Ministry of Energy, Northern Development and Mines
Permanent Link to this Record: MDI000000000393| Deposit Name(s) | Gold Hill No. 2 And 3 - 1974 |
|---|---|
| Deposit Status | occurrence |
| Date Created | 2007-Oct-23 |
| Date Last Modified | 2020-Jul-30 |
| Created By | M A Puumala |
| Revised By | T Pettigrew |
Primary Commodities: gold
Secondary Commodities: silver
Township or Area: Setting Net Lake Area
Latitude: 52° 51' 10.09" Longitude: -93° 36' 32.41"
UTM Zone: 15 Easting: 458991 Northing: 5856070 UTM Datum: NAD83
Resident Geologist District: Red Lake
NTS Grid: 53C13SE
Point Location Description: Au showing on OGS map P0422
Location Method: data compilation
Access Description: 200 KM N of Red Lake
Trenching by unknown party in 1920s. 1982: Prospecting, sampling and geological mapping by Getty Canadian Metals. 2005: Merc International Minerals Inc. carried out EM and magnetometer surveys. 2007: Anaconda Gold Corp. conducted a prospecting program.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| RL 53C13NE 2.37754 | 20000002839 | Open |
| AF RL53C13SE 42 | ||
| 53C13NE-0003 | 20000004859 | Open |
| 2.31919 | 20000001257 | Open |
Province: Superior
Subprovince: Sachigo
Belt: Favourable Lake
Terrane: North Caribou
Geological Age: Mesoarchean
Tectonic Assemblage: Setting Net
| Structure Name | Scale | Strike | Dip | Trend | Plunge |
|---|---|---|---|---|---|
| Foliation | local | 310 |
| Rock Type | Rank | Composition | Texture | Relationship |
|---|---|---|---|---|
| intermediate metavolcanics | 1 | adjacent | ||
| chert | 2 | contains |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Habit Description |
|---|---|---|---|---|---|---|---|
| 1 | arsenopyrite | economic | ore | ||||
| 2 | pyrite | economic | ore | ||||
| 3 | magnetite | economic | ore |
10/23/2007 (M A Puumala) - The Gold Hill No. 2 occurrence is found in three trenches on the east side of Gold Hill (Ayres 1974). The dominant lithology in the area is reported by Coll (1982) to be intermediate metavolcanics, with the mineralized zone that is exposed in the trenches consisting of gossan, chert, shale and altered intermediate metavolcanics. The alteration and mineralization are reported by Coll (1982) to consist of quartz, chlorite and actinolite with arsenopyrite, pyrite and magnetite. Mapping by Ayres (1974) indicates that stratigraphy strikes approximately northwest, and that the trenches exposed three white to bluish quartz veins that are oriented slightly discordant to the stratigraphy. Coll (1982) notes that foliation is approximately parallel to stratigraphy in this area, striking between 300 and 320 with steep northeasterly dip. Notable grab sample assays reported from the Gold Hill No. 2 zone reported by Coll (1982) include 0.23 oz/ton Au and 0.57 oz/ton Ag from an altered volcanic with up to 15% arsenopyrite and disseminated pyrite (Assessment report 20000004859). No significant assay results were reported from this zone by Ayres (1974). Gold Hill No. 3 zone: Ayres (1974) reported the occurrence of auriferous arsenopyrite in chert exposed in trenches at this location. The No. 3 showing is reported to be located on the east side of Gold Hill, south of the nearby Gold Hill No. 2 occurrence. Ayres (1974) describes the mineralized zone as an approximately 7.5 m wide, rusty weathering septum between gabbro to the southwest and talcose peridotite to the northeast. Mineralization in the chert horizon is reported to consist of trace to 5% pyrite that occurs as disseminations and medium- to coarse-grained veinlets. Anomalous gold values were reported by Ayres (1974) from a 5 cm wide arsenopyrite-bearing (20-30%) zone. Coll (1982) interpreted the geology of this occurrence as consisting of a mixture of clastic and chemical metasedimentary rocks (including chert) hosted by mafic to intermediate metavolcanic rocks. Mineralization was described as consisting of arsenopyrite, pyrite, pyrrhotite and chalcopyrite. Coll (1982) also reports the occurrence of quartz-actinolite-arsenopyrite-chlorite bands that may represent alteration zones or leached quartz veins. Coll (1982) indicates that the mineralized metasedimentary zone strikes 138. Minor east-southeast-plunging isoclinal folds with 090- to 110-trending axial planes were also noted by Coll (1982) in the metasedimentary rocks. The relative orientations of the main zone and minor folds were interpreted as indicating that the Gold Hill Nos. 2 and 3 occurrences are located on the south limb of a synform or north limb of an antiform. The most notable grab sample assay results from this occurrence reported by Ayres (1974) were 0.07 oz/ton Au and 16.7% As. Coll (1982) reported three grab sample assays of 0.04 oz/ton Au. One of these samples also assayed 0.6 oz/ton Ag (Assessment report 20000004859).
| Rank | Classification |
|---|---|
| 1 | lode (gold) |
| Rank | Characteristic |
|---|---|
| 1 | concordant |
Publication - Geology of the Trout Lakes Area
Publication Number: R113 Date: 1974
Author: Ayres, L.D.
Publisher Name: OGS
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