Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42A11NE00007

Record: MDI42A11NE00007

General

Mineral Record Identification
Record Name(s) Bradshaw Gold Deposit - 2015, Frankfield East Deposit - 1988, North Timmins Gold Project - 2011, New Texmont Option - 1989, Intex -Frankfield - 1974
Related Record Type Partial
Related Record(s)
Record Status Developed Prospect With Reported Reserves or Resources
Date Created 1991-Jan-09
Date Last Modified 2022-Jul-15
Created By
Revised By

Commodities

Primary Commodities: Gold



Location

Township or Area: Tully, Prosser

Latitude: 48° 44' 22.99"    Longitude: -81° 10' 54.79"

UTM Zone: 17    Easting: 486627.32   Northing: 5398538.33    UTM Datum: NAD83

Resident Geologist District: Timmins

NTS Grid: 42A11NE

Point Location Description: Point plotted on OBM topo map from information in assessment files.

Location Method: Based on Assessment

Access Description: Access is either from the west via a gravel road that departs from Hwy 655 and traverses southern Prosser Twp., or from the east via bush trails that depart from the gravel road passing by Ice Chest Lake.



Exploration History

The following text is quoted from a report by H.A. Pearson in assessment file T-2637: Originally the group was staked as a base metal prospect: but, subsequently, diamond drilling of the electromagnetic conductors outlined three gold deposits: the Texmont and Frankfield zones on the Intex property and a similar deposit on the Nickel Offsets property which adjoins to the south. Diamond drilling what appeared to be the faulted extension of the Texmont Zone conductor, during 1974-5-6, Intex and Frankfield outlined the Frankfield Zone, 4,000 feet east of the Texmont Zone. Along a 600-foot length, the Frankfield Zone averaged 0.23 oz/ton Au over an average core width of 15.5 feet. Diamond drilling was completed in 1981 and 1988. 1991: Cyprus Gold (Canada) Ltd. - 7 ddh (3638 m), ground geophysics, 2003-14: Gowest Amalgamated Resources Ltd. /Gowest Gold Ltd. - airborne geophysics, soil survey, mapping, metallurgical testing, DD-273-79,606 m


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
T-2637 / OM88-5C-215
T-3528 / OM91-62 42A14SE0006 42A14SE0006
T-1637 donated donated
T-1637 /63.3208 42A11NE0192 42A11NE0192
T-1637 /63.2951 42A11NE0056 42A11NE0056
T-1637 / 63.3754 42A11NE0026 42A11NE0026
T-1637 /OM81-5-C-77/63 / 63.4099 42A11NE0015 42A11NE0015
T-1637 / 63.3300 42A11NE0051 42A11NE0051
T-2637 / OM88-5C-214 /63.5409 42A11NE0007 42A11NE0007
2.50155 20000006973 20000006973
T-6694/2.54952 20000008975 20000008975
T-6800/2.55846 20000009108 20000009108
T-2637/ 63.3965 / OM-76-PE71-C81 42A11NE0016 42A11NE0016
T-3528 / 63.6127 / OM90-196 42A11NE0001 42A11NE0001

Geology

Province: Superior

Subprovince: Abitibi

Terrane: Wawa-Abitibi

Belt: Abitibi

Tectonic Assemblage: Kidd-Munro

Geological Age: Neoarchean  

Metamorphism Type: Regional

Metamorphism Grade: Greenschist



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Mafic lava flow-unsubdivided 1 Basalt Host
Vein 2 Contains
Serpentinite 3 Serpentinite Near
Ultramafic lava flow-unsubdivided 4 Komatiite Near

