Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI000000000387

Record: MDI000000000387

General

Commodities

Primary Commodities: Gold

Secondary Commodities: Copper, Lead, Zinc, Silver

Location

Township or Area: Moss

Latitude: 48° 34' 13.87"    Longitude: -90° 47' 39.29"

UTM Zone: 15    Easting: 662712   Northing: 5382063    UTM Datum: NAD83

Resident Geologist District: Thunder Bay South

NTS Grid: 52B10SW

Point Location Description: Field Visit

Location Method: Field Visit with GPS

Access Description: Approximately 120 kms W of Thunder Bay. The property is accessed via Hwy #11 W of Kashabowie for 15.6 kms where the Swamp Road and West Hermia are taken for 16 kms to the eastern boundary of the Larose property.

Exploration History

1989: Noranda Exploration completed some glacial till sampling and limited trenching. 2003: R. Kwiatkowski (prospector) sampled rusty schist yielding very anomalous gold grades and recorded as the original discovery of the Larose showing then optioned to Freewest Resources Canada Inc. 2003-2004: Freewest Resources Canada Inc. carried out prospecting, line cutting, soil geochemistry, magnetometer and IP surveys, 30 DDH (2,742 m), trenching and geological mapping. May 2011: Freewest changed its name to Cliffs Chromite who then optioned the property to Viking Gold Exploration Inc. Dec 2011: Golden Share Ltd. JVs the property to acquire 50% and performed line cutting, magnetometer survey and soil geochemistry. 2012: Golden Share contracted SRK Consulting to complete a structural geology study. 2015: Viking Gold Exploration transferred the property to Kwiatkowski, R. who then transferred title to Tashota Resources. 2016: Tashota Resources completed trench mapping and 5 DDH, 240.49 m, DDH under the P1 trench. An airborne time-domain EM, magnetic and radiometric survey was flown by Prospectair Inc.

Assessment Work on File

Geology

Province: Superior

Subprovince: Wawa

Terrane: Wawa-Abitibi

Belt: Shebandowan

Geological Age: Archean  

Geology Comments

Nov 28, 2012 (B Schnieders) - The Larose property was optioned to Freewest Resources Canada Inc., whose prospecting and stripping programs led to the discovery of several gold zones or occurrences, including (from the southwest to the northeast): the J and R, Larose, the P, Central P, Snoopy, Porphyry and Northwest View. Combined, these zones make up the ‘Main Zone’, which has a strike length of 1500m (Freewest Resources Canada Inc. Press Release November 11,2003). Two separate shear zones are observed at the Larose occurrence at 48/70NW. The shear zones are up to 7m wide and hosted in thinly bedded, turbiditic wacke and siltstone. The sheared and altered, host metasedimentary rocks display quartz veining and stringers, chloritization, silicification, carbonatization, seritization and sulphidization. Fine-grained pyrite and pale visible gold occur in the milky-white to maroon quartz stringers. Sugary, recrystallized quartz veins and pods are up to 30 cm wide. A chip sample collected by the authors across 30cm of the altered metasedimentary host and quartz stringers assayed 70.6 g/t gold (Resident Geologist Files, Thunder Bay’s South District, Thunder Bay). A parallel shear zone on the same stripped outcrop is located 10m to the northwest of the aforementioned shear zone. The second shear zone is hosted in the ‘DE’ turbidites (southeast-younging). Bedding/cleavage relationships suggest tight to isoclinal folding is present. Here the shear zone is sulphide-rich. Galena, sphalerite, pyrite and arsenopyrite are associated with ‘rotten’ sugary quartz.

Lithology

Lithology Comments

Nov 27, 2017 (Therese Pettigrew) - The Sweet Spot and Sweet Spot 2 trenches are located at the contact between metasedimentary rocks and a relatively large (approximately 20 m wide) quartz-feldspar porphyry intrusion. The contact is not visible, but coincides with a depression, trending approximately 215 degrees, that likely marks a sheared contact. The quartz-feldspar porphyry intrusion, southeast of the contact, displays significant shearing, faulting and fracturing with variable alteration. Shears that parallel the primary foliation display quartz veining and contain disseminated sulphide mineralization. The Sweet Spot 2 trench displays the contact between a quartz-feldspar porphyry intrusion at the metasedimentary rocks. Deformation at this location is not as pervasive as the Sweet Spot trench (Puumala et al., 2017).

