Corvus Gold Continues Expanding Yellowjacket High-Grade Gold & Silver Zone, with Discovery of New Vein Systems, North Bullfrog Project, Nevada
NB-13-347 - 85 metres @ 1.6 g/t Gold (including 13.8 metres of 7.2g/t
NB-13-230 - 172 metres @ 0.45 g/t Gold (including 26 metres of 1.2g/t Gold)
TSX: KOR OTCQX: CORVF
VANCOUVER, Sept. 5, 2013 /PRNewswire/ - Corvus Gold Inc. ("Corvus" or the "Company") - (TSX: KOR, OTCQX: CORVF) announces assay results from two core holes and three reverse circulation (RC) holes in the Yellowjacket Zone at the North Bullfrog Project, Nevada. The drill results from the Yellowjacket Zone have identified new high-grade gold vein systems and expand near-surface mineralization along trend to the North increasing the projects "starter pit" potential.
Complete assay results from core drill hole NB-13-347 (partially announced NR13-17, August 6, 2013) was 84.8 metres of 1.6 g/t gold and 10.1 g/t silver including the previously reported intercept of 7.2 g/t gold and 21.0 g/t silver over 13.8 metres (Figure 1). Drill hole NB-13-347 represents a 260 metre step out to the north of the original discovery hole NB-12-138. Significantly, hole NB-13-347 intersected a new high-grade vein system where drilling to date has now outlined four distinct vein systems within the overall 100-150 metre wide, north, northwest trending Yellowjacket Zone.
In addition, core hole NB-13-348, drilled on the same section as NB-13-347, returned an intercept of 61.3 metres of 0.7 g/t gold (Figure 1). Core holes NB-13-353 and NB-13-354, located 360 metres north of the discovery hole NB-12-138, both encountered broad zones of veining with similar characteristics as hole NB-13-347 (assays are pending).
RC hole NB-13-230, which represents a 500 metre step out to the north from the 2012 discovery hole returned 172.2 metres of 0.45 g/t gold including 25.9m of 1.2 g/t gold. Significantly some intervals returned high silver to gold ratios indicating that the hole crossed Yellowjacket-style vein mineralization (Figure 1, Table 1). The gold mineralization at the bottom of the hole and represents a significant increase in the grade of the alteration style mineralization and has been followed up with core hole NB-13-350.
Assay results from NB-13-347 and NB-13-230 along with core from holes NB-13-353 and 354 appear to have intersected an entirely new vein system of gold mineralization. The new vein system appears to be trending north-westerly from the Yellowjacket Zone towards North Sierra Blanca and could be indicating a broadening of the high-grade zone to the North (Figure 1). This new high-grade gold system remains open to the north, south and at depth and lies west of the other three distinct vein systems.
Drill road construction and RC grid drilling has recently intersected other vein systems to the west of Yellowjacket opening up more potential for expanding the high-grade feeder system under the existing Sierra Blanca deposit.
RC holes NB-13-225 and 229 are vertical holes that were drilled in the horst block between an east-dipping fault and a west-dipping vein system. Neither hole encountered vein mineralization but both holes encountered very broad zones of the disseminated, low-grade mineralization that surrounds the high-grade vein systems (Figure 1, Table 1).
Jeff Pontius, Chief Executive Officer, states: "The continued encouraging results from the Yellowjacket Zone are now defining a large and expanding zone of shallow, much higher grade, open pit, heap leach material for the initial phase of mining at North Bullfrog. In addition the discovery of additional high-grade veins over a broad area highlights the potential for the high-grade system to grow in scale to that of the +2 million ounce Bullfrog Mine located to the south of the project. These ongoing results are outlining what could be a major new Nevada high-grade gold discovery that could greatly enhance Corvus shareholder value."
|Table 1: Significant intercepts* from recent core holes at Yellowjacket.|
|including||182.9||208.8||25.9||1.17||1.38||Ended in mineralization|
|NB-13-347||52.6||137.4||84.8||1.60||10.08||Azimuth 90; dip 80|
|NB-13-348||99.2||160.5||61.3||0.72||3.90||Azimuth 90; dip 40|
|*Intercepts calculated with 0.1g/t cutoff and up to 1.7m internal waste for Core and 3m for RC.|
About the North Bullfrog Project, Nevada
Corvus controls 100% of its North Bullfrog Project, which covers approximately 70 km² in southern Nevada just north of the historic Bullfrog gold mine formerly operated by Barrick Gold Corporation. The property package is made up of a number of leased patented federal mining claims and 758 federal unpatented mining claims. The project has excellent infrastructure, being adjacent to a major highway and power corridor. The Company's independent consultants completed a robust positive Preliminary Economic Assessment on the existing resource in June 2013.
