Douay Gold Project
Overview & Highlights
After a series of drill campaigns by multiple owners the project was acquired by Aurvista Gold Corporation from Vior Inc. in 2011. More recently, Aurvista invested in the reprocessing of nearly all of the historic drill-core and data to establish a more comprehensive and cohesive property-wide database and updated geologic model. Aurvista filed an updated resource estimate in April 2017 and has expanded the Douay Gold Project to now cover a 40km of strike along the Casa Berardi Deformation Zone and total of 300+ km² within the prolific Abitibi Greenstone Belt.
- Located in one of the best mining jurisdictions in the world
- High grade gold lenses still intact and never mined
- Large bulk tonnage gold model & established resource
- Royalty free aside from 1% NSR that covers only a small fraction of the resource
- Over 300+ km2 (30,000+ ha) property package with district scale discovery opportunities
- Excellent infrastructure
- Several large operating mines within 150km
Location & Infrastructure
The Douay Gold Project is located in Quebec, Canada. The Project is approximately 2 hours north of Val-d’Or via Highway 109 with the exploration camp accessible via gravel road less than 10 minutes from the main highway.
The project benefits from existing infrastructure, which includes:
- HWY 109 leads right to the Project
- Hydro-Powerline (Powerline 6) runs right through the Project
- Full-service 30 person camp
- Core logging & storage facilities
- Rail within 50km (Matagami)
The Douay Gold Project covers more than 300 km², situated along the Casa Berardi Deformation Zone (“CBDZ”) within the prolific Abitibi Greenstone Belt (“AGB”). There are two distinct but overlapping geological signatures: a primary Volcanogenic Massive Sulphide (“VMS”) of Copper-Zinc affinities overprinted by a secondary structurally hosted gold system. The interpreted geological signature is similar to the 15+ million ounce Doyon-Bousquet-Laronde Mining Camp located 100 km S-SW of Douay, along the Cadillac Larder Lake Deformation Zone.
Douay consists of a northern corridor of fairly pristine, well preserved volcanic tuffs of felsic to intermediate compositions; the central 3 km wide Douay-Style Mineralization (“DSM”) corridor hosting the CBDZ with a mix of porphyries, basalts, felsic volcanic rocks and iron formations, and gold-hosted shear zones; and a southern corridor of mostly basalts with siliceous-chemical sediments and chlorite-sulphide bearing feeder-pipes, both typical of VMS systems. The volcanic stratigraphy trends in a NW-W to E-SE directions whereas the gold structures trend E-W. There are at least a dozen of these subparallel structures. Management believes there are additional higher grade zones and are linked by an extensive network of E-W, NW-SE and NE-SW structures in magnetic iron rich volcanic rocks, but non-magnetic sulphide bearing, hosting iron-carbonates alteration, porphyries and/or silica-rich alteration and/or sodium-rich alteration.
Alteration assemblages and micro-fracturing in brittle rocks hosting narrow veinlets of quartz-carbonate with pyrite are associated with higher gold values generally above 5 g/t gold over multi-metric intervals. Fractured syenites containing fine fracture filling pyrite in addition to disseminated pyrite, encompassing altered basalt fragment and magnetite-rich "iron formation" contains 100 ppb to 1 g/t gold over decametric to hectometric intervals.
The Project contains resources as listed in the table below:
|Mineralized Zone||Category||Metric Tonnes||Average Gold Grade (g/t)||Contained Gold (oz) (0.5 g/t cut-off grade)|
|Douay West (DW)||Inferred||4,468,000||2.36||339,000|
|Main Zone (MZ)||Inferred||311,000||1.55||15,000|
|Zone 10 (MZ10)||Inferred||1,815,000||1.38||80,000|
|Zone 20 (MZ20)||Inferred||3,565,000||0.71||81,000|
|Central Zone (CZ)||Inferred||510,000||1.20||20,000|
(Refer to NI-43-101 report filed April 11, 2017 at www.sedar.com)
1. The mineral resources above which are not mineral reserves do not have demonstrated economic viability. The estimate of mineral resources may be materially affected by environmental, permitting, legal, title, taxation, socio-political, marketing, or other relevant issues.
