Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42C14SE00005

Record: MDI42C14SE00005

General

Mineral Record Identification
Record Name(s) Sugar Zone - 1991
Related Record Type Simple
Related Record(s)
Record Status Producing Mine
Date Created 2000-Feb-29
Date Last Modified 2024-Jan-23
Created By
Revised By

Commodities

Primary Commodities: Gold



Location

Township or Area: Hambleton, Odlum

Latitude: 48° 47' 53.7"    Longitude: -85° 0' 35.15"

UTM Zone: 16    Easting: 646154   Northing: 5406939    UTM Datum: NAD83

Resident Geologist District: Timmins

NTS Grid: 42C14SE

Point Location Description: centre of zone

Location Method: Based on Assessment

Access Description: The zone can be accessed either along grid lines from the eastern shore of Dayohessarah Lake or by helicopter.



Exploration History

1958: Canadian Pacific Railway conducted mapping. 1983-86: Pezamerica Resources Corporation completed an airborne EM and magnetometer survey, geochemistry, mapping. 1986-87: Teck Corporation carried out mapping and soil geochemical survey. 1988: Mascot Gold Mines completed a soil geochemical survey. 1988: Noranda Exploration Company Ltd. completed a reconnaissance geochemical survey. 1987: L. Halverson, E. Beavan, P. Nabigon carried out prospecting. 1989: Broad Horizons carried out an airborne geophysical survey. 1994: Hemlo Gold Mines/Akiko Gold Resources completed 15 diamond drill holes totaling 2416 m. 1991-94: Hemlo Gold Mines Ltd. carried out ground geophysics, geochemistry, and mapping. 1988-99: Corona Gold Corporation/Harte Resources completed 53 diamond drill holes totaling 9937 m, stripping, trenching, mapping, ground geophysics. 2003-04: Corona Gold Corporation/Harte Gold Corp. 37 diamond drill holes. 2008-09: Corona Gold Corporation carried out airborne geophysics, 10 diamond drill holes totaling 2020 m, prospecting. 2010-2011: Harte Gold Corporation carried out 31 diamond drill holes totalling 15,000 m, DHGP, ground geophysics, prospecting. 2012: Harte Gold Corp. completed 12 diamond drill holes totalling 6284m and trenching. 2014: Harte Gold Corp. carried out Induced polarization survey, ground magnetic survey, geological mapping, prospecting, assays. 2017-2018: Harte Gold Corp. completed an airborne geophysical survey, a ground geophysical survey (VLFEM). 2019: Harte Gold Corp. Sugar Zone Mine went into commercial production in January 2019; 4 diamond drill holes totaling 2037m, assaying and analyses. 2022: Silver Lake Resources acquired the Sugar Zone Mine.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
WP Odlum.8 / 2.41892 20000004282 20000004282
WP Odlum.11 / 2.54077 20000009026 20000009026
WP Hambleton .23 / 2.55786 20000014193 20000014193
WP Hambleton.26 / 2.55782 20000014995 20000014995
WP Hambleton.30 / 2.58374 20000015432 20000015432
46183 20000017884 20000017884
ODLUM 16 / 42C14SE0034 20000005086 20000005086
WP HAMBLETON.14 / 2.19237 42C15SW2001 42C15SW2001
WP HAMBLETON.12 / 2.15437 42C14SE0013 42C14SE0013
WP HAMBLETON.11 / 2.15336 42C15SW0004 42C15SW0004
HAMBLETON0020 / OM-83-7-C-211 42C15NW8813 42C15NW8813
HAMBLETON 12 42C15NW0004 42C15NW0004
ODLUM 10A1 42C15SW0104 42C15SW0104
WP ODLUM.4 / 2.15328 42C14NE0002 42C14NE0002
WPHAMBLETON.18 / 2.28384 42C14SE2002 42C14SE2002
WPHAMBLETON.3 / 2.14043 42C15SW0002 42C15SW0002
WP Hambleton.4 42C14SE8684 42C14SE8684
WP HAMBLETON.16 / 2.19793 42C15SW2003 42C15SW2003
WP Hambleton.5 42C14SE8683 42C14SE8683
WP STRICKLAND.1 / 2.15240 42C10NW8900 42C10NW8900
WP ODLUM.3 / 2.13492 42C15NW0303 42C15NW0303
WP Odlum.05 42C15SW0006 42C15SW0006
WP ODLUM.7 / 2.19600 42C15SW2002 42C15SW2002
WP HAMBLETON.15 / 2.19545 42C14SE2001 42C14SE2001
WP HAMBLETON.9 / 2.15274 42C14SE8702 42C14SE8702

Geology

Province: Superior

Subprovince: Wawa

Terrane: Wawa-Abitibi

Belt: Dayohessarah-Kabinakagami

Tectonic Assemblage: Dayohessarah-Kabinakagami

Geological Age: Neoarchean   Geochronological Age: 2.75 GA   Geochron. Age Ref.: GOO VOL 1, P. 492