Lithology Comments

Aug 21, 2015 (A Wilson) - The deposit is hosted by mafic to intermediate flows with minor, narrow interflow ash tuff and carbonaceous-graphitic sedimentary horizons. Ultramafic flows occur as occasional, narrow units in the lower portion of the sequence and as a thick basal unit. The stratigraphy strikes east-west, with a dip of 75-85 to the north. Mineralization in the Main Zone occurs within a fractured and brecciated altered horizon interpreted as a shear zone in hanging wall basaltic flow rocks at or near the contact with steeply north-dipping footwall ultramafic rocks to the south.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1PyriteEconomicGangue
2ArsenopyriteEconomicGangue
3PyrrhotiteEconomicGangue
4SphaleriteEconomicGangue
5ChalcopyriteEconomicGangue
CarbonateAlterationCarbonatization1StrongReplacement
HematiteAlterationUnknown2WeakReplacement
SilicaAlterationSilicification3WeakReplacement
SericiteAlterationUnknown4UnknownReplacement

Mineralization Comments

Aug 21, 2015 (A Wilson) - Diamond drilling by Cyprus returned values of 4.55 g/t Au over 5 m, 4.77 g/t Au over 6.05 m and 6.35 g/t Au over 2 m. The mineralization is interpreted as a massive/tabular structure that is consistently present throughout the mineralized horizon. Within the Main Zone, higher-grade gold mineralization is localized along the footwall of the Shear (MZ1 Zone) and occasionally along the hanging wall of the shear zone (MZ2 Zone). Sporadic, anomalous to lower grade gold mineralization is present between these two subzones. The Bradshaw Deposit comprises a geological Main Zone and several lesser Hanging Wall Zones. Gold mineralization in the Main Zone occurs primarily within a fractured and brecciated altered horizon, previously interpreted as a shear zone in hanging wall basaltic flow rocks at or near the contact with steeply north-dipping footwall ultramafic rocks to the south. The mineralization is not confined to narrow, vein-like structures, but in a more massive/tabular structure that is consistently present throughout the mineralized horizon. Within the geological Main Zone, higher-grade gold mineralization is localized along the footwall of the horizon (MZ1 Zone) and occasionally along the hanging wall of the horizon (M22 Zone). Both gold mineralized zones appear to rake steeply to the east based on current drill data. Their variation in widths may reflect tectonically controlled shoots or boudinage structures.


Dec 07, 2005 (R Pressacco) - Pearson (Assessment file T-2637) states that pyrite abundance is 3-10% and that arsenopyrite abundance is less than 1%.



Mineral Record Details

Classification
RankClassification            
1 Hydrothermal
Characteristics
Rank Characteristic            
1 Unknown

Mineral Zones - Size and Shape

Rank: 1       Structure Type: Foliation

Zone Name: Detour Lake - Rank 1
Shape Length Thickness Depth Strike Dip Plunge Trend Age Reference
Tabular 750 15 800 75 80 75 NI 43-101 report, 03/08/2011

Site Visit Information

Date: Jun 01, 1999

Geologist: R Pressacco

Notes: The existing resources are calculated to a vertical depth of 250 feet (75 metres), and the zone has an average width of 10 feet. Two deeper drill holes intersected good values. DDH 88FI-11 intersected a weighted average grade of 0.254 oz./ton Au along a core length of 14.9 feet (8.71 g/t Au / 4.54 metres) at a vertical depth of -1000 feet. DDH 88FI-12 intersected a weighted average grade of 0.092 oz./ton Au along a core length of 52.2 feet (3.15 g/t Au / 15.91 metres) at a vertical depth of 650 feet. Aside from these two holes, no significant drilling has been done below -250 feet.


Date: Jun 25, 2004

Geologist: A Wilson

Notes: The strike length of the deposit decreases with depth, along a steep westerly plunge to a length of about 200 m at a vertical depth of 300 m. The deepest intersection (2.37 g/t Au over 3 m) was encountered in hole T-91-6 at 600 vertical metres. The gold mineralization is irregular and somewhat discontinuous in nature. The style of the mineralization suggests that the vein zones may be concentrated in discrete pods and shoots angled away from the main trend of the zone.