The project currently includes numerous prospective gold targets with four (Mayflower, Sierra Blanca, Jolly Jane and Connection) containing an estimated oxidized Indicated Resource of 36.7 Mt at an average grade of 0.26 g/t gold for 308,000 ounces of gold and an oxidized Inferred Resource of 220.4 Mt at 0.18 g/t gold for 1,289,000 ounces of gold (both at a 0.1 g/t gold cutoff), with appreciable silver credits. Unoxidized Inferred mineral resources are 221.6 Mt at 0.19 g/t for 1,361,000 ounces of gold (at a 0.1 g/t gold cutoff).
Mineralization occurs in two primary forms: (1) broad stratabound bulk-tonnage gold zones such as the Sierra Blanca and Jolly Jane systems; and (2) moderately thick zones of high-grade gold and silver mineralization hosted by structural zones with breccias and quartz-sulphide vein stockworks such as the Mayflower and Yellowjacket targets. The Company is actively pursuing both types of mineralization.
A video of the North Bullfrog project showing location, infrastructure access and 2010 winter drilling is available on the Company's website at http://www.corvusgold.com/investors/video/. For details with respect to the assumptions underlying the current resource estimate and preliminary economic analysis, see the technical report entitled "Technical Report and Preliminary Economic Assessment for the North Bullfrog Project, Bullfrog Mining District, Nye County, Nevada" dated June 4, 2013 and available under the Company's profile at www.sedar.com.
Qualified Person and Quality Control/Quality Assurance
Jeffrey A. Pontius (CPG 11044), a qualified person as defined by National Instrument 43-101, has supervised the preparation of the scientific and technical information (other than the resource estimate) that form the basis for this news release and has approved the disclosure herein. Mr. Pontius is not independent of Corvus, as he is the CEO and holds common shares and incentive stock options.
Mr. Gary Giroux, M.Sc., P. Eng (B.C.), a consulting geological engineer employed by Giroux Consultants Ltd., has acted as the Qualified Person, as defined in NI 43-101, for the Giroux Consultants Ltd. mineral resource estimate. He has over 30 years of experience in all stages of mineral exploration, development and production. Mr. Giroux specializes in computer applications in ore reserve estimation, and has consulted both nationally and internationally in this field. He has authored many papers on geostatistics and ore reserve estimation and has practiced as a Geological Engineer since 1970 and provided geostatistical services to the industry since 1976. Both Mr. Giroux and Giroux Consultants Ltd. are independent of the Company under NI 43-101.
The work program at North Bullfrog was designed and supervised by Russell Myers (CPG 11433), President of Corvus, and Mark Reischman, Corvus Nevada Exploration Manager, who are responsible for all aspects of the work, including the quality control/quality assurance program. On-site personnel at the project log and track all samples prior to sealing and shipping. Quality control is monitored by the insertion of blind certified standard reference materials and blanks into each sample shipment. All resource sample shipments are sealed and shipped to ALS Chemex in Reno, Nevada, for preparation and then on to ALS Chemex in Reno, Nevada, or Vancouver, B.C., for assaying. ALS Chemex's quality system complies with the requirements for the International Standards ISO 9001:2000 and ISO 17025:1999. Analytical accuracy and precision are monitored by the analysis of reagent blanks, reference material and replicate samples. Finally, representative blind duplicate samples are forwarded to ALS Chemex and an ISO compliant third party laboratory for additional quality control. McClelland Laboratories Inc. prepared composites from duplicated RC sample splits collected during drilling. Bulk samples were sealed on site and delivered to McClelland Laboratories Inc. by ALS Chemex or Corvus personnel. All metallurgical testing reported here was conducted or managed by McClelland Laboratories Inc.
About Corvus Gold Inc.
Corvus Gold Inc. is a resource exploration company, focused in Nevada, Alaska and Quebec, which controls a number of exploration projects representing a spectrum of early-stage to advanced gold projects. Corvus is focused on advancing its 100% owned Nevada, North Bullfrog project towards a potential development decision and continuing to explore for new major gold discoveries. Corvus is committed to building shareholder value through new discoveries and leveraging noncore assets via partner funded exploration work into carried and or royalty interests that provide shareholders with exposure to gold production.
On behalf of
Corvus Gold Inc.
