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Permanent Link to this Record: MDI42E10NE00020

Record: MDI42E10NE00020

General

Commodities

Primary Commodities: Gold

Location

Township or Area: Ashmore

Latitude: 49° 40' 9.23"    Longitude: -86° 53' 25.86"

UTM Zone: 16    Easting: 507900   Northing: 5501861    UTM Datum: NAD83

Resident Geologist District: Thunder Bay North

NTS Grid: 42E10NE

Point Location Description: Bingo Vein location from AFRI 20000001122

Location Method: Data Compilation

Access Description: Follow Highway 584 extension south from the Geraldton turn-off to the end of the road at the old Hardrock townsite. Proceed by boat to the east end of Hardrock Peninsula on Kenogamisis Lake.

Exploration History

1932: William Gascon staked claims TB10666 and TB10667, and Peter Gascon staked claims TB10669 to TB10671 inclusive. Thirty assessment days were credited to the claims. 1933: Further surface work was performed on the claims. 1934: Claims TB10666 and TB10667 were transferred to Peter Gascon. An option agreement was filed with the Kenogamisis Exploration Syndicate, and 62 assessment days were credited to each claim. 1935: A total of 800 assessment days were credited to each claim. 1936: The option was dropped and the claims were transferred to Hardrock Gold Mines Limited. Three holes totalling 127.7 m (419 feet) were drilled and a number of trenches were dug. 1937: Ashmore Gold Mines Limited was incorporated by Hardrock Gold Mines Ltd. to further develop the claims. The five claims were transferred to Ashmore Gold Mines Limited, at which time diamond drilling and trenching continued. The claims were patented. Ashmore Gold Mines Ltd. claims included TB10666, TB10667 and TB10669 to TB10671. 1939-44: The company was listed as inactive. 1945: A grid was cut over the claims and a number of trenches were dug and sampled by Hardrock Gold Mines Ltd. The patents were cancelled. 1981: The claims were restaked by Patrick A. Culhane, who transferred all interests to Michael Malouf (TB579209 to TB579212 inclusive and TB580863). Quarternary Mining and Exploration Co. Ltd. obtained 23 claims, TB561798, TB561800 to 1802, TB579209 and 9210, TB579212, TB580864 to 0867, TB580987 to 0989, TB580991, TB686108 to 6111, TB68612 and 8613. Linecutting, magnetomer and VLF-EM surveys were conducted over the western portion of the claim block. 1984-2016: Hardrock Extension Inc. conducted ground magnetometer and very low frequency electromagnetic (VLF–EM) surveys, extensive stripping and channel sampling, trenching and the completion of 74 diamond-drill holes, totalling 15,603 m. Much of this work focussed on the Hardrock Peninsula and has resulted in the discovery of 6 main zones: Porphyry zone, Stanley zone, V.G. zone, Bingo vein, and Point vein in 1984.

Assessment Work on File

Geology

Province: Superior

Subprovince: Wabigoon

Belt: Beardmore-Geraldton

Geological Age: Archean  

Geology Comments

Dec 07, 2005 (A Mitchell) - General Geology and Structure: Horwood and Pye (1951) described the geology of Asmore Township. The area is underlain by tuff and volcanic breccia, intermediate to mafic metavolcanics (dacite, andesite and basalt), clastic-chemical metasediments (congolmerate, arkose, or quartz greywacke, greywacke, slate and ironstone), quartz diorite, albite porphyry, quartz albite prophyry, plagioclase diorite porphyry, diorite, hornblende diorite and hornblende gabbro. Diabase dikes intrude all rock types. The Hardrock Extension occurrence is described by Horwood and Pye (1951) as being: '...underlain by a wide zone of tuffs and volcanic breccias, which occur in horizons alternating with sill-like masses of hornblende diorite and which, to the north and south, are enclosed by a series of grey-wackes and slates of east-west strike and steep southerly dip. Intrusive nto the pyroclastic and clastic sediments and the hornblende diorite is a prominent, north-south dike of Keweenawan quartz diabase.' Stripping by M. Malouf in 1984 has exposed two other rock types: a pillowed basalt to pillow breccia and a feldspar porphryr. The latter intrudes the diorite and meta-volcanics. Horwood and Pye (1951) state that: 'The Bankfield-Tombill Fault extends through the Hardrock Extension and continue east of the peninsula into Kenogamisis Lake. The fault zone is a strongly sheared and brecciated zone which..., strikes N77 degrees an dips about 70 degreesS.' The zone of influence of the Bankfield-Tombill Fault is greater than 100 m wide.

