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Geology; February 2000; v. 28; no. 2; p. 99-102; DOI: 10.1130/0091-7613(2000)28<99:DFAAOT>2.0.CO;2
© 2000 Geological Society of America
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Drowned forests and archaeology on the continental shelf of British Columbia, Canada

Daryl W. Fedje1 and Heiner Josenhans2

1 Parks Canada, Victoria, British Columbia V8W 2G5, Canada
2 Geological Survey of Canada, Dartmouth, Nova Scotia B2Y 4A2, Canada

We have used high-resolution digital terrain imaging and sea-floor sampling to reveal drowned late glacial to early postglacial terrestrial landscapes at water depths as great as 150 m. In situ tree stumps and shellfish-rich paleobeaches are present on these drowned landscapes. A stone tool encrusted with barnacles and bryozoa was recovered from a drowned delta flood plain now 53 m below mean sea level. This is the first tangible evidence that the formerly subaerial broad banks of the western North American Continental Shelf may have been occupied by humans in earliest Holocene and possibly late-glacial time. Analyses (14C) of the drowned terrestrial and intertidal deposits were used to refine the local sea-level curve, which shows very rapid change within this glacio-isostatically dynamic region.

Key Words: Keywords: sea level • archaeology • drowned forest • Haida




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 Geological Society, London, Special PublicationsHome page
J. V. Barrie and K. W. Conway
Contrasting glacial sedimentation processes and sea-level changes in two adjacent basins on the Pacific margin of Canada
Geological Society, London, Special Publications, January 1, 2002; 203(1): 181 - 194.
[Abstract] [PDF]


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