Upper Devonian Echinoderm Debris Beds with Graded Texture, District of Mackenzie, Northwest Territories

A sequence of Upper Devonian echinoderm debris beds with graded texture, interbedded with shale, overlies the Middle Devonian Ramparts Formation in the subsurface at McDermott Canada GCO South Maida Creek G-56 well on the south side of Mackenzie River near Carcajou Ridge.The interval of echinoderm d...

Full description

Bibliographic Details
Published in:Canadian Journal of Earth Sciences
Main Author: MacKenzie, W. S.
Format: Article in Journal/Newspaper
Language:English
Published: Canadian Science Publishing 1973
Subjects:
General Earth and Planetary Sciences
Northwest Territories
Mackenzie River
Canada
Carcajou
Maida Creek
Mackenzie river
Online Access:http://dx.doi.org/10.1139/e73-051
http://www.nrcresearchpress.com/doi/pdf/10.1139/e73-051
Description
Summary:A sequence of Upper Devonian echinoderm debris beds with graded texture, interbedded with shale, overlies the Middle Devonian Ramparts Formation in the subsurface at McDermott Canada GCO South Maida Creek G-56 well on the south side of Mackenzie River near Carcajou Ridge.The interval of echinoderm debris can be divided into thick 2- to 7-ft (0.6- to 2.1-m) beds of graded skeletal remains lacking shale, and thinner intervals from 1 to 2 ft (0.3 to 0.6 m) thick of graded skeletal remains with interbedded black shale. The echinoderm beds, not present in the subsurface at nearby wells, are probably of local origin. Similar beds of echinoderm debris with graded texture, also of probable local origin, crop out at Powell Creek in the Mackenzie Mountain foothills.

Similar Items