NovaGold Reports Important Drill Results at the Bornite Deposit...........
posted on
Nov 10, 2011 12:17PM
•Donlin Gold, NovaGold's flagship project, successfully passed feasibility and has emerged as perhaps the most important gold development asset in the world today;
VANCOUVER, BRITISH COLUMBIA--(Marketwire - Nov. 10, 2011) - NovaGold Resources Inc. ("NovaGold" or the "Company") (TSX:NG)(NYSE Amex:NG) is pleased to announce results from its initial exploration drilling program on the Bornite target located on the recently consolidated 180,000-hectare Upper Kobuk Mineral Property located in the Ambler mining district of Northwest Alaska. This campaign not only confirmed previous drill results by Kennecott Exploration Company and Kennecott Arctic Company (collectively "Kennecott"), subsidiaries of Rio Tinto, but also expanded the known extent of the mineralization. Bornite is located approximately 26 kilometers southwest of the Arctic deposit which hosts a high-grade copper and zinc mineral resource1.
Verification drilling has encountered grades and thicknesses similar to those reported by Kennecott, which explored the property during the late 1950s and 1960s. Mineralization encountered showed very high-grade chalcocite and bornite mineralization with cobalt and precious metal mineralization surrounded by broad lower grade zones of chalcopyrite and distal pyrite.
In 2011, NovaGold focused initial drilling on verifying historical mineralized zones with a series of diamond drill holes ("DDHs"), designated as RC11-181 to 186, and then completed a series of exploration holes, designated as RC11-187 to 194, to test possible extensions of mineralization. The objectives of this program were twofold: 1) To complete sufficient verification drilling to support estimation of a 43-101 compliant mineral resource on the known area of mineralization; and 2) To further define the exploration potential on the property by extending mineralization and testing new target areas. The Company also carried out an initial deep dipole/dipole Induced Polarization ("IP") survey which showed highly promising results in defining stratigraphy and mineralization.
1 See NovaGold release of April14, 2011 "NovaGold Completes Preliminary Economic Assessment for Ambler Project."
Highlights of the NovaGold's 2011 campaign are as follows:
To view "Figure 1: Bornite Drill Hole Location Map" please click on the following link: http://media3.marketwire.com/docs/111110_NovaGold_fig.jpg
Initial exploration drilling was equally successful. Most importantly, exploration drilling on the east and northeast sides of the deposit encountered significant mineralization in DDH RC11-187 which drilled a continuous interval of 178 meters grading 3.9% copper included a very significant high-grade intersection of 34.7 meters grading 11.4% copper.
"DDH RC11-187 constitutes the best hole drilled to date on Bornite," said Rick Van Nieuwenhuyse, President and Chief Executive Officer of NovaGold. "The fact that it is a step-out, makes it even more encouraging. While further work is necessary to assess the extent of the Bornite deposit, these initial results continue to demonstrate the exceptionally high-grade nature of this important and evolving mineral district. Given the level of previous exploration in the district, we are confident that we can continue to identify high-grade mineralization with additional exploration drilling. Simply put, this project has the potential to evolve into one of the richest and most valuable poly-metallic districts in the world."
To view "Figure 2: Bornite Cross Section Map" please click on the following link: http://media3.marketwire.com/docs/111110_NovaGold_fig2.pdf
Significant intercepts are shown in the table below. A total of 11 drill holes were completed and the Company has received assays from the first five holes. Summaries of all the holes and location maps are available on the Company's website. The total meters drilled at Bornite are approximately 6,000 meters and the Company expects results from an additional six holes by the end of the year.
