Ontario Geological Survey
Permanent Link to this Record:
MDI42C02NE00097
| Record Name(s) | Porter-Premier Occurrence - 1927, Springbank Zone - 2005 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1982-Nov-10 |
| Date Last Modified | 2022-Jul-21 |
| Created By | |
| Revised By |
Primary Commodities: Gold, Copper
Township or Area: Abotossaway
Latitude: 48° 13' 5.33" Longitude: -84° 37' 42.58"
UTM Zone: 16 Easting: 676151 Northing: 5343266 UTM Datum: NAD83
Resident Geologist District: Sault Ste. Marie
NTS Grid: 42C02NE
Point Location Description: precise
Location Method: AMIS Site Visit
Access Description: From the Ego Mine which is 18.8 km by gravel road from Dubreuilville hwy.519 (at a point 2 km east of twin lakes). A bush road is taken from Ego Mine for 1609 m to the site.
1926: discovery, 23 foot deep test pit sunk on the vein. 1961-76: Ego Mines Limited - DD-9. 1977-82: United Canso Oil and Gas - mapping, sampling ground geophysics, DD-2 2005-09: Pele Gold Corporation - airborne geophysics, prospecting, sampling, DD-28, mapping
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| WP Abotossaway.50 | 20000002451 | 20000002451 |
| WP Abotossaway.46 | 20000001848 | 20000001848 |
| WP Abotossaway.52 | 20000004581 | 20000004581 |
| WP Abotossaway.44 | 20000001817 | 20000001817 |
| ABOTOSSAWAY 40 | 42C02NE0801 | 42C02NE0801 |
| ABOTOSSAWAY 14 | 42C02NE8715 | 42C02NE8715 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Michipicoten
Tectonic Assemblage: Catfish
Geological Age: Neoarchean Geochronological Age: 2700 MA Geochron. Age Ref.: GOO P. 500
Nov 02, 2010 (A Wilson) - The occurrence lies along the south margin of the Gutcher Lake Stock. The occurrence lies within the western domain of the Goudreau Lake Deformation Zone. The western domain is composed of 85-115 degree striking brittle and brittle-ductile high strain zones displaying dextral oblique-slip displacement.
| Rock Type | Rank | Composition | Texture | Relationship | Vein | 1 | Quartz-Carbonate | Host |
|---|---|---|---|---|
| Tonalite | 2 | Trondhjemite | Sheared | Near |
| Ironstone-unsubdivided | 3 | Near |
Nov 02, 2010 (A Wilson) - The 4 parallel veins comprising the occurrence cross-cut the south margin of the Gutcher Lake Stock. The stock is trondhjemitic in composition and displays pyrite-albite-chlorite-sericite-carbonate alteration in the vicinity of the veins. The trondhjemite in the vicinity of the veins is extremely schistose and grades into massive trondhjemite over approximately 2 m. The surrounding rocks were described by Gledhill as consisting of pyritized sericite schist. The Springbank occurrence is located along the contact of the Gutcher Lake stock with intermediate to felsic metavolcanics and iron formation. Two shear directions are evident, a northwest shear parallel to the contact between the metavolcanics and the granodiorite, and an east-west shear oriented sub-parallel to a block of disrupted magnetite facies iron formation.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Gold | Economic | Ore | ||||
| 1 | Pyrite | Economic | Gangue | ||||
| 2 | Pyrrhotite | Economic | Gangue | ||||
| 3 | Sphalerite | Economic | Gangue | ||||
| 4 | Tourmaline | Economic | Gangue |
Nov 02, 2010 (A Wilson) - The vein has been described as containing coarse gold, particularly in those areas where tourmaline has been observed and the wall rocks are particularly sericitized. Assays from the 1961 Ego Mines drilling returned copper values ranging from 0.14% to 2.76% and gold values ranging from 0.01 to 0.13 oz/t Au. Higher assays of gold occur within quartz veins hosting a significant proportion of intensely altered metavolcanics and 5-15% pyrite. Typical assays from the Pele Gold drill program returned: 3.3 g/t Au over 1.88m (PP-DH05-22), 17.9 g/t Au over 2.46 m (PP-DH05-24), 6.1 g/t Au over 4.88 m (PP-DH05-25) and 2.6 g/t Au over 2.15 m (PP-DH06-12). Grab samples from mafic metavolcanic outcrops located outside of the main Springbank Zone and to the south of the Gutcher Lake pluton margin returned 1183 ppb Au and 7695 ppb Cu.
| Rank | Characteristic |
|---|---|
| 1 | Vein |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Unknown | 70 | 270 | 70 |
Map - Goudreau-Lochalsh area, District of Algoma, Ontario
Publication Number: ARM36B Scale: 1:63,360 Date: 1998
Author: Gledhill T.L., Collins W.H., Thomson E.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Goudreau-Lochalsh area, District of Algoma, Ontario
Publication Number: ARM49G Scale: 1:31,680 Date: 1997
Author: Bruce E.L.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Michipicoten area, compilation sheet, District of Algoma
Publication Number: P0184 Scale: 1:126,720 Date: 1997
Author: Goodwin A.M.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Precambrian Geology, Abotossaway Township
Publication Number: OFM0223 Scale: 1:15,840 Date: 1993
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
Book - Abotossaway Township (unpublished)
Publication Number: GDIF Date: 1983
Author: Resident Geologist Staff
Publisher Name:
Location: Timmins RGP
Part - Goudreau-Lochalsh gold area, District of Algoma
Publication Number: ARV36-02.002 Date: 1998
Author: Gledhill T.L.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Gold deposits of Ontario, part 1, districts of Algoma, Cochrane, Kenora, Rainy River, and Thunder Bay
Publication Number: MDC013 Page: 43 Date: 1971
Author: Ferguson S.A., Groen H.A., Haynes R.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
Mono - Wawa mineral deposits data base
Publication Number: OFR5775 Page: 102-103 Date: 1991
Author: Frey E.D., Stewart R.C.
Publisher Name: Ontario Geological Survey
Location:
Book - Gold Occurrences of Wawa-Missinabie Area, unpublished report
Publication Number: Robinson Page: 21 Date: 1983
Author: Robinson, D.
Publisher Name:
Location: Timmins RGO
MonoMap - Geology of Abotossaway, Corbiere, Leclaire and Musquash Townships and Part of Dunphy Township, District of Algoma
Publication Number: OFR5587 Page: 242-243 Date: 1993
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
Thesis - An Archean Felsic Stock with Peripheral Gold and Copper Occurrences, Abotossaway Township, District of Algoma
Publication Number: PhD Thesis Date: 1982
Author: Studemeister, P.
Publisher Name: University of Western Ontario
Location:
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: 76 Date: 1985
Author: Rose, D. G.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/129999
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