Oct 29, 2018 (Robert Cundari) - From OFR6315: The Hardrock Extension property lies along the northern portion, and within the eastern part of the Southern Metasedimentary sub-belt (SMB) (Devaney and Williams 1989), which marks the southern boundary of the eastern Marmion domain of the Wabigoon Subprovince. The SMB, which is part of the Beardmore–Geraldton greenstone belt, is host to 11 past-producing gold mines and over 95% of the 4.1 million ounces of gold produced from this greenstone belt (Mason and McConnell 1983). The SMB (circa 2691 to 2701 Ma) averages 3 km in width at the western end of the greenstone belt to 10 km in width in the Lindsey, Errington and Ashmore townships area to the east. It consists of a thick sequence of clastic metasedimentary rocks. Pye (1952) subdivided the SMB in the Geraldton area into 2 distinct groups: the southern Group B, consisting of a monotonous sequence of wackes; and the northern Group A, which contains arkose, wacke, siltstone, conglomerate and significant amounts of interbedded oxide-facies banded iron formation. It is in this area, along the northern portion of the SMB in Errington and Ashmore townships, within a major zone of deformation, where much of the gold mineralization is located, including 9 past-producing gold mines. This highly deformed and lithologically and structurally complex, east-southeast-trending, lenticular zone ranges from 2 to 4 km in width, is roughly 24 km long and has been termed the Barton Bay lithotectonic zone (BBLZ; Williams and Stott 1991; Smyk, Fralick and Hart 2005). The shallow, westerly plunges (approximately 30°) observed within this zone is pervasive along most of the Beardmore–Geraldton greenstone belt. The BBLZ is bounded on the south by the Bankfield–Tombill fault zone (Pye 1952), and by the Portage and related shear zones in the north. The BBLZ is characterized by prominent Z-folded iron formation, intense shearing and an anomalously higher percentage of mafic intrusive rocks (most notably as lenticular intrusions) and porphyritic felsic dikes, which may have had an influence on localizing mineralization (Lavigne 1983). The western portion of the Hardrock Extension block lies within the eastern extent of the BBLZ. The zone is identified by intense shearing and a series of gold occurrences located immediately north of the eastern trace of the BBLZ on Hardrock Peninsula. The zone of gold mineralization on the Hardrock Peninsula has been traced for 975 m along an easterly strike by a series of trenches and consists of 6 occurrences known as the Porphyry zone, Stanley zone, Porphyry zone, Stanley zone, V.G. zone, Bingo vein, Point vein and the Discovery zone.

Lithology

Lithology Comments

Dec 07, 2005 (A Mitchell) - The Hardrock Extension occurrence is described by Horwood and Pye (1951) as being: '...underlain by a wide zone of tuffs and volcanic breccias, which occur in horizons alternating with sill-like masses of hornblende diorite and which, to the north and south, are enclosed by a series of grey-wackes and slates of east-west strike and steep southerly dip. Intrusive nto the pyroclastic and clastic sediments and the hornblende diorite is a prominent, north-south dike of Keweenawan quartz diabase.' Stripping by M. Malouf in 1984 has exposed two other rock types: a pillowed basalt to pillow breccia and a feldspar porphryr. The latter intrudes the diorite and meta-volcanics. Horwood and Pye (1951) state that: 'The Bankfield-Tombill Fault extends through the Hardrock Extension and continue east of the peninsula into Kenogamisis Lake. The fault zone is a strongly sheared and brecciated zone which..., strikes N77 degrees an dips about 70 degreesS.' The zone of influence of the Bankfield-Tombill Fault is greater than 100 m wide.