Metamorphism Type: Regional

Metamorphism Grade: Greenschist



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Mafic lava flow-unsubdivided 1 Amphibolitized Basalt Near
Porphyry-unsubdivided 2 Porphyry Quartz-Feldspar Near
Vein 3 Quartz Host

Lithology Comments

Dec 07, 2005 (A Wilson) - The quartz veins of the Sugar Zone occur in strongly foliated amphibolitized basaltic flows injected by abundant felsic sills that are either very fine-grained or contain quartz or feldspar phenocrysts. This weathered suite of sills is intruded and accompanied by narrow, pyritic quartz veins. The Sugar Zone is a zone of strong flattening and subvertical stretching.


May 26, 2020 (Sheree Hinz) - The mineralized Upper, Lower and Footwall Subzones of the Sugar Zone lie within the Sugar Deformation Zone. They occur within a highly strained assemblage consisting of variously altered mafic volcanic flows, intermediate porphyritic intrusions and boudinaged auriferous quartz veins. The three zones range in true thickness from about 1.5 to 10 m and are separated by 20 to 30 m of unmineralized metavolcanics. Each Subzone is made up of one or more porphyritic intrusions, flanked by altered basalt and hosting conformable quartz veins. Alteration within the mafic metavolcanic portions of the subzones consists primarily of silicification that occurs both as pervasive alteration and as quartz veining, diopsidation and biotization. The porphyry units of the zones exhibit biotite and silica alteration, but lack diopside alteration.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1GoldEconomicOre
4GalenaEconomicOre
1PyriteEconomicGangue
2ArsenopyriteEconomicGangue
3MolybdeniteEconomicGangue
5FuchsiteEconomicGangue
SilicaAlterationSilicification1MediumVeins
BiotiteAlterationBiotitic2MediumDisseminated
FeldsparAlterationAlbitization3MediumVeins

Mineralization Comments

Sep 05, 2012 (A Wilson) - Grab samples collected by the OGS returned values of 1.03 and 2.15 oz/t Au. The best values from channel sampling range from 2.45 g/t Au over 0.46 m to 25.75 g/t Au over 1.41 m. The Sugar Zone is a continuous structure with upper and lower horizons approximately 15-25 m apart. The two horizons comprise multiple feldspar porphyry sills. These silicified, banded horizons contain 1-10% pyrrhotite and pyrite with quartz veins usually along the felsic porphyry-basalt contacts. Best assays from 2003 drilling returned 59.57 g/t Au over 0.32 m from Lower Zone in drill hole CH-58 and 24.10 g/t Au over 0.64 m from the Upper Zone in drill hole CH-57. Gold mineralization mostly occurs in quartz veins, stringers and quartz flooded zones predominantly associated with porphyry zones, porphyry contact zones, hydrothermally altered basalts and, rarely, weakly altered or unaltered basalt within the Upper and Lower zones. Fine to coarse grained specks and blebs of visible gold are common in the Sugar Zone quartz veins, usually occurring within marginal, laminated or refractured portions of the veins. The visible gold itself is often observed to be concentrated within thin fractures, indicating some degree of remobilization. Quartz veins and floods also contain varying amounts of pyrrhotite, pyrite, chalcopyrite, galena, sphalerite, molybdenite and arsenopyrite. The presence of galena, sphalerite and/or arsenopyrite is a strong indicator of the presence of visible gold. Pyrite, chalcopyrite and, rarely, molybdenite form a minor component of total sulphides and do notappear to be directly related to the presence of gold mineralization.


May 26, 2020 (Sheree Hinz) - Gold mineralization mostly occurs in quartz veins, stringers and quartz flooded zones predominantly associated with porphyry zones, porphyry contact zones, hydrothermally altered basalts and, rarely, weakly altered or unaltered basalt within the Upper, Lower and Footwall Subzones. Fine to coarse-grained specks and blebs of visible gold are common in the Sugar Zone quartz veins, usually occurring within marginal, laminated or refractured portions of the veins. The visible gold itself is often observed to be concentrated within thin fractures, indicating some degree of remobilization. Quartz veins and floods also contain varying amounts of pyrrhotite, pyrite, chalcopyrite, galena, sphalerite, molybdenite and arsenopyrite. The presence of galena, sphalerite and/or arsenopyrite is a strong indicator of the presence of visible gold.



