Ghost River Formation
The Ghost River Formation is a now-abandoned name for a geologic formation that encompassed Cambrian to Middle Devonian strata in the Rocky Mountains of southwestern Alberta, Canada.[1] It was established by C.D. Walcott in 1923.[2] The name was abandoned because of uncertainty about the age of the strata that it encompassed.[3]
| Ghost River Formation Stratigraphic range: Cambrian to Middle Devonian | |
|---|---|
| Type | Formation (abandoned)[1] |
| Thickness | 87 metres (290 ft)[1] |
| Location | |
| Coordinates | 51°44′00″N 115°43′30″W |
| Region |  |
| Country | .svg.png.webp){kind=small} |
| Type section | |
| Named for | Ghost River |
| Named by | C.D. Walcott, 1923[2] |
The type section of the Ghost River Formation contained strata that are now subdivided into several Cambrian formations, unconformably overlain by Middle Devonian strata now assigned to the Yahatinda Formation. The latter are contained in a channel eroded into the Cambrian rocks and include a variety of plant fossils and remains of fresh water fish.[4]
References
- Glass, D.J. (editor) 1997. Lexicon of Canadian Stratigraphy, vol. 4, Western Canada including eastern British Columbia, Alberta, Saskatchewan and southern Manitoba. Canadian Society of Petroleum Geologists, Calgary, 1423 p. on CD-ROM. ISBN 0-920230-23-7.
- Walcott, C.D. 1923. Nomenclature of some post-Cambrian and Cambrian Cordilleran formations: Cambrian geology and paleontology, Part 4. Smithsonian Miscellaneous Collection, v. 75, p. 1-51.
- Aitken, J.D. 1963. Ghost River type section. Bulletin of Canadian Petroleum Geology, v. 11, p. 267-287.
- McGregor, D.C. 1963. Paleobotanical evidence for the age of basal Devonian strata at Ghost River, Alberta. Bulletin of Canadian Petroleum Geology, vol. 11, no. 3, p. 267-287.
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