(signed) Jeffrey A. Pontius
Jeffrey A. Pontius,
Chairman and Chief Executive Officer
Cautionary Note Regarding Forward-Looking Statements
This press release contains forward-looking statements and forward-looking information (collectively, "forward-looking statements") within the meaning of applicable Canadian and US securities legislation. All statements, other than statements of historical fact, included herein including, without limitation, statements regarding the anticipated content, commencement and cost of exploration programs, anticipated exploration program results, the discovery and delineation of mineral deposits/resources/reserves, the potential for any mining or production at North Bullfrog, the potential for the identification of multiple deposits at North Bullfrog, the potential for a low-cost run-of-mine heap leach operation at North Bullfrog, the potential for there to be a low strip ratio in connection with any mine at North Bullfrog, the potential for the existence or location of additional high-grade veins, the proposed completion of a PEA for the North Bullfrog project, the potential for additional resources to be located between certain of the existing deposits, the potential for the Company to secure or receive any royalties in the future, business and financing plans and business trends, are forward-looking statements. Although the Company believes that such statements are reasonable, it can give no assurance that such expectations will prove to be correct. Forward-looking statements are typically identified by words such as: believe, expect, anticipate, intend, estimate, postulate and similar expressions, or are those, which, by their nature, refer to future events. The Company cautions investors that any forward-looking statements by the Company are not guarantees of future results or performance, and that actual results may differ materially from those in forward looking statements as a result of various factors, including, but not limited to, variations in the nature, quality and quantity of any mineral deposits that may be located, variations in the market price of any mineral products the Company may produce or plan to produce, the Company's inability to obtain any necessary permits, consents or authorizations required for its activities, the Company's inability to produce minerals from its properties successfully or profitably, to continue its projected growth, to raise the necessary capital or to be fully able to implement its business strategies, and other risks and uncertainties disclosed in the Company's latest interim Management Discussion and Analysis and filed with certain securities commissions in Canada. All of the Company's Canadian public disclosure filings may be accessed via www.sedar.com and readers are urged to review these materials, including the technical reports filed with respect to the Company's mineral properties.
Cautionary Note Regarding References to Resources and Reserves
National Instrument 43 101 - Standards of Disclosure for Mineral Projects ("NI 43-101") is a rule developed by the Canadian Securities Administrators which establishes standards for all public disclosure an issuer makes of scientific and technical information concerning mineral projects. Unless otherwise indicated, all resource estimates contained in or incorporated by reference in this press release have been prepared in accordance with NI 43-101 and the guidelines set out in the Canadian Institute of Mining, Metallurgy and Petroleum (the "CIM") Standards on Mineral Resource and Mineral Reserves, adopted by the CIM Council on November 14, 2004 (the "CIM Standards") as they may be amended from time to time by the CIM.
United States shareholders are cautioned that the requirements and terminology of NI 43-101 and the CIM Standards differ significantly from the requirements and terminology of the SEC set forth in the SEC's Industry Guide 7 ("SEC Industry Guide 7"). Accordingly, the Company's disclosures regarding mineralization may not be comparable to similar information disclosed by companies subject to SEC Industry Guide 7. Without limiting the foregoing, while the terms "mineral resources", "inferred mineral resources", "indicated mineral resources" and "measured mineral resources" are recognized and required by NI 43-101 and the CIM Standards, they are not recognized by the SEC and are not permitted to be used in documents filed with the SEC by companies subject to SEC Industry Guide 7. Mineral resources which are not mineral reserves do not have demonstrated economic viability, and US investors are cautioned not to assume that all or any part of a mineral resource will ever be converted into reserves. Further, inferred resources have a great amount of uncertainty as to their existence and as to whether they can be mined legally or economically. It cannot be assumed that all or any part of the inferred resources will ever be upgraded to a higher resource category. Under Canadian rules, estimates of inferred mineral resources may not form the basis of a feasibility study or prefeasibility study, except in rare cases. The SEC normally only permits issuers to report mineralization that does not constitute SEC Industry Guide 7 compliant "reserves" as in-place tonnage and grade without reference to unit amounts. The term "contained ounces" is not permitted under the rules of SEC Industry Guide 7. In addition, the NI 43-101 and CIM Standards definition of a "reserve" differs from the definition in SEC Industry Guide 7. In SEC Industry Guide 7, a mineral reserve is defined as a part of a mineral deposit which could be economically and legally extracted or produced at the time the mineral reserve determination is made, and a "final" or "bankable" feasibility study is required to report reserves, the three-year historical price is used in any reserve or cash flow analysis of designated reserves and the primary environmental analysis or report must be filed with the appropriate governmental authority.
Caution Regarding Adjacent or Similar Mineral Properties
This news release contains information with respect to adjacent or similar mineral properties in respect of which the Company has no interest or rights to explore or mine. The Company advises US investors that the mining guidelines of the US Securities and Exchange Commission (the "SEC") set forth in the SEC's Industry Guide 7 ("SEC Industry Guide 7") strictly prohibit information of this type in documents filed with the SEC. Readers are cautioned that the Company has no interest in or right to acquire any interest in any such properties, and that mineral deposits on adjacent or similar properties are not indicative of mineral deposits on the Company's properties.
This press release is not, and is not to be construed in any way as, an offer to buy or sell securities in the United States.
SOURCE Corvus Gold Inc.
Image with caption: "Figure 1: Location of Yellowjacket drill holes. Red collars and traces indicate holes reported in this press release. Blue indicates assays are pending. Significant mineralized faults are shown in dark red. For a more general location of Yellowjacket see Figure 2. (CNW Group/Corvus Gold Inc.)". Image available at: http://photos.newswire.ca/images/download/20130905_C4469_PHOTO_EN_30427.jpg