Ontario Geological Survey
Permanent Link to this Record:
MDI41O15SE00056
| Record Name(s) | Emerald Isle Resources K3 - 1999, K3 - 1994 |
|---|---|
| Related Record Type | Simple |
| Record Status | Occurrence |
| Date Created | 1999-Nov-25 |
| Date Last Modified | 2022-Jan-05 |
| Created By | A Wilson |
| Revised By | A Wilson |
Primary Commodities: Gold
Township or Area: Swayze
Latitude: 47° 50' 16.72" Longitude: -82° 36' 8.26"
UTM Zone: 17 Easting: 380103.792 Northing: 5299535.362 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 41O15SE
Point Location Description: Stripped outcrop on northwest shore of a small pond
Location Method: Field Visit with GPS
Access Description: Easy access is possible via the Kenty Mine access road from the Dore Road. From the #2 shaft at the Kenty Mine, a series of trails lead to the various stripped areas and the stripped area forming this occurrence.
1931-34: J. G. Kenty and J. L. Kenty - discovery, prospecting. 1983: Heron Resources - ground magnetic and self-potential geophysical surveys, humus survey, geological mapping. 1986: Emerald Isle Resources - stripping, trenching.
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Swayze
Tectonic Assemblage: Halcrow-Swayze
Geological Age: Neoarchean Geochronological Age: 2700 MA Geochron. Age Ref.: GOO VOL 1
Metamorphism Type: Regional
Metamorphism Grade: Greenschist
Dec 07, 2005 (A Wilson) - Late, left lateral faulting has offset the quartz veining, and alteration zones in a number of places.
| Rock Type | Rank | Composition | Texture | Relationship | Vein | 1 | Quartz | Host |
|---|---|---|---|---|
| Mafic lava flow-unsubdivided | 2 | Flow | Adjacent |
Dec 07, 2005 (A Wilson) - The mineralization is hosted in a medium to fine-grained, dark green, massive mafic metavolcanic. This has been cup by a number of narrow, though intense, zone of alteration. The alteration is primarily characterized by a <3 m wide zone of replacement iron carbonate, centred on a braided quartz vein system. Less extensive than the carbonate alteration is a zone of disseminated pyrite which extends tens of centimetres from the veins. The quartz veining has a number of different habits. The larger veins which are up to 50 cm thick, tend to be simple, parallel veins. Smaller vins form a braided stockwork, fill conjugate fractures, local breccias and hydraulic stoping.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Gangue | ||||
| Ankerite | Alteration | Carbonatization | 1 | Strong | Replacement | ||
| Pyrite | Alteration | Pyritic | 2 | Medium | Disseminated |
Dec 07, 2005 (A Wilson) - Very little sulphide mineralization occurs within the quartz veining. Rather, disseminated subhedral pyrite occurs in the altered wallrock. Pyrite grains are up to 2 mm in size and form up to 5% of the altered material. The trace amounts of pyrite within the quartz veins are concentrated in chloritic seams. A sample from the vein reportedly returned an assay of 3.2 g/t Au over a metre. Grab samples taken by the OGS in 1994 returned values of 8.59 g/t Au and 1.4 g/t Ag; and 1.47 g/t Au and 0.2 g/t Ag.
| Rank | Classification |
|---|---|
| 1 | Mesothermal |
| Rank | Characteristic |
|---|---|
| 1 | Vein |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Tabular | 30 | 1 | 50 | 74 |
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 Scale: Date: 1995
Author: Fumerton S.L., Houle K.A.
Publisher Name: Ontario Geological Survey
Map - Geology, Swayze greenstone belt, Rollo Lake, Ontario
Publication Number: OF 3384b Scale: 1:50,000 Date: 1999
Author: Heather, K B; Shore, G T
Publisher Name: Geological Survey of Canada
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