Reserves or Resources Data
Zone Year Category Tonnes Reference Comments Commodities
Probable 2017 Probable Mineral Reserve 1800000 OFR6339, p.8 Gold 4.82 Grams per Tonne
Bradshaw Gold Deposit 2015 Indicated Mineral Resource 2121866 NI 43-101 report, p. 14-1, 07/15/2015 422,059 ounces Au Gold 6.19 Grams per Tonne
Bradshaw Gold Deposit 2015 Probable Mineral Reserve 1787295 NI 43-101 report, p. 14-1, 07/15/2015 277 101 ounces Au Gold 4.82 Grams per Tonne
Bradshaw Gold Deposit 2015 Inferred Mineral Resource 3692097 NI 43-101 report, p. 14-1, 07/15/2015 Gold 6.47 Grams per Tonne
Frankfield East 2013 Indicated Mineral Resource 6016544 NI 43-101 report, 01/2013 945,342 ounces Au Gold 4.88 Grams per Tonne
Frankfield East 2013 Inferred Mineral Resource 3692871 NI 43-101 report, 01/2013 536,773 ounces Au Gold 4.22 Grams per Tonne
Frankfield East 2011 Inferred Mineral Resource 4342000 NI 43-101 report, 03/08/2011, p. 92 838,900 ounces Au Gold 6.01 Parts Per Million
Frankfield East 2011 Indicated Mineral Resource 1321000 NI 43-101 report, 03/08/2011, p. 92 348,000 ounces Au Gold 6.68 Parts Per Million
Frankfield Zone 1989 Assay 282800 file T-3528 310,000 tons @0.21 oz./t Au Resource, Drill Indicated Gold 7.19 Grams per Tonne
Production Data
Year Tonnes Commodities Reference Comment
2017 14000 Gold Ounces
OFR6339, p.8 14000 tonnes of ore were stockpiled

References

Book - Sudbury Timmins Algoma Mineral Program, Project 1: mineral inventory of the Sudbury-Timmins-Sault Ste. Marie region, Ontario

Publication Number: GSC OF 1087 Page: 261  Date: 1985

Author: Rose, D.G.

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/129999


Map - Timmins data series, Tully Township, District of Cochrane

Publication Number: P0699 Scale: 1:15,840    Date: 1997

Author: Hunt D.S., Richard J.A., Carey E.R.

Publisher Name: Ontario Geological Survey

Location:


Map - Precambrian Geology of Tully and Little Townships

Publication Number: P3351 Scale: 1:20,000    Date: 1996

Author: Berger B.R.

Publisher Name: Ontario Geological Survey

Location:


MonoMap - Geology of Tully and Little Townships, District of Cochrane

Publication Number: OFR6025 Page: 29-30  Date: 2000

Author: Berger B.R.

Publisher Name: Ontario Geological Survey

Location:


Publication - Technical report on the Frenkfield Gold Project, for Gowest Gold Ltd., 109 p.

Publication Number: NI 43-101 Date: 2011

Author: I.D. Trinder

Publisher Name:

Location: Timmins RGO


Publication - Updated Mineral Resource Estimate, North Timmins Project, Timmins, Ontario, 154p

Publication Number: NI 43-101 Date: 2012

Author: N. Gow, K. Montgomery, P. Ling

Publisher Name:

Location: Timmins RGO


Publication - Bradshaw Gold Deposit, Technical Report and Prefeasibility Study

Publication Number: NI 43-101 Date: 2015

Author: N. Del Bel Belluz, M. St-Laurent, K. Montgomery, P. Ling

Publisher Name:

Location: Timmins RGO


Mono - Report of Activities 2017, Resident Geologist Program, Timmins Regional Resident Geologist Report: Timmins and Sault Ste. Marie Districts

Publication Number: OFR6339 Date: 2018

Author: van Hees E., Pace A., Bustard A., Gomwe T.S., Bousquet P., Daniels C.M., Wilson A.C., Streit L., Sword P., Patterson C., Fudge S.P.

Publisher Name: Ontario Geological Survey

Location:


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