Ontario Geological Survey
Permanent Link to this Record:
MDI000000000491
| Record Name(s) | Dome DDH 188-8A - 1984 |
|---|---|
| Related Record Type | |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 2008-Mar-12 |
| Date Last Modified | 2022-Jun-07 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Nango Lake Area
Latitude: 52° 26' 43.23" Longitude: -91° 25' 3.24"
UTM Zone: 15 Easting: 607550.001 Northing: 5811750.005 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 53B06NW
Point Location Description: Assessment file map.
Location Method: Data Compilation
1983-86: Geophysical surveys and diamond drilling by Dome Exploration Canada.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| W8403.00036 | 53B06NW0005 | 53B06NW0005 |
| 53B06NW0013 | 53B06NW0003 | 53B06NW0003 |
Province: Superior
Subprovince: Berens River
Terrane: North Caribou
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship | Ironstone-unsubdivided | 1 | Host |
|---|---|---|---|---|
| Mafic lava flow-unsubdivided | 2 | Adjacent |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| Calcite | Alteration | Calcitization | 1 |
Mar 12, 2008 (Mark Puumala) - This occurrence is based on anomalous gold assays reported from Dome Exploration diamond drill hole number 188-8A (AFRI# 53B06NW0005). This drill hole was advanced to test a magnetic anomaly shown on Dome Exploration magnetometer survey map number 83-198 (Racic, 1983). This magnetic anomaly occurs in a folded iron formation unit that is overlain by a thick layer of overburden. The magnetic data shown on the Dome Exploration maps (Racic, 1983) indicate that the axial plane of the fold strikes approximately 300. Diamond drill hole 188-8A was drilled parallel to the interpreted fold axial plane. Assays of 0.68 g/t Au were reported over intervals of 0.79 and 0.83 m from a unit of iron formation that was intersected between 84.87 and 94.36 m. The iron formation was described as red and black thinly-banded iron formation. The bands were reported to be contorted, with minor calcite stringers and negligible sulphides.
| Rank | Classification |
|---|---|
| 1 | Lode (Gold) |
| Rank | Characteristic |
|---|---|
| 1 | Stratabound |
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For detailed information regarding this mineral record please contact the Thunder Bay North Resident Geologist District Office