2. The quantity and grade of reported inferred resources in this estimation are conceptual in nature and there has been insufficient exploration data to define these inferred resources as an indicated or measured category and it is uncertain if further exploration will result in upgrading them to an indicated or measured mineral resource category.
3. The mineral resource estimate and open pit optimization have been prepared without reference to surface rights or the presence of overlying natural constrains / public infrastructure.
4. The multiple open pit shells used are the ultimate-breakeven pit shell cones, which do not consider pit design or minimum mining width.
5. Figures may not total due to rounding.
The first gold discovery at the Douay Gold Project was made by Inco Ltd. in 1976. From 1976 to 2017 a total of ~222,000 metres of drilling has been completed, including ~66,000 metres by Aurvista (2011-2017), see the table below:
|Company||Year||Drill Holes||Total Metres||Cumulative Drill Holes||Cumulative Metres|
|Inco, SOQUEM and Aurizon||1976 to 1999||468||122,906||468||122,906|
|Vior||2004 to 2010||107||32,785||575||155691|
|Aurvista||2011 to 2017||182||66,142||757||221,833|
|TOTAL||1976 to 2017||757||221,833|
The Douay Gold Project hosts numerous high-grade gold occurrences within larger low-grade envelopes of mineralization. Visible gold often occurs in quartz micro-veinlets and the table below highlights some of the high-grade results reported from previous drill campaigns:
|Drill Highlights from Previous Drill Campaigns|
|DDH# (Year Drilled)||Location||Gold Grade (g/t)||Intercept (m)|
|D-102 (2005)||Douay West||15.01||8.20|
|DO-12-97 (2012)||Adam Porphyry||1.07||183.00|
2017 Spring - Summer Drilling Campaign
Figure 1: Central Segment of Porphyry System Drill Highlights
Figure 2: Aurvista Resource Zones Map with 2017 Drill hole Locations
Exploration Upside & Go-forward Plans
It now appears from the current re-evaluation of the Douay geology that Douay has markings similar to the massive gold carrying semi-massive sulphide lenses of the 15+ million ounce Doyon-Bousquet-LaRonde Gold-Base Metal Complex located 100 km to the SW. Aurvista believes there is potential for significantly more gold and base metal mineralization to be discovered and delineated at Douay.
Aurvista’s exploration programs going forward will focus on two key objectives: (1) Expanding the known resource zones and delineating ounces with a focus on the higher-grade feeder structures within the Adam Creek Gold Deposit (Porphyry Zone), which is still open in multiple directions and at depth; and (2) testing new discovery targets within the district-scale 305 km² project package.
Objective 1: The Company plans to complete ~20,000 metres of additional drilling in 2017 that will include step-out drill-holes as well as drilling focused on higher-grade SE plunging gold lenses within the Porphyry Zone.
Objective 2: The Company will complete project-wide geological mapping, prospecting and sampling with additional geophysical surveys during July and August 2017. Following the summer exploration program, Aurvista will target new gold discoveries with a planned 10,000 metres of exploration drilling in the fall.
Communities and the Environment
Aurvista Gold Corporation understands and appreciates the shared value that mining can bring but also understands its risks and the importance of responsible and sustainable development. Our Company strives to maintain the highest standards of environmental protection and community engagement throughout the exploration and potential development process. We are focused on bringing shared value to the Northern Abitibi and all of our stakeholders.
Unless otherwise stated, the scientific and technical data contained within this website was reviewed and approved by Jean Lafleur, M. Sc, P. Geo., the Company’s Technical Advisory Committee Member, a non-independent qualified person to Aurvista Gold Corp. who is responsible for ensuring that the geologic information provided on this website is accurate and acts as a “qualified person” under National Instrument 43-101 Standards of Disclosure for Mineral Projects.