| Borsato Formation | |
|---|---|
| Stratigraphic range: Frasnian ~382–373 Ma PreꞒ Ꞓ O S D C P T J K Pg N | |
| Type | Formation |
| Unit of | Fairholme Group |
| Underlies | Borsato Formation |
| Overlies | Ordovician or older formations |
| Thickness | Up to about 240 m (790 ft) |
| Lithology | |
| Primary | Limestone, dolomite |
| Location | |
| Coordinates | 49°23′56″N 114°34′05″W / 49.39889°N 114.56806°W / 49.39889; -114.56806 (Hollebeke Formation) |
| Region |  British Columbia Alberta |
| Country |  Canada |
| Extent | Western Canada Sedimentary Basin & southern Rocky Mountains |
| Type section | |
| Named for | Mount Hollebeke |
| Named by | R.A. Price |
| Year defined | 1965 |
  Hollebeke Formation (Canada)Show map of Canada Hollebeke Formation (Alberta)Show map of Alberta | |
The Hollebeke Formation is a stratigraphic unit of Late Devonian (Frasnian) age. It is present on the western edge of the Western Canada Sedimentary Basin in the southern Rocky Mountains of Alberta and British Columbia. It consists of carbonate rocks, and was named for Mount Hollebeke in the Flathead Range near North Kootenay Pass by R.A. Price in 1965.
Thickness and lithology
The Hollebeke Formation was deposited in a marine environment and ranges in thickness from about 100 to 240 m (328 to 787 ft). The lower part consists of locally silty or argillaceous dolomite and limestone. The upper part is very fine crystalline limestone.
Distribution and relationship to other units
The Hollebeke Formation is present in Rocky Mountains of southeastern British Columbia and southwestern Alberta, west of the Lewis Thrust Fault and south of about 50°N latitude. It unconformably overlies Ordovician or Cambrian formations, or the late Precambrian Purcell Supergroup, depending on the location. It is overlain by the Borsato Formation.
References
- ^ Glass, D.J. (editor) 1997. Lexicon of Canadian Stratigraphy, vol. 4, Western Canada including eastern British Columbia, Alberta, Saskatchewan and southern Manitoba, p. 579. Canadian Society of Petroleum Geologists, Calgary, 1423 p. on CD-ROM. ISBN 0-920230-23-7
- ^ Price, R.A., 1965. Flathead map-area, British Columbia and Alberta. Geological Survey of Canada, Memoir 336.
- Alberta Geological Survey. "Alberta Table of Formations, May 2019" (PDF). Alberta Energy Regulator. Retrieved 24 March 2020.
| Western Canada Sedimentary Basin | |
|---|---|
| Hydrocarbon history | |
| Depositional regions |
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| Canadian Rockies |
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