Mineralization

Mineralization Comments

Nov 28, 2012 (Shannon Zurevinski) - Gold mineralization is intimately related to a continuous high strain zone known as the Larose shear zone (LSZ), that has been traced over a minimum 4 km strike length. The LSZ trends to the northwest (050°), dips subvertically and attains a maximum width of about 25 metres. It is a sinistral shear zone that contains several gold zones occurring as discrete shoots within it. The LSZ hosts quartz veins, quartz vein stockwork and sulphide disseminations enclosed by greywacke host rocks characterized by heavy alteration. The quartz veins contain and wallrock disseminations comprise pyrite, galena, sphalerite, chalcopyrite, arsenopyrite and visible gold. The geological setting at Larose has been compared to that of the Malartic district of Quebec, which comprises host rocks of greywacke, quartz-feldspar porphyry and syenitic intrusive rocks.

Nov 27, 2017 (Therese Pettigrew) - From the Freewest 2004 drill program, DDH L04-23 shows gold mineralization primarily from 69-74 m within a feldspar-porphyry dyke that is crosscut by chalcopyrite-pyrite stringers (AFRI 20000007501).

Feb 28, 2017 (Q Unknown) - up to 13.4 g/t Au (news release 2010 Freewest) 2016: Although low assay values were obtained from the grab samples collected during the RGP site visit, some of the best historic diamond-drilling results on the Larose property were obtained from this area.

Mineral Record Details

Site Visit Information

Date: Oct 03, 2016

Geologist: Dorothy Campbell

Notes: The Sweet Spot and Sweet Spot 2 trenches are located at the contact between metasedimentary rocks and a relatively large (approximately 10 m wide) quartz-feldspar porphyry intrusion. At the Sweet Spot trench, the metasedimentary rocks display graded bedding indicative of northwest younging. Bedding planes strike 035° with near-vertical dip. The fine-grained portions of the graded turbidite beds are fissile and display a cross-cutting cleavage that is oriented 222° and dips 75° toward the northwest

Date: Nov 16, 2016

Geologist: Mark Puumala

Notes: The Sweet Spot 2 trench displays the contact between a quartz-feldspar porphyry intrusion and the metasedimentary rocks. Deformation at this location is not as pervasive as at the Sweet Spot. However, the porphyry intrusion contains many quartz-filled and sulphide mineralized brittle fractures. The fractures are steep-dipping and there appear to be three sets that strike 260°, 300° and 340°. The foliation at this location strikes 050°.

References

Map - Precambrian Geology, Moss Township

Publication Number: M2624 Scale: 1:20,000    Date: 1997

Author: Osmani I.A.

Publisher Name: Ontario Geological Survey

Location:

MonoMap - Geology and Mineral Potential, Greenwater Lake Area, West-Central Shebandowan Greenstone Belt

Publication Number: R296 Date: 1997

Author: Osmani I.A.

Publisher Name: Ontario Geological Survey

Location:

Mono - Report of Activities 2003, Resident Geologist Program, Thunder Bay South Regional Resident Geologist Report: Thunder Bay South Kenora District

Publication Number: OFR6129 Page: 17-19  Date: 2004

Author: Schnieders B.R., Scott J.F., O'Brien M.S., Magee M.A., Komar C.L.

Publisher Name: Ontario Geological Survey

Location:

Mono - Report of Activities 2016, Resident Geologist Program, Thunder Bay South Regional Resident Geologist Report: Thunder Bay South District

Publication Number: OFR6326 Page: 34-44  Date: 2017

Author: Puumala M.A., Campbell D.A., Tuomi R.D., Tims A., Brunelle M.R.

Publisher Name: Ontario Geological Survey

Location:

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