Ontario Geological Survey
Permanent Link to this Record:
MDI31F04SE00092
| Record Name(s) | Hamlyn Occurrence - 1968, Hamlyn Deposit - 1980 |
|---|---|
| Related Record Type | Simple |
| Record Status | Discretionary Occurrence |
| Date Created | 1981-Mar-12 |
| Date Last Modified | 2022-Jan-05 |
| Created By | Q Unknown |
| Revised By | A Wilson |
Primary Commodities: Magnetite
Township or Area: Mayo
Latitude: 45° 3' 35.38" Longitude: -77° 37' 21.51"
UTM Zone: 18 Easting: 293511 Northing: 4992943.002 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31F04SE
Point Location Description: approximate
Location Method: Data Compilation
Access Description: Access is via a gravel road that trends south from Highway 500 at the settlement of Hermon. It is located at a point 4.8 km south of the highway, 210 m northeast of the road.
1956: Frobisher Limited - mapping, ground geophysics
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 63.4124 | 31F04SE9455 | 31F04SE9455 |
Province: Grenville
Subprovince: Central Metasedimentary Belt
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Skarn | 1 | Is |
|---|---|---|---|---|
| Marble | 2 | Adjacent | ||
| Tonalite | 3 | Tonalite | Contains |
Oct 19, 2011 (A Wilson) - The deposit is a small xenolith of magnetite-bearing skarn contained within a tonalite intrusion. The tonalite is intruded into a succession of paragneisses and marbles. The rock units strike northeasterly and dip steeply (70-85°) to the southeast.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Magnetite | Economic | Ore |
| Rank | Classification |
|---|---|
| 1 | Skarn |
| Rank | Characteristic |
|---|---|
| 1 | Stratabound |
Mono - Iron deposits of Ontario
Publication Number: MDC011 Scale: Date: 1968
Author: Shklanka R.
Publisher Name: Ontario Dept. of Mines
MonoMap - Geology of base metal, precious metal, iron, and molybdenum deposits in the Pembroke-Renfrew area
Publication Number: MDC020 Scale: Date: 1980
Author: Carter T.R., Colvine A.C., Meyn H.D.
Publisher Name: Ontario Geological Survey
Mono - Metallogeny of the Grenville Province, southeastern Ontario
Publication Number: OFR5515 Scale: Date: 1984
Author: Carter T.R.
Publisher Name: Ontario Geological Survey
Map - Geological series, base and precious metals, iron and molybdenum deposits of Pembroke-Renfrew area, southern Ontario
Publication Number: P2211 Scale: 1:126,720 Date: 1979
Author: Carter T.R., Storey C.C.
Publisher Name: Ontario Geological Survey
Map - Dungannon and Mayo townships, County of Hastings, Ontario
Publication Number: M1955-08 Scale: 1:31,680 Date: 1997
Author: Hewitt D.F., James W.
Publisher Name: Ontario Dept. of Mines
Map - Precambrian Geology, Bancroft Area
Publication Number: P3385 Scale: 1:50,000 Date: 1998
Author: Lumbers S.B., Vertolli V.M.
Publisher Name: Ontario Geological Survey
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