Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI000000000911

Record: MDI000000000911

General

Commodities

Primary Commodities: Copper, Silver

Secondary Commodities: Nickel, Cobalt

Location

Township or Area: BMA 527 864

Latitude: 52° 50' 32.52"    Longitude: -86° 54' 7.24"

UTM Zone: 16    Easting: 506600   Northing: 5854740    UTM Datum: NAD83

Resident Geologist District: Thunder Bay North

NTS Grid: 43D15SW

Point Location Description: Drill collar located with GPS from 2010 Tribute Minerals drill program.

Location Method: Based on Assessment

Access Description: Located approximately 30km SE of Webequie, 40km W of Noront's Eagle's Nest deposit in James Bay Lowlands of NW Ontario. Camp was established on Billinger Lake. Access to camp via fixed wing float/ski plane; and helicopter is required to access to the drill hole locations. Snowmobile trails from Webequie have been used in the winter monthes for access.

Exploration History

2008: claims were staked by Goldeye Explorations Ltd. In March 2008, Goldeye Exploration Ltd. commissioned Geotech Ltd. to fly 1988 line km of VTEM was flown over 6 survey blocks, covering 53 claims. In July, Goldeye transferred the claims to Tribute Minerals Inc. In 2009, 2960 line km of ZTEM was flown over 11 blocks. In Oct of 2009, ground magnetic and VLF surveys over 3 claims delineated an E-W grenting magnetic anomaly (Sunday Anomaly). 2009: In October and November, a 7 DDH program totalling 1287 m was completed to test conductors over a strike length of 1.4 km. 2010: Tribute signed a memorandum of understanding with the Webequie First Nation. A further 24 km of strike length were staked as a result of early drilling success. An 8 DDH program totalling 1877 m was completed in February and March. During the spring, a VTEM airborne survey and surveying of eight holes drilled in the winter 2010 program were completed. 2011: Tribute Minerals changed their name to Aurcrest Gold Inc.

Assessment Work on File

Geology

Province: Superior

Subprovince: Sachigo

Terrane: North Caribou

Geological Age: Archean  

Geology Comments

Oct 22, 2010 (N Bennett) - The James Bay Lowland Property is located in the Archean-aged Superior Province of Northern Ontario, which has been stable tectonically since ca. 2.6 Ga and represents the core of the Canadian Shield. It is divided into distinct subprovinces based on lithology, structure, tectonic and metamorphic conditions. The present amalgamation of these subprovinces is thought to be a collection of small Mesoarchean continental fragments and Neoarchean oceanic plates which have been aggregated during a series of accretionary processes spanning ~40 Ma through five separate accretionary orogenic events (Percival et al., 2006). This initially resulted in a tectonic regime dominantly north-verging in the southern half of the province and south-verging in the far north. This regime then became a dextral transgressive regime that led to the formation of large E-W trending strike-slip faults (Davis, 2003). Post-tectonic granitic magmatism spans the period 2.68-2.64 Ga, and deep crustal high-grade metamorphism is recorded at 2.66-2.62 Ga (Helmstaedt and Harrap, 2000). The resulting terrane distribution is that of large-scale east-west trending belts of alternating granite-greenstone and metasedimentary subprovinces. Alternate theories based on cross-terrane lithologic overlaps suggest that the present terrane distribution may represent the effect of late differential uplift of a complexly layered accretionary complex (Davis, 2003). The James Bay Lowland claim blocks lie within the subprovince known as the Sachigo Superterrane. The Sachigo Superterrane is composed of old plutonic rocks of the ~3.0 Ga North Caribou Terrane that may have acted as a protocontinental nucleus around which other terranes accreted during assembly of the Superior Province (Percival et al., 2006). Early (2.98-2.85 Ga) minor mafic to ultramafic rocks associated with the North Caribou Terrane have been interpreted as mainly platformal or rift-type sequences (Percival et al., 2006), with a later (2.85-2.71 Ga) contribution of arc-related material. Continental arc magmatism caused severe reworking at 2.75-2.70 Ga (Percival and Easton, 2007). Central portions of the Terrane underwent plutonic intrusion (2.74-2.70 Ga), remnants of which are caught up and preserved in younger magmatism. Overall, the North Caribou terrane was reworked sporadically over a 300 Ma period.

