Gryphon Gold Corporation Borealis Mining Company Canadian NI 43-101 Preliminary Assessment of the Mineral Resources of the Borealis Gold Project Located in Mineral County, Nevada, USA September 2, 2008 PreparedOther Agreements |
|
|
|
You are currently viewing: This Other Agreements involves
GRYPHON GOLD CORP | Borealis Mining Company | Gryphon Gold Corporation | Telesto Nevada, Inc. RealDealDocs™ contains millions of easily searchable legal documents and clauses from top law firms. Search for free - click here. |
|
|
|
|
Gryphon Gold
Corporation September 2, 2008 Prepared by: John R. Danio,
P.E. In association with: Roger C. Steininger,
Ph.D., CPG Steve Wolff
Steven D. Craig,
CPG Jaye T. Pickarts,
P.E. Kim Drossulis
(This page is intentionally left blank)
Gryphon Gold Corporation
i
ii
iii
iv v
vi
vii
viii
ix
x xi xii
xiii
xiv xv
xvi (This page is intentionally left blank) xvii
1.1 Introduction This preliminary assessment has been prepared for filing pursuant to National Instrument 43-101, Standards of Disclosure for Mineral Projects of the Canadian Securities Administrators in connection with the potential to develop a gold and silver resource at the Borealis project. Based on the cost estimates detailed in this report, a financial model has been created to demonstrate the economic potential of the project. The format and content of this report are intended to conform to Form 43-101F1, Technical Report. This assessment includes a combination of measured, indicated and inferred oxide and mixed mineralized material that occur in and around the Borealis property that are amenable to heap leach processing. Some of the resources used in this assessment are based on speculation that may or may not be realized in practice. The purpose of this assessment is to provide a conceptual capital and operating cost model for mine development for an operation that includes inferred material. The resource estimates used in this analysis were reported in Technical Report on the Mineral Resources of the Borealis Gold Project Located in Mineral County, Nevada , USA, April 28, 2008. The effective date of this preliminary assessment is 2 September, 2008. Based on the results of this study, it is evident that the Borealis Gold Project, should the measured, indicated and inferred resources prove to be present and the projected tons and grade and recovery are realized, represents an attractive project that should be pursued with further exploration, metallurgical testing and potential development. 1.1.1 Terms of Reference Borealis Mining Company (“BMC”) the wholly owned Nevada operating subsidiary of Gryphon Gold Corporation, is considering a resumption of mining and ore processing activities at the Borealis Mine Site. This preliminary assessment includes potential resources and was completed in an attempt to guide the exploration, expansion and development of the property in a manner that includes what is believed to be reasonably achievable resources. The principal operating permits have been granted for the proposed mining operation. Gold bearing material will be mined from existing and new pit areas and reclaimed from piles of previously processed ore and dump material. The material will be excavated by conventional 1 open pit mining equipment. Ore will be crushed, agglomerated with lime, and stacked on a lined pad where it will be leached to recover contained gold and silver. The Borealis Mine will produce 232,000 ounces of gold and 695,000 ounces of silver over four primary production years followed by one year of residual operations. Reclamation of the surface disturbance will be completed contemporaneously with mining operations as described in the Plan of Operations approved by the US Forest Service and the Reclamation permit from the Nevada Division of Environmental Protection. A bond will be posted with the US Forest Service to insure performance under the approved reclamation plan. 1.1.2 Principal Contributions to this Technical Report The principal author of this assessment is John R. Danio, P.E., Senior Associate, Telesto-Nevada, a Qualified Person for the purpose of Canadian NI 43-101, Standards of Disclosure for Mineral Projects. Mr. Danio was responsible for the development of capital and operating costs, mine plans and project revenue estimates. Contributing to this report is Dr. Roger C. Steininger, CPG, Consulting Geologist, a Qualified Person for the purpose of Canadian NI 43-101, Standards of Disclosure for Mineral Projects. Dr. Roger C. Steininger, CPG was the Chief Consulting Geologist in regard to geology, sampling, exploration, and mineral resource estimates. Mr. Steve Wolff prepared mineral resource estimates, reported in April 28, 2008. Additional input was provided by Knight Piésold and Co. (Knight Piésold) regarding environmental, permitting, and metallurgical issues. Mr. Kim Drossulis of Telesto-Nevada conducted mine planning based on the resource block models prepared by Mr. Wolff. Mr. Danio visited the property for one day on 5 March, 2008. Dr. Steininger visited the Borealis property numerous times from startup in 2003, through the present. Mr. Jaye Pickarts, P.E., Principal Metallurgical Engineer, Knight Piésold and Co., visited the Borealis property on several occasions during 2004, 2005, and 2006 for the duration of one day in each instance; he observed the district geologic setting and existing site conditions, and Mr. Pickarts reviewed selective reverse circulation drill-sample intercepts of the mineralization for metallurgical purposes only. Mr. Drossulis worked at Borealis as a mine engineer for Tenneco Minerals from 1981 to 1986 and has visited the property for one day on 5 March, 2008. 1.1.3 Basis of Study The scope of work for this assessment includes capital and operating cost models for the proposed mine resources including measured, indicated and inferred resources. These resources were reported in April 28, 2008 in Gryphon Gold Corporation Borealis Mining Company Canadian NI 43-101 Technical Report on the Mineral Resources of the Borealis Gold Project Located in Mineral County, Nevada, USA. 2 Results from the 2005-07 metallurgical test program (completed by McClelland Metallurgical Laboratories in Reno, Nevada) using material collected from development drilling and surface sampling have been utilized to support assumptions based on approximate production reports of 10 years of historical heap-leaching activities at the mine in the 1980s. The scope of work in this study includes sufficient engineering and planning to provide for an estimate of capital and operating costs in the accuracy range of +/- 15 percent. The major units used in this report are those commonly used in the United States: dry short tons of 2,000 pounds (tons), troy ounces per short ton (opt), miles, feet, etc. Where metric units are used, such is noted. 1.2 Project Description and Location The Borealis Gold Project is located in western Nevada, approximately 16 road miles southwest of the town of Hawthorne in the Walker Lane Mineral Belt and 12 miles northeast of the California border; see Figure 1.1 below. Hawthorne is 133 highway miles southeast of Reno and 314 highway miles northwest of Las Vegas.
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
AGREEMENTS / CONTRACTS
CLAUSES
| Get Email Updates |







