The major rock units within the area investigated
are the Permian Chilliwack Group, the Upper Lower Jurassic -
lower Middle Jurassic Cultus Formation, and the Upper Jurassic
Lower Cretaceous Vedder Mountain Sediments. The Chilliwack
rocks examined consist of four limestone units, a thick
volcanic sequence, a conglomerate and argillites. The
Cultus rocks consist of argillite, shale, graywacke and
clastic limestone, The Vedder Mountain Sediments are graywackes,
argillites and conglomerates. A tabular body of
igneous rock and a schistose cherty rock are included in
the sequence.
The regional strike is to the north-east. Most
of the rocks in the area are strongly fractured. The Cultus
Formation is folded into a series of overturned isoclinal
folds with axial planes striking north east and dipping south
east. The strongly folded Chilliwack rocks are thrust over
the Cultus rocks from the south and south east. The relationship
of the Vedder Mountain sediments to the other major
rock units is unknown. / Science, Faculty of / Earth, Ocean and Atmospheric Sciences, Department of / Graduate
| Identifer | oai:union.ndltd.org:UBC/oai:circle.library.ubc.ca:2429/41671 |
| Date | January 1956 |
| Creators | Hillhouse, Douglas Neil |
| Publisher | University of British Columbia |
| Source Sets | University of British Columbia |
| Language | English |
| Detected Language | English |
| Type | Text, Thesis/Dissertation |
| Rights | For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use. |
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