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Geological Society, London, Special Publications; 2003; v. 211; p. 87-98;
DOI: 10.1144/GSL.SP.2001.211.01.08
© 2003 Geological Society of London

Part II Fluvial and Alluvial Fan Environments

Sedimentary architecture and post-glacial evolution of Cheekye fan, southwestern British Columbia, Canada

Csaba Ékes1,2 & Pierre Friele3

1 Department of Geography, Simon Fraser University, Burnaby, B.C., Canada, V5A 1S6 ekes{at}sfu.ca
2 Terraprobe Geoscience Corp., 5210 Sunningdale Road, Burnaby, B.C., Canada, V5B 1M5
3 , Box 612, Squamish, B.C., Canada, V0N 3G0

The purpose of this paper is to examine the internal architecture and post-glacial evolution of Cheekye fan, British Columbia, Canada. Analysis of a large database of ground penetrating radar (GPR) profiles has allowed the identification of ten reflection configurations that characterize this high-energy environment. GPR profiles augmented with test-pit, well-log and radiocarbon data provided detailed subsurface information and revealed the large-scale internal architecture and Holocene sedimentation history of Cheekye fan. Based on a shift in reflection configuration with depth, GPR data appears to record a change in the mode of deposition through time. This data suggests that Cheekye fan is a paraglacial fan, largely a product of the geological past. This fact should be taken into consideration when making future hazard estimates.





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C. S. Bristow and H. M. Jol
An introduction to ground penetrating radar (GPR) in sediments
Geological Society, London, Special Publications, 2003; 211: 1 - 7.
[Abstract] [PDF]