Ontario Geological Survey
Permanent Link to this Record:
MDI41O16NW00039
| Record Name(s) | Dome-Newton - 1984 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1999-Nov-10 |
| Date Last Modified | 2023-Mar-27 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Newton
Latitude: 47° 53' 23.04" Longitude: -82° 22' 40.97"
UTM Zone: 17 Easting: 396985.96 Northing: 5304963.636 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 41O16NW
Point Location Description: Centre of narrow trench 3 m south of road.
Location Method: Field Visit with GPS
Access Description: Access to the general area of the showing is easy via the Dore main haul road and the Orofino Mine/Rundle Mine access road. Follow this road several kilometers past where the Swayze Rive crosses the road.
1966: Hanna Minine - airborne geophysics, mapping. 1982-87: Dome Exploration - reconnaissance mapping and lithogeochemistry; IP survey, stripping, diamond drilling.
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: 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) - Mafic flows strike at 330 and dip at 60 to the NE.
| Rock Type | Rank | Composition | Texture | Relationship | Mafic lava flow-unsubdivided | 1 | Siliceous Basalt | Host |
|---|---|---|---|---|
| Vein | 2 | Quartz-Feldspar | Host |
Dec 07, 2005 (A Wilson) - The trenched outcrop is just south o the road in an area known to have been drilled by Placer Dome. To the west of the trench the rocks are massive, fine- to medium-grained mafic intrusive or flow. The weathered surface is darck green with common epidote altered fracture fillings. This unit is commonly cross cut by carbonate veinlets. The trenched area weathers light to medium brown to pink and has a bleached pink to green colour on the fresh surface. This rock is highly fractured to weakly brecciated with numerous quartz veins generally <8 cm in width. Overall, silicification is high with metasomatic alteration of what appears to have been mafic to intermediate metavolcanics. The siliceous areas contain up to 15% pyrite and trace sphalerite. Mineralization is more prevalent in the more siliceous sections and consists of 10-15% semi-massive and disseminated pyrite associated mainly with quartz veining and some of the more chloritic sections. Trace sphalerite was also observed in these sections.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Gangue | ||||
| 2 | Sphalerite | Economic | Gangue | ||||
| Quartz | Alteration | Silicification | 1 | Strong | Replacement | ||
| Sericite | Alteration | Sericitization | 2 | Medium | Replacement |
Dec 07, 2005 (A Wilson) - Grab samples collected by the OGS in 1993 range from: 7.85 g/t Au, 0.01% Zn, 0.39 g/t Au, 0% Zn; 0.1 g/t Au, 0.0079% Zn. Grab samples collected by Dome reportedly returned values of 2.8 g/t Au.
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Unknown | 330 | 60 |
File - Resident Geologist file T-2041
Publication Number: Date:
Author:
Publisher Name:
Location: Timmins RGP office
Map - Geology, Swayze greenstone belt, Rush Lake, Ontario
Publication Number: OF3384c Scale: 1:50,000 Date: 1999
Author: Heather, K B; Shore, G T
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/210451
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: 311-312 Date: 1995
Author: Fumerton S.L., Houle K.A.
Publisher Name: Ontario Geological Survey
Location:
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