Oct 29, 2018 (Robert Cundari) - Magnetic susceptibility measurements taken on the "Bingo Vein" outcrop (located at NAD83 Zone 16 507900 m E, 5501861 m N) showed a dramatic contrast as silicification, brecciation and veining registered very low readings. High resistivities were measured in these zones as well.

Mineralization

Mineralization Comments

Dec 07, 2005 (A Mitchell) - Three main showings occurr on the property. Archibald (1983)* documented one occurrence: Several zones of quartz stringers were located containing slight pyrite and arsenopyrite in sheared and silicified diorite and bedded tuffaceous sediments striking N75 degreesE and dipping steeply south. The zones were lenticular and discontinuous. Trench samples in this area gave as high as 0.15 oz of gold per ton over a 5.0 foot width or 0.25 oz of gold over a 1.9 foot width. In the diamond drilling in the vicinity of these trenches, one section of drill core assayed 0.14 oz of gold per ton over a 4.0 foot core length and a 79.0 foot length of core from the same hole assayed 0.02 oz gold per ton.' Intruding the diorite is an altered feldspar porphyry unit. The porphyry is well fractured and hosts narrow quartz-tourmaline veins in a stockwork. Gold is associated with arsenopyrite on the walls of the quartz veins. The porphyry is greater than 20 m in width and controls the gold mineralization. A narrow composite quartz vein subparallel to the Bankfield-Tombill Fault also hosts gold mineralization. It is indicated that three shallow drill holes were drilled into the showing by Ashmore Gold Mines. The vein system is lenticular and a minimum of 150 m in strike length. Visible gold, carbonate and minor pyrite were noted. Assays reported by Mason and White, 1986: 84-MHE-9: <0.01 Au (oz/T). 84-MHE-10: 0.11 Au (oz/T). 84-MHE-11: 0.02 Au (oz/T). 84-MHE-12: 0.05 Au (oz/T). 84-MHE-13: 0.01 Au (oz/T). 84-MHE-14: 0.24 Au (oz/T). 84-MHE-15: 0.15 Au (oz/T). 84-MHE-16: 0.08 Au (oz/T). 84-MHE-17 : 0.01 Au (oz/T). Malouf Channel Samples: 84-MHE-18: <0.01 Au (oz/T). 84-MHE-19: <0.01 Au (oz/T). 84-MHE-20 : <0.01 Au (oz/T). 84-MHE-21: <0.01 Au (oz/T). 84-MHE-22: 0.09 Au (oz/T). 84-MHE-23: 0.01 Au (oz/T). 84-MHE-24: 0.31 Au (oz/T). 84-MHE-25: <0.01 Au (oz/T).. 84-MHE-26: 0.02 Au (oz/T). 84-MHE-27: 0.02 Au (oz/T). 84-MHE-28: 1.23 Au (oz/T).

