| Highlights include: |
NB-12-183: 49 metres of 1.9 g/t gold with 43 g/t Silver
including 1.7 metres of 13.1 g/t gold with 549 g/t Silver |
TSX: KOR OTCQX: CORVF
VANCOUVER, Nov. 28, 2012 /PRNewswire/ - Corvus Gold Inc. ("Corvus" or the "Company") - (TSX: KOR, OTCQX: CORVF) announces the latest assays from the first hole of the 2012 Phase II Yellow Jacket drill program at the North Bullfrog Project, Nevada. The four hole program was designed to further identify and delineate the bonanza grade feeder system identified earlier in 2012 in hole NB-12-138 which returned 72.4 metres @ 1.74 g/t gold and 98.7 g/t silver including 4.3 metres @ 20 g/t gold and 1,519 g/t silver.
The most recent results, Hole NB-12-183, intersected 49 metres @ 1.9 g/t gold and 43 g/t silver including 1.7m @ 13.1 g/t gold and 549 g/t silver (Table 1).
The Yellow Jacket high-grade, fault controlled, gold and silver mineralization has been encountered over a strike length of approximately 700 metres and remains open. 3D IP imaging has highlighted a number of other structural zones with high-grade potential. Aggressive follow-up drilling at several other targets is expected to commence early 2013.
During the most recent program, which commenced in early October, 780 metres of core were drilled in four holes. Three of the four holes hit significant vein mineralization, which remains open to the north and at depth. All vein intersections to date are within 150 metres of the surface (which could represent open pit mining depths) with quartz veins widening at depth (Figure 2) and have not been included in the current North Area resource. The silver to gold ratio of holes NB-12-138 & NB-12-183 is distinctly higher than that of the overall North Bullfrog resource estimate and could represent a major new silver discovery in the district which could benefit the overall project financing. Assays for the remainder of hole NB-12-183 and the other three holes are pending at this time.
Table 1
Significant New Intercepts* from Phase II 2012 Yellow Jacket Drilling
| Hole ID |
From
(m) |
To (m) |
Interval
(m) |
Gold
(g/t) |
Silver
(g/t) |
| NB-12-183 |
80.3 |
128.9 |
48.7 |
1.9 |
43 |
| including |
91.9 |
102.3 |
10.4 |
4.7 |
119 |
| including |
99.1 |
100.8 |
1.7 |
13.1 |
549 |
| including |
119.5 |
125.9 |
6.3 |
3.6 |
85 |
| including |
121.0 |
124.0 |
3.1 |
5.7 |
72 |
| NB-12-183 |
137.4 |
138.8 |
1.4 |
1.2 |
3 |
*Intercepts are approximate true width and are
calculated with 0.2 g/t gold cut-off and up to 0.7
metres of internal waste.
Jeff Pontius, Corvus CEO stated: "As we continue with the planned development of the South area Mayflower deposit targeting gold production in late 2014, these new high-grade gold and silver intercepts in the North area open the door for a very exciting new Nevada high-grade discovery. The recent intercepts confirming and extending the spectacular mineralization found in hole NB-12-138 along with the substantial quartz vein thicknesses in the following three holes are giving shape to a significant new discovery that could dramatically change both the North Bullfrog project and the overall Corvus story."
Yellow Jacket Vein System
The Yellow Jacket vein system represents a completely blind discovery of a previously unrecognized style of mineralization in the North Bullfrog District (Figure 1). Prior drilling in this area was focussed to the east in an area of historic prospect pits along the Liberator and Yellow Jacket Faults with RC hole NB-10-63 intersecting 10.7 metres @ 7.5 g/t gold and 6.5 g/t silver and core hole NB-12-126 intersecting 11.4 metres @ 4.9 g/t gold and 7.0 g/t silver. Core hole NB-12-127 (7.7 metres @ 2.4 g/t gold and 11.31 g/t silver) was designed to follow up on an interesting intersection in RC hole NB-11-91 (9.1 metres @ 2.07 g/t gold and 2.32 g/t silver) which was the first time quartz vein related mineralization was encountered.
These results were used to target the hotter boiling zone part of the quartz vein system which led to the Yellow Jacket discovery in hole NB-12-138 (72.4 metres @ 1.74 g/t gold and 98.7 g/t silver including 4.3 metres @ 20 g/t gold and 1,519 g/t silver). Structural analysis based on oriented core indicates that the mineralization in NB-12-138 is controlled by the intersection of the Blind and Mai Faults (Figure 1). Holes NB-12-183 and NB-12-184 were designed to drill perpendicular to the plunge of that intersection (Figure 2) and successfully hit the target which appears to have an expanding vein system at depth.
In general the Yellow Jacket Zone of high-grade, fault controlled, gold and silver mineralization has been encountered over a strike length of approximately 700 metres and remains open. The mineralization is relatively shallow and could possibly be exploited as part of an expanded Sierra Blanca open pit, although to date this mineralization has not been included in the North Bullfrog resource estimate. The structural concepts developed and proven at Yellow Jacket are now being applied to generate targets on the rest of the North Bullfrog property. As part of this exploration program, Corvus is conducting an integrated high-grade targeting study that incorporates the new 3D IP geophysical data with new geological and structural mapping to further define and delineate these new targets. To date, the Company has defined three additional high-grade targets in the North Area that will be tested during the 2013 exploration program as well as the deep high-grade vein potential below the Mayflower deposit.
About the North Bullfrog Project, Nevada
Corvus controls 100% of its North Bullfrog Project, which covers approximately 43 km² in southern Nevada just north of the historic Bullfrog gold mine formerly operated by Barrick Gold. The property package is made up of a number of leased patented federal mining claims and 461 federal unpatented mining claims owned by the Company. 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 February 2012 (available at www.sedar.com).
The project currently includes numerous prospective gold targets, with four (Mayflower, Sierra Blanca, Jolly Jane and Connection) containing an estimated Indicated Resource of 15 Mt at an average grade of 0.37 g/t gold for 182,577 contained ounces of gold and an Inferred Resource of 156 Mt at 0.28 g/t gold for 1,410,096 contained ounces of gold (both at a 0.2 g/t gold cutoff), with appreciable silver credits. 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 in structural feeder 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 https://www.corvusgold.com/investors/video/.
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.
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,
Chief Executive Officer