Skoki Formation
Lithology and deposition
The Skoki Formation formed as a shallow marine shelf along the western shoreline of the North American Craton during Early to Middle Ordovician time. Most of the original limestone was subsequently altered to dolomite. Many beds include quartz sand and silt, and some include layers of brown argillite.
Distribution and stratigraphic relationships
The Skoki is present in the Canadian Rockies of Alberta and British Columbia. It reaches a thickness of up to 186 metres (610 ft) in the southern Rockies and about 500 metres (1800 ft) in the northern Rockies. It conformably overlies the Outram Formation or the Tipperary Quartzite, depending on the location, and underlies the Owen Creek Formation.
Paleontology
The Skoki Formation contains several genera of brachiopods, as well as gastropods, conodonts, cephalopods, trilobites, echinoderms, stromatolites, corals, and oncolites.
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. 1928. Pre-Devonian Paleozoic formations of the Cordilleran Provinces of Canada; Part 5. Smithsonian Miscellaneous Collections, vol. 75, no. 5, p. 175-368.
- ^ Slind, O.L., Andrews, G.D., Murray, D.L., Norford, B.S., Paterson, D.F., Salas, C.J., and Tawadros, E.E., Canadian Society of Petroleum Geologists and Alberta Geological Survey (1994). "The Geological Atlas of the Western Canada Sedimentary Basin (Mossop, G.D. and Shetsen, I., compilers), Chapter 8: Middle Cambrian and Early Ordovician Strata of the Western Canada Sedimentary Basin". Retrieved 2018-07-13.
{{cite web}}: CS1 maint: multiple names: authors list (link) - ^ Aitken, J.D. 1966. Middle Cambrian to Middle Ordovician cyclic sedimentation, southern Rocky Mountains of Alberta. Bulletin of Canadian Petroleum Geology, vol. 14, no. 6, p. 405-441.
- ^ Alberta Geological Survey, 2013. "Alberta Table of Formations; Alberta Energy Regulator". Retrieved 1 May 2018.
{{cite web}}: CS1 maint: numeric names: authors list (link)
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.