Blue Mountain Formation
Blue Mountain Formation | |
---|---|
Stratigraphic range: | |
![]() Blue Mountain Formation outcropping along the Little Rouge Creek. | |
Type | Geological formation |
Sub-units | Rouge River Member |
Underlies | Georgian Bay Formation |
Overlies | Lindsay Formation |
Thickness | Up to 76 metres (250 ft) |
Lithology | |
Primary | Shale |
Other | Limestone, siltstone |
Location | |
Region | Southern Ontario, |
Country | Canada |
Type section | |
Named for | Blue Mountain |
Named by | W. A. Parks |
Year defined | 1928 |
The Blue Mountain Formation (previously the Whitby Formation) is a geological formation of Upper Ordovician age (Maysvillian Stage), which outcrops in Ontario, Canada from Nottawasaga Bay southeastward to the Toronto area.[1][2]
References
[edit]- ^ "Blue Mountain Formation". WEBLEX Canada. Natural Resources Canada. Retrieved April 17, 2017.
- ^ Béland Otis, C. (2015). Upper Ordovician organic-rich mudstones of Southern Ontario : drilling project results (PDF). Sudbury: Ministry of Northern Development and Mines. pp. 8–9. ISBN 9781460669013.