Mineral Record Details

Classification
RankClassification            
1 Epithermal
Characteristics
Rank Characteristic            
2 Stockwork
1 Vein

Mineral Zones - Size and Shape

Rank: 1       Structure Type: Vein

Zone Name: Detour Lake - Rank 1
Shape Length Thickness Depth Strike Dip Plunge Trend Age Reference
Regular 3500 2 345 65

Site Visit Information

Date: Aug 29, 2012

Geologist: A Wilson

Notes: The major linear structure recognized on the Property is the Sugar Deformation Zone (SDZ) that trends northwest-southeast for approximately 3.5 km and dips southwest between 65° and 75°. The SDZ appears to be spatially related to the Strickland Pluton and is a complex system with strain intensities varying from strongly deformed-pillow mafic volcanics to undeformed massive mafic flows to anastomising linear areas. Stratigraphically-conformable porphyritic intermediate intrusions swarm through the SDZ. Both the mafic volcanics and the intermediate intrusives exhibit moderate linear fabrics along with hydrothermal alteration (i.e., silicification).



Reserves or Resources Data
Zone Year Category Tonnes Reference Comments Commodities
Sugar Zone Mine 2022 Proven + Probable Reserve 3156000 OFR6402, p.6 3,156,000 tonnes at 5.1 g/t Au. 512,000 contained oz Au. Proven & Probable reserve at the end of 2022. Gold 5.1 g/t
Sugar Zone Mine 2021 Proven + Probable Reserve 3807383 OFR6384, p.7 3,807,383 tonnes at 7.18 g/t Au. 797,000 contained oz Au. Probable reserve at the end of 2020. Gold 7.18 g/t
Sugar Zone 2020 Proven + Probable Reserve 3454000 OFR6374, p.7 Proven + Probable Reserves; 797,000 oz Au Gold 7.18 Grams per Tonne
Sugar Zone 2019 Probable Mineral Reserve 2437000 Technical report, February 2019, p. 9 583,000 oz Au Gold 7.4 Grams per Tonne
Sugar Zone 2019 Proven + Probable Reserve 1607000 OFR6366, p.8 714,200 oz Au; Proven + Probable Mineral Reserve at the end of 2019 (grade is indicated) Gold 8.52 Grams per Tonne
Sugar Zone 2018 Indicated Mineral Resource 1607000 OFR6354, p.9 Gold 8.52 Grams per Tonne
Sugar Zone 2012 Inferred Mineral Resource 580500 Technical report, February 2012, p. 8 131,300 oz (capped) contained Gold 7.03 Grams per Tonne
Sugar Zone Update 2012 Inferred Mineral Resource 417000 PEA 12/07/2012 2,968,000 g Gold 7.13 Grams per Tonne
Sugar Zone 2012 Indicated Mineral Resource 980900 Technical report, February 2012, p. 8 275,000 oz (capped) contained Gold 8.72 Grams per Tonne
Sugar Zone Update 2012 Indicated Mineral Resource 1117000 PEA 12/07/2012 9,394,000 g Gold 8.41 Grams per Tonne
Sugar Zone - Upper and Lower Zones 2010 Indicated Mineral Resource 1117000 Technical report, September 19, 2010, p. 23 CUT OFF GRADE 3.00g/t ; 9,394,000 total grams Gold 8.41 Grams per Tonne
Sugar Zone - Upper and Lower Zones 2010 Inferred Mineral Resource 417000 Technical report, September 19, 2010, p. 23 CUT OFF GRADE 3.00g/t ; 2,968,000 total grams Gold 7.13 Grams per Tonne
SUGAR ZONE (INFERRED) 2004 Inferred Mineral Resource 904400 Technical report, September 19, 2010, p. 8 CUT OFF GRADE 3.00g/t; 283,000 CONTAINED OUNCES Gold 9.72 Grams per Tonne
DAYO LAKE 1999 Probable 731400 CORONA ANNUAL INFORMATION FORM, MAY 9 2003 CUT OFF GRADE 1.0 G/T AU; 170200 CONTAINED OUNCES Gold 7.24 Grams per Tonne
SUGAR ZONE 1999 Probable 692000 RESIDENT GEOLOGIST FILES Gold 6.9 Grams per Tonne
Production Data
Year Tonnes Commodities Reference Comment
2022 260292 Gold 50021 Ounces
OFR6402, p.6 Grade: 6.3 g/t Au
2021 259265 Gold 51453 Ounces
OFR6384, p.7 Head grade of 6.5 g/t Au
2020 134360 Gold 25649 Ounces
OFR6374, p.7 Head grade of 6.3 g/t Au
2019 201214 Gold 27316 Ounces
OFR6366, p.8
2018 28000 Gold 5000 Ounces
OFR6354, p.9 Only reported doré produced, gold in concentrate still needs to be recovered
2017 67425 Gold 17762 Ounces
OFR6339, p.8 Grade: 8.19g/t gold

References

Map - Precambrian Geology, Dayohessarah Area (Central)

Publication Number: P3310 Scale: 1:20,000    Date: 1995

Author: Stott G.M., Mahoney K.L., Zwiers W.G.

