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Blue Mountain Formation
Geological formation in Canada / From Wikipedia, the free encyclopedia
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]
Quick Facts Type, Sub-units ...
Blue Mountain Formation | |
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Stratigraphic range: Maysvillian | |
![]() 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 |
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