Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI000000000373

Record: MDI000000000373

General

Mineral Record Identification
Record Name(s) Larose P1 & P2 Trenches - 2007
Related Record Type
Related Record(s)
Record Status Occurrence
Date Created 2007-Aug-31
Date Last Modified 2022-Jul-14
Created By
Revised By

Commodities

Primary Commodities: Gold

Secondary Commodities: Copper, Lead, Zinc, Silver



Location

Township or Area: Moss

Latitude: 48° 33' 8.64"    Longitude: -90° 49' 17.99"

UTM Zone: 15    Easting: 660747   Northing: 5379991    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 transferred the property on option by 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 totalling 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

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
2.52224 20000007313 20000007313
2.30136 20000000768 20000000768
2.53456 20000007501 20000007501
2.57070 20000014550 20000014550
2.57089 20000014552 20000014552
2.35525 20000002610 20000002610
2.29727 20000000365 20000000365
2.57141 20000014551 20000014551

Geology

Province: Superior

Subprovince: Wawa

Terrane: Wawa-Abitibi

Belt: Shebandowan

Geological Age: Archean  



Geology Comments

Feb 27, 2017 (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 Data
Rock Type Rank Composition Texture Relationship
Vein 1 Host
Wacke 2 Host
Siltstone 3 Host
Syenite 4 Adjacent

Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1PyriteEconomicOre
3GalenaEconomicOre
4SphaleriteEconomicOre
5ArsenopyriteEconomicOre
6GoldEconomicOre
2PyrrhotiteEconomicGangue
SericiteAlterationSericitization1UnknownDisseminated
ChloriteAlterationChloritic2UnknownDisseminated
CarbonateAlterationCarbonization3UnknownDisseminated

Mineralization Comments

Feb 27, 2017 (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. 2016: Eight out of 9 grab samples collected by RGP from the P zone trenched area on October 3 and November 16, 2016 assayed higher than 1 ounce per ton Au with a maximum value of 5.058 oz/ton Au from the silicified zones.


Nov 27, 2017 (Therese Pettigrew) - 2003 drill program drilled under the P1 trench. Holes 3, 4, and 9 were drilled under the P1 Trench. Hole 3 returned assays of 1.37 gpt Au over 1.05 m. Hole 4 returned assays of 2.28 gpt Au over 5.0 m and 2.06 gpt Au over 2.47 m. Hole 9 returned assays of 2.3 gpt Au over 1 m and 25.5 gpt Au over 0.5 m. Holes 7 and 8 were drilled under the southern edge of the P1 Trench. Hole 7 returned assays of 1.5 gpt Au over 0.5 m. Hole 8 assayed 6.24 gpt over 1 m (AFRI 20000002610). Results from the Tashota Resources 2016 drill program included assays as high as 27.689 gpt Au over 0.5 m from 43.0-43.5 m in LR16-01, 17.864 gpt Au over 0.5 m from 14.0-14.5 m in LR16-02, and 37.343 gpt Au over 0.5 m from 14.75-15.25 m in LR16-03 (AFRI 2.57070).


Aug 31, 2007 (Q Unknown) - 64.9 g per t Au, 52.3 g per t Au plus V.G



Mineral Record Details

Classification
RankClassification            
1 Lode (Gold)
Characteristics
Rank Characteristic            
1 Sheared

Site Visit Information

Date: Oct 03, 2016

Geologist: Mark Puumala

Notes: These mineralized zones are approximately parallel to a cleavage that is visible throughout the stripped outcrop area. Mineralization consists of disseminations and seams (approximately 5%) of sphalerite, pyrite, arsenopyrite and galena. Possible visible gold/electrum was also noted in one sample. Grab samples collected by Tashota Resources from the mineralized zone located at UTM Zone 15, 660831E, 5380088N (newly exposed during 2016 trenching) returned assays of up to 77 g/t Au


Date: Nov 16, 2016

Geologist: Dorothy Campbell

Notes: Stripping shows that the mineralized shear zone is approximately 2 m wide, parallels the stratigraphy and primary foliation, and strikes 030° (see Figure 15). The high-grade gold mineralization occurs in two narrow zones of silicification and quartz veining that are oblique to the trend of the shear zone, striking 240° and dipping approximately 70° to the northwest.



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:


Report an Error

We are continuously updating our assessment file / technical report information. If you notice errors in the data, please contact us.


Terms of Use

Please review our Terms of Use agreement for this data product.


Ministry Contact Information

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