Publisher Name: Ontario Geological Survey

Location:


Mono - Precambrian Geology of the Dayohessarah Lake Area, White River, Ontario

Publication Number: OFR5984 Page: 21-24  Date: 1999

Author: Stott G.M.

Publisher Name: Ontario Geological Survey

Location:


Map - Dayohessarah Lake area, District of Algoma

Publication Number: P0288 Scale: 1:63,360    Date: 1997

Author: Fenwick K.G.

Publisher Name: Ontario Dept. of Mines

Location:


Mono - Report of Activities 2020, Resident Geologist Program, Timmins Regional Resident Geologist Report: Timmins and Sault Ste. Marie Districts

Publication Number: OFR6374 Date: 2021

Author: Azadbakht Z., Bousquet P., Zammit K., Daniels C.M., Hinz S.L.K., Sword P., Boucher C., Dorland G., Patterson C.

Publisher Name: Ontario Geological Survey

Location:


Publication - 2003-04 Diamond Drilling Program and Resource Estimate on Sugar Zone

Publication Number: NI 43-101 Date: 2004

Author: Hunt, D.

Publisher Name:

Location: Timmins RGP


Map - Dayohessarah Lake area, Algoma District

Publication Number: M2129 Scale: 1:126,720    Date: 1968

Author: Fenwick K.G.

Publisher Name: Ontario Dept. of Mines

Location:


Mono - Report of Activities 2022, Resident Geologist Program, Timmins Regional Resident Geologist Report: Timmins and Sault Ste. Marie Districts

Publication Number: OFR6402 Page: Date: 2023

Author: Azadbakht Z., Krukowski M., Maity B.K., Bousquet P., Daniels C.M., Hinz S.L.K., Adrianwalla C.J., Dorland G., Sabiri N., Patterson C.

Publisher Name: Ontario Geological Survey

Location:


Publication - Press releases - Harte Resources-Corona Gold Corp.

Publication Number: Date:

Author: Harte Resources Corp.

Publisher Name:

Location: Timmins RGP


Map - Precambrian Geology Compilation Series - White River Sheet

Publication Number: M2666 Scale: 1:250,000    Date: 2001

Author: Santaguida F.

Publisher Name: Ontario Geological Survey

Location:


Mono - Report of Activities 2019, Resident Geologist Program, Timmins Regional Resident Geologist Report: Timmins and Sault Ste. Marie Districts

Publication Number: OFR6366 Date: 2020

Author: van Hees E., Bousquet P., Suma-Momoh J., Daniels C.M., Hinz S.L.K., Boucher C., Sword P., Wang L., Fudge S.P., Millette A., Patterson C.

Publisher Name: Ontario Geological Survey

Location:


Mono - Report of Activities 2019, Resident Geologist Program, Timmins Regional Resident Geologist Report: Timmins and Sault Ste. Marie Districts

Publication Number: OFR6366 Date: 2020

Author: van Hees E., Bousquet P., Suma-Momoh J., Daniels C.M., Hinz S.L.K., Boucher C., Sword P., Wang L., Fudge S.P., Millette A., Patterson C.

Publisher Name: Ontario Geological Survey

Location:


Publication - NI 43-101 Technical Report and Feasibility Study on The Sugar Zone Gold Operation Sault Ste. Marie Mining Division, Ontario for Harte Gold Corp.

Publication Number: NI 43-101 Date: 2019

Author: E. Puritch, J. Barry, A. Bradfield

Publisher Name:

Location: Timmins RGO


Publication - 2010 Diamond Drilling Program and Resource Estimate On Sugar Zone Project

Publication Number: NI 43-101 Date: 2010

Author: D. Hunt

Publisher Name:

Location: Timmins RGO


Publication - NI 43-101 Technical Report on the Preliminary Economic Assessment of the Sugar Zone Project, North-western Ontario, Canada, for Harte Gold Corp

Publication Number: NI 43-101 Date: 2012

Author: M. Buck, A.S. Hayden, B. LeBlanc

Publisher Name:

Location: Timmins RGO


Publication - NI 43-101 Technical Report and mineral resource update for the Dayohessarah Lake Property Sugar Zone Project, Ontario, Canada, for Harte Gold Corp., 133 p.

Publication Number: NI 43-101 Date: 2012

Author: M.W. Kociumbas, D. Power-Fardy

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:


Mono - Report of Activities 2018, Resident Geologist Program, Timmins Regional Resident Geologist Report: Timmins and Sault Ste. Marie Districts

Publication Number: OFR6354 Date: 2019

Author: van Hees E., Bousquet P., Bustard A., Pressacco R.E., Daniels C.M., Fudge S.P., Walker J., Streit L., Wang L., Sword P., Patterson C.

Publisher Name: Ontario Geological Survey

Location:


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