Ontario Geological Survey
Permanent Link to this Record:
MDI31C12SE00140
| Record Name(s) | Road Section - 1993 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1993-Apr-12 |
| Date Last Modified | 2023-Apr-19 |
| Created By | |
| Revised By |
Primary Commodities: Slate
Township or Area: Madoc
Latitude: 44° 30' 11.57" Longitude: -77° 29' 59.5"
UTM Zone: 18 Easting: 301276.37 Northing: 4930805.91 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31C12SE
Point Location Description: Precise
Location Method: Field Visit
Access Description: The outcrop is along Hwy 7 at the junction with the old Madoc road, 0.5 km west of the intersection with the Hastings County Road 23. There are outcrops north and south of the present Hwy 7; and in an old road cut on the south verge of the road. (OFR 5751, p54).
Province: Grenville
Subprovince: Central Metasedimentary Belt
Terrane: Elzevir
Domain: Belmont
| Rock Type | Rank | Composition | Texture | Relationship | Conglomerate | 1 | Quartz Pebble | Adjacent |
|---|
Apr 19, 2023 (Mateo Dorado-Troughton) - The old roadcut features a lesser known outcropping of the Precambrian-Paleozoic unconformity. Here the Shadow Lake formation unconformably overlies steeply-dipping Precambrian slate.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Magnetite | Economic | Ore | ||||
| 2 | Hematite | Economic | Ore |
Date: Apr 19, 2023
Geologist: Mateo Dorado-Troughton
Notes: Visited by the Southern Ontario RLUG, RRG, DG, and DGA for reconnaissance.
Mono - The Precambrian-Paleozoic unconformity and related mineralization in southeastern Ontario
Publication Number: OFR5751 Page: 54-8 Date: 1991
Author: DiPrisco G., Springer J.S.
Publisher Name: Ontario Geological Survey
Location:
Book - Peterson's Guide Book 1978, Guide #95
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