Integrated Stratigraphy of the Lower and Middle Fernie Formation in Alberta and British Columbia, western Canada

Hall, R.; McNicoll, V.; Gröcke, D.R.; Craig, J.; Jonhston, K.

Abstract

The lower and middle parts of the Fernie Formation in central-western Alberta and south-eastern British Columbia, ranging from Pliensbachian to ?Bathonian (Early to Middle Jurassic) in age, and consisting mainly of fossiliferous dark shales and black limestones, contain bentonitic clay horizons which have yielded radiometric ages using U-Pb analysis of zircon crystals. Here we report six new ages from the lowermost Red Deer Member (188.3 +1.5/-1 Ma); Highwood Member (ca. 173 Ma and 166.6 ± 0.2 Ma); and Grey Beds (167.0 ± 0.2 Ma, 165.6 ± 0.3 Ma, and 165.4 ± 0.3 Ma). Some of these bentonites are associated with ammonites and coccoliths which provide biostratigraphic constraints. Strontium and carbon and oxygen isotopes measured from belemnite rostra have been compared in two sections and the resulting curves are compared with those from western Europe.

Citation

Hall, R., McNicoll, V., Gröcke, D., Craig, J., & Jonhston, K. (2004). Integrated Stratigraphy of the Lower and Middle Fernie Formation in Alberta and British Columbia, western Canada. Rivista Italiana di Paleontologia e Stratigrafia, 110(1), 61-68. https://doi.org/10.13130/2039-4942/6264

• Journal Article Type: Article
• Acceptance Date: Sep 30, 2003
• Publication Date: Apr 1, 2004
• Deposit Date: May 19, 2015
• Publicly Available Date: Jan 26, 2017
• Journal: Rivista Italiana di Paleontologia e Stratigrafia
• Electronic ISSN: 2039-4942
• Publisher: Università degli Studi di Milano
• Peer Reviewed: Peer Reviewed
• Volume: 110
• Issue: 1
• Pages: 61-68
• DOI: https://doi.org/10.13130/2039-4942/6264
• Public URL: https://durham-repository.worktribe.com/output/1428399