Ontario Geological Survey
Permanent Link to this Record:
MDI42C04SE00015
| Record Name(s) | Dominion Explorers DDH Mac-87-24 - 1987 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 2001-Oct-11 |
| Date Last Modified | 2022-Sep-14 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: David Lakes Area
Latitude: 48° 7' 9.76" Longitude: -85° 31' 21.4"
UTM Zone: 16 Easting: 609950.77 Northing: 5330624.22 UTM Datum: NAD83
Resident Geologist District: Sault Ste. Marie
NTS Grid: 42C04SE
Point Location Description: Drill collar for Dominion Explorer's DDH 87-24
Location Method: Based on Assessment
Access Description: The site is accessible by helicopter from Wawa.
1982: Harbinson Mining and Oil - airborne geophysics. 1983-86: Wasabi Resources Ltd./Chavin of Canada Ltd./O'Brien Energy and Resources Ltd. - airborne geophysics, mapping, geochemistry, ground geophysics. 1986-87: Dominion Explorers Inc. - mapping, 1 ddh (253 ft), IP survey. 1988-89: Noranda Exploration Company Ltd. - mapping, prospecting, geochemistry, trenching. 1996-97: Murgor Resources Inc. - prospecting, IP survey.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| David Lakes 0014 | 42C04SE0052 | 42C04SE0052 |
| David Lakes 0018 | 42C04SE0050 | 42C04SE0050 |
| 42C04NE0019 | 42C04SE0048 | 42C04SE0048 |
| David Lakes 0013 | 42C04SE0057 | 42C04SE0057 |
| David Lakes 0015-A1 | 42C04SE8750 | 42C04SE8750 |
| 42C/04NE-0020 | 42C04SE0048 | 42C04SE0048 |
| WP David Lakes.2 | 42C04SE0046 | 42C04SE0046 |
| WP David Lakes.43 | 42C04SE0053 | 42C04SE0053 |
| WP David Lakes-41 | 42C04SE0038 | 42C04SE0038 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Michipicoten
Tectonic Assemblage: Catfish
Geological Age: Neoarchean Geochronological Age: 2.7 GA Geochron. Age Ref.: GOO VOL 1
Dec 07, 2005 (A Wilson) - Deformation and alteration styles of the western MDZ, immediately west of Macassa Creek, are similar to the central MDZ. However, the intensity of strain and alteration decreases further to the west approaching the contact with the Pukaskwa Batholith. The MDZ swings with the stratigraphy, striking approximately 220 at Scuzzy Little Lake where stretching lineations plunge to the west. Folds, crenulations and kinkbands are not as common as in the central MDZ. The Scuzzy Little Lake area lies within the contact metamorphic aureole of the Pukaskwa Batholith.
| Rock Type | Rank | Composition | Texture | Relationship | Vein | 1 | Quartz | Host |
|---|---|---|---|---|
| Intermediate Tuff | 2 | Tuff Or Metasediment | Host | |
| Intermediate Tuff | 3 | Lapilli Tuff | Hanging Wall | |
| Terrigenous-Clastic-Unsubdivided | 4 | Sandstone | Footwall |
Dec 07, 2005 (A Wilson) - Elevated gold values are returned from narrow veins and quartz stringers hosted by a pyritized-felsic tuff or felsic tuffaceous metasediment. Biotitic and sericitic alteration are pervasive. Above the mineralized zone, the metasediments or tuffs are intruded by narrow (3-5 m) dikes/sills of metagabbro now sheared to biotite-calcite schist. Below the tuffaceous rocks, the sheared and unsheared metasandstones return elevated gold values. The drill hole and surface grab samples were collected within 25 m of the western boundary of a diabase dike.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrargyrite | Economic | Gangue | ||||
| Biotite | Alteration | Biotitic | 1 | Medium | Replacement | ||
| Sericite | Alteration | Sericitization | 2 | Medium | Replacement |
Dec 07, 2005 (A Wilson) - Grab samples collected by Dominion Explorers returned assays of 0.47 oz/t Au and 0.58 oz/t Au. Assays from drill hole MAC-87-24 returned values rangig from 0.02 oz/t Au over 20 ft to 0.062 oz/t Au over 1.2 ft.
Map - Precambrian geology, Mishibishu Lake area, Macassa Creek sheet
Publication Number: P3151 Scale: 1:15,840 Date: 1992
Author: Reid R.G., Bowen R.P., Heather K.B., Logothetis J., Reilly B.A.
Publisher Name: Ontario Geological Survey
Location:
Map - Geological series, Precambrian geology, Mishibishu Lake area, north-central section, districts of Thunder Bay and Algoma
Publication Number: P2969 Scale: 1:15,840 Date: 1986
Author: Bowen R.P., Logothetis J., Heather K.B.
Publisher Name: Ontario Geological Survey
Location:
Map - Pukaskwa River, Thunder Bay District
Publication Number: M2332 Scale: 1:63,360 Date: 1976
Author: Bennett G., Thurston P.C., Giguere J.F.
Publisher Name: Ontario Division of Mines
Location:
Map - Operation Pukaskwa, Pukaskwa River sheet, districts of Thunder Bay and Algoma
Publication Number: P0506 Scale: 1:63,360 Date: 1997
Author: Bennett G., Thurston P.C., Giguere J.F.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Operation Pukaskwa, districts of Algoma and Thunder Bay
Publication Number: P0541 Scale: 1:126,720 Date: 1997
Author: Bennett G., Thurston P.C., Giguere J.F.
Publisher Name: Ontario Dept. of Mines
Location:
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