Ontario Geological Survey
Permanent Link to this Record:
MDI000000001423
| Record Name(s) | Mattawa B Zone - 1993 |
|---|---|
| Related Record Type | |
| Related Record(s) | |
| Record Status | Prospect |
| Date Created | 2012-Jun-29 |
| Date Last Modified | 2023-Jan-06 |
| Created By | |
| Revised By |
Primary Commodities: Garnet (Nonmetals)
Township or Area: Mattawan
Latitude: 46° 22' 42.25" Longitude: -78° 51' 52.53"
UTM Zone: 17 Easting: 664217 Northing: 5138308 UTM Datum: NAD83
Resident Geologist District: Sudbury
NTS Grid: 31L07SW
Point Location Description: grid
Location Method: Based on Assessment
Access Description: Access to the center of the area is obtained by taking highway 533 approximately 16 km north of the town of Mattawa. Highway 533 bisects the property with the Discovery Hill and Tower Lake Map sheets to the west and the Mattawa B sheet to the east. Numerous secondary roads and trails traverse the property.
1993-2001: R. Komorachka - prospecting, sampling, beficiation studies, mapping, ground geophysics. 1999: High G Minerals - DD-28. 2004-2007: Barton Mines Ltd. - trenching, pitting, stripping, mapping, bulk sampling (627 kg), beneficiation, petrographic work
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| Mattawan SP-0026 / 2.29550 | 20000000322 | 20000000322 |
| Mattawan SP-0011 / 2.20002 | 31L07NW2007 | 31L07NW2007 |
| 2.35722 | 20000002352 | 20000002352 |
| Mattawan SP-018 / 31L07NW0001 | 31L07NW0001 | 31L07NW0001 |
| Mattawan SP-0010 / 31L07NW2008 | 31L07NW2008 | 31L07NW2008 |
| Mattawan SP-002 / 31L07NW2001 | 31L07NW2001 | 31L07NW2001 |
Province: Grenville
Subprovince: Central Gneiss Belt
Terrane: Tomiko
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Eclogite | 1 | Eclogite | Host |
|---|---|---|---|---|
| Gneiss-Unsubdivided | 2 | Adjacent |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Garnet | Economic | Ore | ||||
| 2 | Olivine | Economic | Gangue |
Jul 09, 2012 (A Wilson) - In 1999 the occurrence was estimated to contain 30% garnet. The garnet is subhedral in shape, orange red in colour and ranges from 1-2 mm in size. The ore sample was very high in heavy minerals (>2.96 sp) and had several forms of garnet present. The ore sample had 34% by weight of garnet but only 54% was almandine, 29% pyrope, and 18% grossular. From a mineralogy standpoint this spread of garnet coupled with the diopside and hornblende comprised 75% of the ore. The ore was rather difficult to process using sizing, gravity, and low and high strength magnetic fields due to the common specific gravity of the diopside-hornblende-pyrope-grossular minerals. The almandine form of garnet has a high specific gravity around 4.3 which allows it to be easily gravity separated. Because of this, the final product could not be purified beyond 80% garnet grade with the above method. The high grade of garnet in the ore is not a sole predictor of economic viability.
| Rank | Classification |
|---|---|
| 1 | Metamorphic |
| Rank | Characteristic |
|---|---|
| 1 | Stratabound |
Map - Precambrian Geology, Songris Area
Publication Number: P2847 Scale: 1:50,000 Date: 2006
Author: Easton R.M.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Geology and Mineral Potential of the Eastern Tomiko Terrane, Grenville Province
Publication Number: OFR5554 Page: 69 Date: 2006
Author: Easton R.M.
Publisher Name: Ontario Geological Survey
Location:
Map - Geological series, Mattawa-Deep River area (western half), District of Nipissing
Publication Number: P1196 Scale: 1:63,360 Date: 1976
Author: Lumbers S.B.
Publisher Name: Ontario Division of Mines
Location:
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