Jul 18, 2014 (Therese Pettigrew) - Sulphide-bearing core intersections contained variable amounts of pyrrhotite and pyrite +/- chalcopyrite, extensively cut by granitic dykes, and associated with altered magnetic pyroxenitic and amphiboliitc rocks that appear to be sandwiched between highly deformed sections of granitic gneiss. The property geology is interpreted to be E-W trending and subvertically dipping, consistent with the regional magnetic patterns (Boyd, 2010 – AFRI 20000004649).

Lithology

Mineralization

Mineralization Comments

Aug 31, 2012 (N Bennett) - Holes SB-10-13 and SB-10-14 were drilled from the same drill collar location. Both holes were drilled at azimth 0 and dips were -60 and -85 respectively and depths of 537 and 557 feet. Assay values from SB-10-13 from 40.5m to 41.4m = 1.16% Cu and 10.8 g/t Ag; from 81.4m to 83.2m = 0.19% Cu and 2.7 g/t Ag. In SB-10-14 from 155.2m to 156.9m values reached 0.18% Cu and 5.1 g/t Ag. Other drill locations: 16U 507799.998, 5854899.999- Mineralization occurs from 99.4m to 114.6m ranging 5-30% (disseminated to semi-massive), occuring with altered magnetite bearing peridotitic layers, from 98.8m to 102.4m Cu=0.31% and Ni = 0.02%. 16U 507500 5854850.001- Returned an assay of 0.16% Cu and 1.2 g/t Ag from 65.9 m top 66.8 m down hole. 16U 507900.003 5854900.005- Mineralization is from 313.5 ft to 316.25 ft. Massive to network textured Po with interstitial Mg and coarse blebby and disseminated Cpy in lower half of zone, strong Chl alteration exists. From 95.5-96.4m = massive sulphide with an assay value of 0.50% Cu and 0.12 % Ni. From 147.3m to 148.5m = 10% sulphides. 16U 506659.999 5854619.999- Drill hole SB-10-09 reported significant Cu, Co, and Ag values grading 1.05% Cu, 0.06% Co, and 8.9 g/t Ag from 207.9m to 209.8m down hole. 16U 506660.002 5854740.003- Mineralizaton intersected in hole SB-09-01 exists within peridotite/pyroxenite interbanded with granitic dykes and gneiss. Mineralization is in the form of semi-massive sulphides 20-25% py, po, cpy, and mgnt. Assays from 95.9 m- 96.3m = 1.2% Cu and 0.03% Ni. In hole SB-09-02 from 59.2m to 61.4m = 0.31% Cu and 0.03 % Ni. 16U 506099.998 5854689.998- Assay value of 0.21% Cu and 2.8 g/t Ag was returned from 89.0 m to 90.2 m.

Jul 18, 2014 (Therese Pettigrew) - Results from the fall 2009 drill program include the following assays: DDH SB-09-01 (95.9-96.3 m): 1.2% Cu, 0.03% Ni DDH SB-09-02 (59.2-61.4 m): 0.31% Cu, 0.03% Ni DDH SB-09-05 (95.4-96.6 m) : 0.5% Cu, 0.12% Ni DDH SB-09-07 (98.8-102.4 m) : 0.31% Cu, 0.02% Ni The sulphide mineralization of the intersections consists predominantly of narrow sections of stringer to semi-massive to massive banded pyrrhotite with lesser pyrite interspersed with blebs and disseminations of chalcopyrite hosted within pyroxenitic ultramafic rocks . The Sunday Anomaly lies within an interpreted major regional east-west magnetic trend that stretches for 24 km. Tribute considers that this trend is favourable for hosting magmatic massive sulphide-type mineralization similar to that discovered at the Eagle’s Nest Ni-Cu-PGE deposit to the east of the property (Boyd, 2010 – AFRI 20000004649).

Mineral Record Details

References

Map - Geological series, Operation Winisk Lake, Winisk Lake, District of Kenora (Patricia Portion)

Publication Number: P0716 Scale: 1:126,720    Date: 1997

Author: Thurston P.C., Sage R.P., Siragusa G.M., Stott G.M.

Publisher Name: Ontario Dept. of Mines and Northern Affairs

Location:

Map - Winisk Lake, geological compilation series, Kenora District

Publication Number: M2287 Scale: 1:253,440    Date: 1974

Author: Thurston P.C., Siragusa G.M., Sage R.P., Riley R.A.

Publisher Name: Ontario Division of Mines

Location:

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For detailed information regarding this mineral record please contact the Thunder Bay North Resident Geologist District Office