Table 1: Bornite Significant Drill Intervals | |||||||||
Depth from |
To | Core interval meters |
core interval feet |
Cu % |
Co % |
Au gpt |
Ag gpt |
Cu % meters |
|
DDH RC11-181 | 264.3 | 300.6 | 36.3 | 119.1 | 4.36 | - | - | - | |
including | *283.0 | 300.6 | 17.6 | 57.7 | 8.35 | 0.09 | 0.09 | 8.8 | |
372.8 | 388.0 | 15.2 | 50.0 | 1.58 | - | - | - | ||
410.4 | 454.0 | 43.6 | 143.0 | 1.01 | - | - | - | ||
536.1 | 563.3 | 27.2 | 89.1 | 1.87 | - | - | - | ||
4 intervals | 122.3 | 401.2 | 2.27 | - | - | - | 277.1 | ||
DDH RC11-182 | 168.6 | 245.9 | 77.3 | 253.6 | 1.85 | - | - | - | |
including | *212.0 | 230.9 | 18.9 | 62.0 | 3.43 | - | - | - | |
270.7 | 286.5 | 15.9 | 52.0 | 3.57 | - | - | - | ||
2 intervals | 93.2 | 305.6 | 2.14 | - | - | - | 199.3 | ||
DDH RC11-183 | 304.2 | 330.5 | 26.3 | 86.3 | 6.73 | - | - | - | |
including | *323.7 |
330.5 | 6.8 | 22.1 | 24.47 | 0.14 | 0.57 | 21.0 | |
1 interval | 26.3 | 86.3 | 6.73 | - | - | - | 177.2 | ||
DDH RC11-184 | 302.3 | 334.2 | 31.9 | 104.7 | 5.41 | - | - | - | |
including | *328.7 | 334.2 | 5.5 | 18.0 | 28.50 | 0.44 | 0.44 | 30.9 | |
1 interval | 31.9 | 104.7 | 5.41 | - | - | - | 173.1 | ||
DDH RC11-185 and 186 | results pending | ||||||||
DDH RC11-187** | 408.0 | 586.0 | 178.0 | 584.1 | 3.89 | - | - | - | |
including | *458.7 |
493.4 | 34.7 | 113.8 | 11.38 | 0.10 | 0.16 | 5.4 | |
1 interval | 178.0 | 584.1 | 3.89 | - | - | - | 692.5 | ||
DDH RC11-188 to 194 | results pending |
Footnotes to Drill Interval Table:
* | Internal higher grade interval. |
** | Three samples totalling 2.39 meters are capped at 40.0% Cu pending additional analyses of the 40.0% overlimits. |
The Ambler district consists of two contemporaneous and adjacent mineralized belts, the Devonian Ambler poly-metallic Volcanogenic Massive Sulfide ("VMS") belt hosting the Arctic deposit and the Devonian Bornite carbonate-hosted copper-cobalt belt hosting the Bornite deposit. Previous work in the district has focused on the Arctic deposit which lies approximately 26 kilometers to the northeast of the Bornite deposit. NovaGold announced the completion of a Preliminary Economic Assessment ("PEA") on the Arctic deposit in a press release dated April 14, 2011 indicating robust project economics.
Quality Control
The drill program and sampling protocol were managed by qualified persons employed by NovaGold. The diamond drill holes were typically collared at HQ diameter drill core and reduced to NQ diameter during the drilling process. Samples were collected using a 0.5-meter minimum length, three-meter maximum length and 1.5-meter average sample length. Drill core recovery averaged 95%. Three quality control samples (one blank, one standard and one duplicate) were inserted into each batch of 20 samples. The drill core was sawn, with half sent to ALS Chemex in Fairbanks for sample preparation and the sample pulps forwarded to ALS's North Vancouver facility for analysis. ALS Minerals in North Vancouver, B.C., Canada, is a facility certified as ISO 9001:2008 and accredited to ISO / IEC 17025:2005 from the Standards Council of Canada.
Qualified Person
Heather Brown, P.Geo, GIS Database Geologist for NovaGold, and a Qualified Person as defined by National Instrument 43-101, has reviewed the results of the drill program and confirmed that all procedures, protocols and methodologies used in the drill program conform to industry standards.