Oct 29, 2018 (Robert Cundari) - The "Visible Gold Zone", located at NAD83 UTM Zone 16, 507489 m E and 5501844 m N, and striking parallel to and just south of the "Bingo Vein" is a wide silicified zone and is well mineralized with pyrite. The zone has been uncovered over a strike length of 103.6 m. The zone is still open on strike to the west, where it is covered by swamp. Detailed channel sampling of quartz vein material at the west end of the zone returned 9.6 gpt Au over an average width of 1.3 m over a length of 19.8 m. Two channel samples across the zone returned assays of 6.17 and 5.83 gpt Au over 5.5 and 6 m respectively (AFRI 20000001122). Detailed channel sampling of the V.G. zone, by the property owner, along a strike length of 104 m returned assay results up to 5.29 g/t Au over 6.1 m (White et al., 2016). An analysis of the drill cross-sections for the Discovery (located at NAD83 Zone 16 508030 m E, 5501648 m N) and Stanley (located at NAD83 UTM Zone 16 507183 m E, 5501989 m N) Zones show gold mineralization confined to saddle-like quartz veins and stringers conforming to the crest of parasitic, anticlinal fold structures. The crescent- and/or Z-shaped mineral outlines on cross-sections show enrichment of gold in the hinges pinching out rapidly over 45 to 60 m distances. The longitudinal section demonstrates a shallow westerly plunge varying between 20° and 50° for the Porphyry and Discovery Zones respectively. The distribution of high gold values in the Discovery Zone is confined between intercepts on Sections 23E (5.14 gpt Au over 10 m including 26 gpt Au over 1.5 m) and 26E (26 gpt Au over 5.4 m including 76.8 gpt Au over 1.5 m). The highest concentrations appear to be structurally confined to tight, anticlinal fold hinges illustrating a westerly plunge of 47º. The Porphyry Zone, located at NAD83 UTM Zone 16 507297 m E, 5501993 m N, to the north-west of the "Visible Gold Zone" is a stockwork of quartz veins and stringers in a porphyry. Mineralization in the quartz is pyrite and arsenopyrite. Grab samples taken at "Main Trench" showed values ranging from nil to 13 gpt Au and averaged 3.1 gpt Au over a width of 4.6 m. The width of the zone could not be determined, due to swampy conditions and water in the trench. Channel sampling 36.5 m along strike to the northwest assayed 2.4 gpt Au across 1.64 m. The "Point Vein", located at NAD83 UTM Zone 16 507993 m E, 5501645 m N, a mineralized and siliceous east-west striking zone which measures six to eight feet wide and carries anomalous gold values. Sixteen grab samples taken over a 64 m length of the zone returned values ranging from nil to 1.7 gpt Au. The zone was stripped for nearly 91 m and is open in both directions. The zone disappears under the lake to the east and under swamp to the west (AFRI 20000001122).

Alteration Comments

Dec 07, 2005 (A Mitchell) - Three main showings occurr on the property. Archibald (1983)* documented one occurrence: 'Asmore Gold Mines Ltd. was incorporated on these in 1937 and they trenched and diamond drilled five holes on what is now claim TB579210. Several zone s of quartz stringers were located containing slight pyrite and arsenopyrite in sheared and silicified diorite and bedded tuffaceous sediments striking N75 degreesE and dipping steeply south. The zones were lenticular and discontinuous and were reported 'not to appear to contain gold in sufficient quantities to make ore.' Trench samples in this area gave as high as 0.15 oz of gold per ton over a 5.0 foot width or 0.25 oz of gold over a 1.9 foot width. In the diamond drilling in the vicinity of these trenches, one section of drill core assayed 0.14 oz of gold per ton over a 4.0 foot core length and a 79.0 foot length of core from the same hole assayed 0.02 oz gold per ton.' Intruding the diorite is an altered feldspar porphyry unit. The porphyry is well fractured and hosts narrow quartz-tourmaline veins in a stockwork. Gold is associated with arsenopyrite on the walls of the quartz veins. The porphyry is greater than 20 m in width and controls the gold mineralization. A narrow composite quartz vein subparallel to the Bankfield-Tombill Fault also hosts gold mineralization. It is indicated that three shallow drill holes were drilled into the showing by Ashmore Gold Mines. The vein system is lenticular and a minimum of 150 m in strike length. Visible gold, carbonate and minor pyrite were noted.

