Ministry of Energy, Northern Development and Mines
Permanent Link to this Record: MDI000000000299| Deposit Name(s) | Pelangio-larder Zone - 1990 |
|---|---|
| Deposit Status | occurrence |
| Date Created | 2007-May-24 |
| Date Last Modified | 2020-Dec-17 |
| Created By | M A Puumala |
| Revised By | T Pettigrew |
Primary Commodities: gold, silver
Secondary Commodities: copper, lead
Township or Area: Hewitt Lake Area
Latitude: 52° 29' 5.56" Longitude: -92° 56' 3.34"
UTM Zone: 15 Easting: 504464 Northing: 5814972 UTM Datum: NAD83
Resident Geologist District: Red Lake
NTS Grid: 53C07NW
Point Location Description: Sample 702 on map in Assessment file 20000004865
Location Method: data compilation
1988: Reconnaissance mapping, sampling and assays by Petromet Resources. 1990: Reconnaissance mapping, sampling and assays by Pelangio-Larder Mines.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 53C07NW0001 | 20000004867 | Open |
| 53C07NW0002 | 20000004866 | Open |
| 53C07NW0003 | 20000004865 | Open |
| 2.12498 | 53C07NW0005 | Open |
Province: Superior
Subprovince: Sachigo
Belt: North Spirit Lake
Terrane: North Caribou
Geological Age: Neoarchean
Tectonic Assemblage: Hewitt
| Structure Name | Scale | Strike | Dip | Trend | Plunge |
|---|---|---|---|---|---|
| Mineralized Horizon | local | 70 | 80 |
05/24/2007 (M A Puumala) - The area geology is described in MDI53C07NW00025.
| Rock Type | Rank | Composition | Texture | Relationship |
|---|---|---|---|---|
| metasedimentary | 1 | contains | ||
| intermediate intrusive | 2 | diorite | near |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Habit Description |
|---|---|---|---|---|---|---|---|
| 1 | pyrite | economic | ore | ||||
| 2 | chalcopyrite | economic | ore | ||||
| 3 | pyrrhotite | economic | ore | ||||
| 4 | galena | economic | ore | ||||
| silica | alteration | silicification | 1 | unknown | disseminated | ||
| sericite | alteration | sericitization | 2 | unknown | disseminated |
05/24/2007 (M A Puumala) - Hodgson (1990) describes this occurrence as an approximately 200 m long zone hosted within a metasedimentary rock-dominated sequence. Mapping by Hodgson (1990) indicates that the mineralized zone strikes approximately 070, and that the stratigraphy in the area dips steeply toward the south (approximately 80 degrees). The mineralized horizon appears to approximately parallel the contact with the Bijou Point Complex intrusion, which is located immediately to the north. The lithologies described in the area of the occurrence by Hodgson (1990) include quartzite, conglomerate and chlorite schist (possible metavolcanic horizons). Mineralization is reported to occur largely in the chlorite schist, and consists of silicified, sericitized horizons containing 10 to 15% disseminated and bedded pyrite, pyrrhotite, chalcopyrite and galena. One 4 cm wide mineralized zone is reported to consist of massive pyrite, chalcopyrite and galena. This massive horizon is surrounded by a 1 to 2 m wide silicified alteration zone containing 10-15% disseminated pyrite. Notable grab sample assays reported from this zone by Hodgson (1990) include 0.064 oz/ton Au and 4.1 oz/ton Ag from the massive sulphide horizon, and 0.09 oz/ton Au from a location approximately 200 m to the southwest.
| Rank | Classification |
|---|---|
| 1 | alkalic porphyry |
| Rank | Characteristic |
|---|---|
| 1 | sheared |
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