Ministry of Energy, Northern Development and Mines
Permanent Link to this Record: MDI52J02SE00020| Deposit Name(s) | Rainbow Island Se - 1986, Mistango M-86-8 - 1986 |
|---|---|
| Related Deposit Type | None |
| Deposit Status | occurrence |
| Date Created | 1995-May-26 |
| Date Last Modified | 2020-Apr-29 |
| Created By | Q Unknown |
| Revised By | T Pettigrew |
Primary Commodities: gold
Township or Area: Squash Lake Area
Latitude: 50° 1' 57.14" Longitude: -90° 43' 36.9"
UTM Zone: 15 Easting: 662788 Northing: 5544724 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52J02SE
Point Location Description: Diamond drill holes
Location Method: conversion from mdi
Source Map: OGS 1980 MAP 2420 SQUAW LAKE
Sources Map Scale: 1:25 000
Access Description: Light aircraft can land on the lake near the island in summer and winter. Boat and snowmobile access to the area is available from access points off Hwy. 599 from Cobb Bay to Trappers Point on Sturgeon Lake.
1986: Mistango Consolidated Resources Ltd. drilled 1 DDH. 1987: Mistango drilled 3 DDH totalling 296.9 m.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 63.4789 | 52J02SE8665 | Open |
| 52J02SE-0141 | 52J02SE9260 | Open |
| 52J02SE-0059 | 52J02SE8659 | Open |
| 52J02SE CJ-0063A1 | 52J02SE9262 | Open |
Province: Superior
Subprovince: Wabigoon
Belt: Sturgeon Lake
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship |
|---|---|---|---|---|
| vein | 1 | quartz | host | |
| mafic intrusive | 2 | quartz-carbonate basalt | altered | host |
| porphyry | 3 | quartz-feldspar | near | |
| intermediate intrusive | 4 | gabbro | near |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Habit Description |
|---|---|---|---|---|---|---|---|
| 1 | gold | economic | ore | ||||
| 2 | pyrite | economic | ore | ||||
| 3 | pyrrhotite | economic | ore | ||||
| 1 | carbonate | economic | gangue | ||||
| 2 | quartz | economic | gangue | ||||
| carbonate | alteration | carbonatization | 1 | unknown | disseminated |
02/14/2000 (R Tuomi) - Mistango Resources Inc. diamond drill hole M-86-8 intersected two zones of anomalous gold content. At 112 m an interval of 0.1 m assayed 0.18 ounce gold per ton. A second interval at 119.8 m assayed 0.05 ounce gold per ton over 0.18 m. The hole was collared in coarse quartz-feldspar porphyry and passed through a thin metabasalt sill into a 200 foot thick gabbro section with several narrow metabasalt and quartz feldspar intersections. At 290 feet, a thin quartz feldspar layer overlies 180 feet of sheared metabasalt. The central 60 feet of this unit is sheared and has significant quartz-carbonate alteration with trace gold content. Two assays over narrow quartz veins which contained visible gold returned 0.05 and 0.18 ounce gold per ton over 0.5 foot intersections. The drillhole terminated at 486 feet in quartz-feldspar porphyry (Assessment report 52J02SE8659).
04/29/2020 (T Pettigrew) - The 1987 Mistango drill program extended the Rainbow Island zone some 400 ft east of previous hole M-86-8. Mineralization consists of small (2-5) cm) blue quartz veins with an associated carbonate halo containing 1-2% fine-grained disseminations and small clots of pyrite and pyrrhotite. The best, gold values are associated with a chlorite/carbonate/quartz breccia zone within mafic to intermediate metavolcanic flows. The breccia zone becomes progressively weaker and narrower east of Rainbow Island. The best intersection during the present campaign on this structure was in hole M-87-1 which returned a 5.0 ft core length which averaged 0.09 oz/t Au (3.09 g/t Au) (Assessment report 52J02SE8665).
02/14/2000 (R Tuomi) - Shearing.
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