Skip to Main Content
Book Chapter

Jurassic Sections in Foothills of Alberta and Northeastern British Columbia

By
J. Spivak
J. Spivak
Calgary, Alberta
Search for other works by this author on:
Published:
January 01, 1954

Abstract

Jurassic strata of the foothills belt of Alberta and British Columbia have been designated as the Fernie formation after the locality in which they were first recognized. The formation overlies, with erosional unconformity, Triassic or Carboniferous strata and consists of a marine sequence of gray to black shales interbedded with minor amounts of thin sandstones. The upper beds grade through a transition zone into Lower Cretaceous strata which are non-marine and coal-bearing in the southern foothills but vary from non-marine to marine sandstones in the northern foothills. In the latter areas the sandstone sequence contains Jurassic and Lower Cretaceous fossils which suggests the absence of an apparent lithologic or time break between the Jurassic and Cretaceous systems. Fossil evidence from widely separated areas indicates a time range from Sinemurian to Argovian and indicates that the Jurassic seaways were fairly continuous at least in the deeper parts of the Rocky Mountain geo- syncline. This would not necessarily rule out the existence of local uplifts in restricted localities of the area under discussion.

You do not currently have access to this article.

Figures & Tables

Contents

AAPG Special Publication

Western Canada Sedimentary Basin: A Symposium; Sponsored by the Alberta Society of Petroleum Geologists, and the Saskatchewan Society of Petroleum Geologists

Leslie M. Clark
Leslie M. Clark
Search for other works by this author on:
American Association of Petroleum Geologists
ISBN electronic:
9781629812465
Publication date:
January 01, 1954

GeoRef

References

Related

Citing Books via

Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal