Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI000000001108

Record: MDI000000001108

General

Commodities

Primary Commodities: Gold

Location

Township or Area: Moss

Latitude: 48° 32' 33.31"    Longitude: -90° 41' 47.63"

UTM Zone: 15    Easting: 670011   Northing: 5379171    UTM Datum: NAD83

Resident Geologist District: Thunder Bay South

NTS Grid: 52B10NW

Point Location Description: DDH ML-06-02 from AFRI 52B10SE2016

Location Method: Data Compilation

Access Description: Access is by road via Provincial Highways 11/17west to Shabaqua Corners and from there on Highway 11 further west towards Fort Frances, Rainy River and the state of Minnesota. Twelve kilometres west of the village of Kashabowie, the "Swamp Lake" gravel road, part of a network of sporadically used logging roads, branches off towards the south.

Exploration History

1987-88: Tamavack and International Maple Leaf carried out mapping, soil and rock sampling, and drilled 10 DDH totalling 1895.2 m. 1990: Noranda Exploration Company Ltd. discovered the zone while testing for an ENE extension of the Main Zone, carried out mapping, trenching, sampling, geophysical surveys and drilled 69 DDH totalling 24,505.6 m. 1992: Noranda drilled 7 DDH totalling 4383 m. 1996: Moss Lake Gold Mines Ltd. drilled 5 DDH. 1999: Moss Lake Gold Mines Ltd. carried out magnetic and VLF-EM surveys. 2002: Moss Lake Gold Mines carried out geological mapping and sampling, an IP survey, and drilled 2 DDH totalling 555.9 m. 2008: Moss Lake Gold Mines drilled 10 DDH totalling 2008.3 m. 2010: Moss Lake Gold Mines released an NI 43-101 compliant resource estimate. 2013: Moss Lake Gold Mines released a new NI 43-101 resource estimate and PEA. The QES Zone is now interpreted to be part of the Moss Lake 101 and 102 Zones. 2014: Wesdome Gold Mines Ltd. acquired Moss Lake Gold Mines. 2017: Wesdome conducted IP and resistivity surveys, and drilled 32 DDH totalling 18,697.3 m. 2021: Goldshore Resources acquired the property from Wesdome.

Assessment Work on File

Geology

Province: Superior

Subprovince: Wawa

Terrane: Wawa-Abitibi

Belt: Shebandowan

Geological Age: Archean  

Lithology

Lithology Comments

Sep 25, 2018 (Therese Pettigrew) - The gold-bearing zone in DDH ML-02-06 is described as a diorite that is weakly silicified with up to 10% pyrite and 15% chalcopyrite as fracture-fillings, scattered cubes, and blebs (AFRI52B10SE2016). The Moss Lake mineralized zones (Main and QES zones) were identified as occurring in a sheared and altered diorite sill about 457 m long, striking at 060 degrees, bounded to the north and south by felsic volcanics. The sill ranges from quartz diorite to quartz feldspar porphyry to feldspar porphyry. The entire sill is described as being somewhat sericite and carbonate altered with lesser chlorite, hematite, and epidote. There is local silicification but little quartz veining. Intensely sheared and altered areas become sericite schist. The shearing and alteration are most intense in the porphyritic rocks where a fine-grained rock containing large quartz phenocrysts developes and is called quartz eye schist, hence the QES Zone (Risto and Breede, 2010).

Mineralization

Mineralization Comments

Jan 19, 2017 (J Scott) - OGS outcrop sample: 530 ppb Au grab sample, 2004: DDH ML-02-07 1.3 m @ 1.72 gpt Au 2008: DDH ML-08-11 12.2 m @ 1.65 gpt Au

Sep 25, 2018 (Therese Pettigrew) - DDH ML-08-05 assayed 4887 ppb Au over 1.5 m, 1524 ppb Au over 19.67 m, and 1336 ppb Au over 31.42 m. DDH ML-08-06 had assays up to 3848 ppb Au, 6371 ppb Au, and 17425 ppb Au. DDH ML-08-07 assayed up to 3169 ppb Au, 11922 ppb Au, and 18420 ppb Au. DDH ML-08-08 assayed up to 4938 ppb Au and 8625 ppb Au. DDH ML-08-09 assayed up to 1765, 2368, 8435, and 12907 ppb Au. DDH ML-08-10 assayed up to 3430, and 17573 ppb Au (AFRI 20000003849). DDH ML-02-06 assayed 7.956 gpt Au over 1.2 ft at 769.9 ft and 26.776 gpt Au over 1.6 ft at 771.1 ft. Goldshore Resources' DDH MQD-22-019 returend 1.04 g/t Au over 65.0 m from 142.4 m depth including 6.56 g/t Au over 1.6 m from 142.4 m depth and 2.14 g/t Au over 13.0 m from 173.0 m depth (Goldshore Resources news release June 14, 2022).

Alteration Comments

Sep 25, 2018 (Therese Pettigrew) - Hematite alteration is common and widespread sericitization is diagnostic of the QES Zone (Risto and Breede, 2010).

Mineral Record Details

References

Publication - An Update to a Technical Review of the Moss Lake Gold Property, Including an Updated Mineral Resource Estimate

Publication Number: 2010 NI 43-101 Date: 2010

Author: Risto, R.W., and Breede, K.

Publisher Name: Watts, Griffis and McOuat for Moss Lake Gold Mines

Location:

Map - Precambrian Geology, Moss Township

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

Author: Osmani I.A.

Publisher Name: Ontario Geological Survey

Location:

Publication - Technical Report and Mineral Resource Estimate for the Moss Lake Project

Publication Number: 2013 NI 43-101 Date: 2013

Author: Richard, P-L., Verschelden, R., and Pelletier, C.

Publisher Name: InnovExplo for Moss Lake Gold Mines

Location:

Mono - Geological setting of gold mineralization in the western part of the Shebandowan Greenstone belt, District of Thunder Bay, northwestern Ontario

Publication Number: OFR5636 Date: 1987

Author: Chorlton L.B.

Publisher Name: Ontario Geological Survey

Location:

Publication - A preliminary geological model for syenite-associated disseminated gold deposits in the Abitibi belt, Ontario and Quebec; Geological Survey of Canada, Current Research no. 1997-C

Publication Number: CR 1997-C Date: 1997

Author: Robert, F.

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/208646

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