Mineral Record Details

Mineral Zones - Size and Shape

Rank: 1       Structure Type: Breccia

Site Visit Information

Date: Mar 19, 1997

Geologist: A Mitchell

Notes: Visit by Mason, J. and White, G. September 6, 1984 and September 25, 1985.Sample Results:Sample No.: 84-MHE-1Au (oz/T): <0.01Location: West Boundary (Sulphide Zone)Sample Description: Sheared, silicified, pyritic mafic meta-volcanic. Some gossan, 5% stretched anhedraldisseminated pyrite. Sample No.: 84-MHE-2Au (oz/T): 0.09Location: Main Showing (North End Trench)Sample Description: Grey, silicified feldspar porphyry with grey vitreous quartz vein -5 to 10% disseminated euhedralarsenopyrite.Sample No.: 84-MHE-3Au (oz/T): 0.06Location: Main Showing (South End Trench)Sample Description: Grey, silicified feldspar porphyry with grey vitreous quartz vein -3% disseminated arseno-pyrite.Sample No.: 84-MHE-4Au (oz/T): 0.86Location: Visible Gold VeinSample Description: Grey-white waxy to vitreous quartz vein, almost cherty in places. Some crack-seal grey shearedmetavolcanics in contact. Minor disseminated pyrite (no gold visible) was noted.Sample No.: 84-MHE-5Au (oz/T): 0.04Location: Extension of Visible Gold VeinSample Description: Quartz tourmaline vein in contact with possible sheared mafic tuff or feldspar porphyry. Prominentwith gossan 2-3% disseminated pyrie (no gold visible).Sample No.: 84-MHE-6Au (oz/T): <0.01Sample Description: Silicified, sheared pillowed mafic metavolcanics. Rare fine dissemianted pyrite (<1%).Sample No.: 84-MHE-7Au (oz/T): 0.01 Sample Description: Vein structure - possible cobalt bloom? Magnetite-epidote alteration in veinlets and clots.Sample No.: 84-MHE-8Au (oz/T): 0.01Location: East of Visible Gold New Zone opened up Sept. 5/84, north of old drill collarSample Description: Rusty, sugary quatz-tourmaline in fine veinlets, containing 3-5% disseminated subhedral toeuhedral pyrite.Sample No.: 84-MHE-8Au (oz/T): 0.07Location: West Boundary (Sulphide Zone)Sample Description: Sulpide rich, sheared mafic metavolcanid, highly gossaned

Date: Sep 16, 2015

Geologist: G White

Notes: From OFR6315: Geologists of RGP Thunder Bay North visited the six occurrences on the property in 2015. Samples were collected by staff from stripped bedrock exposures on the Porphyry zone displaying rusty quartz veins, en �chelon boudinaged quartz stringers (averaging 2 to 10 cm wide) and brecciated stockwork quartz veining hosted in moderate to intensely sheared, chlorite-altered tuff. Mineralization averages from 2 to 5% (and ranges as high as 10 to 15%) and consists mostly of fine-grained, euhedral arsenopyrite and lesser amounts of pyrite. Highly deformed quartz masses from 1 to 2 m wide, exhibiting a crack-seal texture and containing fine laths of tourmaline, as well as patches and seams of rusty carbonate alteration and occasional apple-green fuchsite, were also observed. The observation was made that the Point vein zone measures from 1.8 to 2.4 m wide and can be traced for over 90 m to the shore of Kenogamisis Lake at the eastern end of Hardrock Peninsula. This zone appears to be more highly silicified than the Porphyry and VG zones. A series of grab samples collected by the owner returned values ranging from nil to 1.56 g/t Au. The overall trend of the rocks ranged from 275� to 285�.

References

Mono - Mineral occurrences, deposits, and mines of the Black River-Matheson area

Publication Number: OFR5735 Scale:     Date: 1990

Author: Bath A.C.

Publisher Name: Ontario Geological Survey

Mono - Report of Activities 2015, Resident Geologist Program, Thunder Bay North Regional Resident Geologist Report: Thunder Bay North District

Publication Number: OFR6315 Scale:     Date: 2016

Author: White G.D., Cundari R.M., Brunelle M.R., Pettigrew T.K., Tuomi R.D., Tims A., Debicki R.L.

Publisher Name: Ontario Geological Survey

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