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Crawford Lake

Country: Canada
Varve Category: endogenic varves
Archive Type: lacustrine sediments
Lake Type: glacial lake
Elevation: 279.0
Length of Record: 1000
DOI / Reference Link: Access Link
Reference: Ekdahl, E.J., Teranes, J.L., Guilderson, T.P., Turton, C.L., McAndrews, J.H., Wittkop, C.A. & Stoermer, E.F., 2004. Prehistorical record of cultural eutrophication from Crawford Lake, Canada. Geology 32, 745–748.
Picture Authors: Matti Saarnisto
group picture with coring equipment

Description: John (Jock) McAndrews (University of Toronto) on the ice of Crawford Lake in January 1972 carrying an aluminium tube full of dry ice for the in situ freezing method.
Picture Type: field image
core from the lake, black mud compared to white snow

Description: Freeze core from Crawford Lake (January 1972) with calcareous varves.