344 The Thor Lake tailings facility design was completed by Knight Piésold who provided the material quantities for the tailings area. Scott Wilson RPA has provided the unit cost estimates for the work to generate the cost estimate. The tailings facility will be constructed in two separate phases with the second phase of construction required when the operation is expanded. Surface Infrastructure and Equipment A surface equipment fleet has been developed for the TLP and is shown in Table 18-33. The surface equipment has been estimated as a mixture of new and used equipment. Equipment such as the grader and cranes, which will not see extensive heavy service, will be purchased used and are expected to be able to meet the operation’s requirements. Wherever possible the use of good used equipment for this support fleet would be evaluated and used in place of new units. In the case of the container forklifts, new units are proposed as these units are critical to the fast turnaround of the barges and regular movement of concentrate containers. This infrastructure includes all of the roads, yards, airstrip, camp, power and supplies storage needs for TLP including the materials handling requirements at Great Slave Lake. The camp has been estimated on the basis of a new camp and the power supply system is a new modular system designed by Finning and based on the Caterpillar 3516HD diesel generators. Technical Report 43-101 – March 13, 2011 Page 18-111 Prepared by Avalon Rare Metals Inc.
Table 18-33 Surface Infrastructure Capital Cost Estimate Avalon Rare Metals Inc. – Thor Lake Project C$ '000 Surface Equipment 9,597 Infrastructure 26,472 Total 36,069 Hydrometallurgical Plant The hydrometallurgical plant capital estimate has been prepared by Melis. The plant cost was based on the use of new equipment and the initial plant capacity is generally suitable for the expanded production case as the equipment and processes are not amenable to the use of parallel streams for the expanded case. An acid plant will be built at the site and the cost estimate for the acid plant is based on a quotation by a suphuric acid plant supplier. A capital estimate summary for the Pine Point site is shown in Table 18-34. The Pine Point tailings facility design was completed by Knight Piésold who provided the material quantities for the tailings area. Scott Wilson RPA provided the unit cost estimates to generate a cost estimate for the facility. The Pine Point tailings facility is planned to be constructed in two phases to reduce the initial capital outlay. Phase 1 of the construction is required for the commencement of operations Table 18-34 Hydrometallurgical Plant Capital Cost Estimate Avalon Rare Metals Inc. – Thor Lake Project C$ '000 Hydrometallurgical Plant 194,392 Surface Equipment (Pine Point) 5,173 Tailings (Pine Point) 22,829 Acid plant 90,708 Total 313,102 A mobile fleet will be required at Pine Point to support the hydrometallurgical plant operations and for the transportation of goods to and from the dock throughout the year, In this area as well Scott Wilson RPA recommends that good used equipment be sought for the service units which are required but are not full time production units. Technical Report 43-101 – March 13, 2011 Page 18-112 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
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Assay Statistics for Upper Zone* *
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CUT-OFF GRADE A previous public res
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underneath for SG measurement purpo
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Figure 17-4 Density Measurements AL
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was equal to 60 m by 60 m by 30 m a
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Table 17-12 Detailed Resource Break
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Table 17-13 Indicated Mineral Resou
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Figure 17-7 Outline of Area of Indi
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The recoveries estimated for the fl
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grades were based upon the grades w
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Figure 18-1 Thor Lake Site Layout T
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Scott Wilson RPA recommends the use
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During discussions with the mine de
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Figure 18-4 Mine Layout Some of the
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Figure 18-5 Mine Development Schema
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Table 18-2 Development Tonnage Brea
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Until the crusher is in place and t
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Lateral Development The access decl
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Equipment will be selected based up
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Table 18-6 Estimated Electrical Loa
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VENTILATION The mine ventilation is
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for closing unused areas and for ch
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Mine Fan Horse Power Using the same
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Paste Fill System A paste fill syst
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Communications Mine communications
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completion of the 30 m to 50 m long
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HEALTH AND SAFETY All crew will be
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The crushing plant is designed for
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Table 18-12 (Cont’d) Principal Pr
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Figure 18-9 Hydrometallurgical Plan
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The Pine Point hydrometallurgical f
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Decant pipeworks have been included
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• Development of pre-feasibility
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Design Basis The pre-feasibility le
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non-woven geotextile) to prevent da
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divert surface drainage away from r
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A high pressure (200 psi) compresse
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Fuel deliveries are assumed to be s
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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
Page 199 and 200: Determine Prices for Avalon’s Pro
Page 201 and 202: The balance of niobium supply is co
Page 203 and 204: epresenting about 18% of total zirc
Page 205 and 206: Table 18-25 Historic Chinese Export
Page 207 and 208: Figure 18-16 Tantalum Markets - 200
Page 209 and 210: the price for tantalum chemicals in
Page 211 and 212: Surface Hydrology The Thor Lake dra
Page 213 and 214: seven) have occurred more frequentl
Page 215 and 216: elative to uranium, the overall eff
Page 217 and 218: interviews conducted for the nearby
Page 219 and 220: Wildlife Early science-based wildli
Page 221 and 222: Other environmental permits/approva
Page 223 and 224: TAXES The NWT diesel tax has been i
Page 225: Table 18-31 Mine Capital Cost Estim
Page 229 and 230: Table 18-36 Indirect Cost Estimate
Page 231 and 232: Table 18-37 Contingency Allowance A
Page 233 and 234: Operating Cost Exclusions The opera
Page 235 and 236: Table 18-40 Underground Mine Cost S
Page 237 and 238: Table 18-41 Mine Cost Details Avalo
Page 239 and 240: Thor Lake Surface The Thor Lake sur
Page 241 and 242: Table 18-45 Sales and Marketing Cos
Page 243 and 244: Table 18-47 Rail Car Load Limits Av
Page 245 and 246: there will be no overhauls in the i
Page 247 and 248: Other supplies and freight will be
Page 249 and 250: Table 18-55 Hydrometallurgical Plan
Page 251 and 252: Table 18-56 Cash Flow Summary Techn
Page 253 and 254: The sensitivity of the base case 8%
Page 255 and 256: 19. INTERPRETATION AND CONCLUSIONS
Page 257 and 258: • The Mineral Reserves, which hav
Page 259 and 260: 20. RECOMMENDATIONS The authors of
Page 261 and 262: 21. REFERENCES BCC Research (2009):
Page 263 and 264: MDN Inc (2010): News Release Melvil
Page 265 and 266: Wardrop Engineering Inc. (2009): Th
Page 267 and 268: 23. CERTIFICATES OF QUALIFIED PERSO
Page 269 and 270: CERTIFICATE OF QUALIFIED PERSON I,
Page 271 and 272: CERTIFICATE OF QUALIFIED PERSON I,
Page 273 and 274: Section 416000 Section 416100 Secti
Page 275 and 276: Section 416600 Section 416700 Secti
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Section 417200 Section 417300 Secti
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Technical Report 43-101 - March 13,
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