Ontario Geological Survey
Permanent Link to this Record:
MDI42B01NW00073
| Record Name(s) | Nib Yellowknife North - 1947 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1999-May-25 |
| Date Last Modified | 2022-Sep-27 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Keith
Latitude: 48° 7' 58.39" Longitude: -82° 15' 48.78"
UTM Zone: 17 Easting: 405988 Northing: 5331842 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 42B01NW
Point Location Description: Centre of a small stripped outcrop
Location Method: Field Visit with GPS
Access Description: Easy access is possible by taking the Horwood Lake access road to the Joburke Mine road. From the mine road, take the access road to the San Gold-Hoodoo deposit. Past it, there is a narrow ATV trail which will lead to the stripping out in the bush (Keep right!). The trail is hard to follow since saplings are growing on it.
1947: Nib Yellowknife - geological mapping. 1966: D. S. Robertson and Associates - ground mag and HLEM survey; diamond drilling in 1969. 1972: Dome Exploration - airborne geophysical survey. 1980: Dome Exploration Canada Limited – Mag. 1987: Gail Resources/Marshall Minerals - stripping and trenching.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-249 / 2.1027 | 42B01NE0161 | 42B01NE0161 |
| T-1340 / 63.2025 | 42B01NE0163 | 42B01NE0163 |
| T-1340 / 23 | 42B01NW0073 | 42B01NW0073 |
| T-2338 / 2.3737 | 42B01NE0148 | 42B01NE0148 |
| T-2776 / 2.10370 | 42B01NW0038 | 42B01NW0038 |
| T-2776 / W8906-00260 | 52B01NE5006 | 52B01NE5006 |
| T-68 / 63A.12 | 42B01NW0086 | 42B01NW0086 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Swayze
Tectonic Assemblage: Muskego-Reeves
Geological Age: Neoarchean
Metamorphism Type: Regional
Metamorphism Grade: Greenschist
Apr 02, 2015 (A Wilson) - Very fine-grained, grey quartz occurs in irregular boudins which are hosted in sheared and folded mafic metavolcanic rocks. The metavolcanics consist of alternating mafic and leucocratic bands typically several centimeters thick and which originally were probably tuffs. These folded and banded tuffs are separated from more uniform green, altered and foliated mafic metavolcanics by a greyish carbonate chlorite schist.
| Rock Type | Rank | Composition | Texture | Relationship | Vein | 1 | Quartz | Host |
|---|---|---|---|---|
| Mafic Tuff | 2 | Tuff | Near | |
| Schist-Unsubdivided | 3 | Chlorite | Recrystallized | Host |
Dec 07, 2005 (A Wilson) - At the south end of the stripping the dominant structure is a strong foliation/schistosity trending 070. North of the carbonate schist the foliation and lithological banding has been folded in a number of directions.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Gangue | ||||
| 2 | Chalcopyrite | Economic | Gangue | ||||
| 3 | Pyrrhotite | Economic | Gangue |
Dec 07, 2005 (A Wilson) - The fine-grained quartz boudins have very few sulphides sparsely disseminated within the vein. In contrast, the adjacent banded and folded tuffs contain a number of thin seams of massive pyrite parallel to the foliation. These seams tend to be more abundant where the host metavolcanics are slightly graphitic and on the weathered surfaces there are numerous rusty patches coincident with the pyrite seams. Assays from grab samples off of the muck pile have returned values of 0.041 g/t Au and 0.111 g/t Au.
| Commodity | Analytical Method | Digestion Method | Result | Unit | Limit | Qualifier |
|---|---|---|---|---|---|---|
| Gold | Unknown | oz/t | BDL | |||
| Gold | Unknown | oz/t | BDL | |||
| Silver | Unknown | oz/t | BDL | |||
| Silver | Unknown | oz/t | BDL |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Irregular | 3 | 45 |
Date: Aug 07, 2014
Geologist: P Bousquet
Notes: The area shows highly deformed, iron stained, mafic volcanic rocks. The rocks are outcropping over 25-75 m2. The schistosity appears to be 244°N sub vertical, but does appear twisted at times. The mineralization is associated with pyritic seams concordant with the schistosity. These seams are 0.1 to 0.5 cm in thickness.
Map - Precambrian Geology, Northern Swayze Greenstone Belt
Publication Number: M2627 Scale: 1:50,000 Date: 1995
Author: Ayer J.A.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Precambrian Geology, Northern Swayze Greenstone Belt
Publication Number: R297 Date: 1995
Author: Ayer J.A.
Publisher Name: Ontario Geological Survey
Location:
Map - Patricia Showing-Hoodoo Prospect, Minor Element Data
Publication Number: OFM0215 Scale: 1:250 Date: 1993
Author: Siragusa G.M.
Publisher Name: Ontario Geological Survey
Location:
Part - Geology of the Keith-Muskego townships area
Publication Number: ARV59-07 Date: 1997
Author: Prest V.K.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Parts of Keith and Muskego townships, District of Sudbury, Ontario
Publication Number: M1950-04 Date: 1997
Author: Prest V.K., Hogg N.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Mineral Prospects of the Swayze Greenstone Belt (Volume 1, Parts of NTS 41 O and Volume 2, Parts of NTS 41 P, 42 A and 42 B)
Publication Number: OFR5912 Page: 644-645 Date: 1995
Author: Fumerton S.L., Houle K.A.
Publisher Name: Ontario Geological Survey
Location:
Map - Geophysical/geochemical series, north Swayze-Montcalm area, airborne electromagnetic survey, total intensity magnetic survey
Publication Number: M81376 Scale: 1:20,000 Date: 1990
Author: Geoterrex Ltd.
Publisher Name: Ontario Geological Survey
Location:
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