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Alimmainen Savijärvi

Country: Finland
Varve Category: mixed varves
Archive Type: lacustrine sediments
Lake Type: glacial lake
Elevation: 116.0
Length of Record: 10295
DOI / Reference Link: Access Link
Reference: Ojala, A.E.K., Heinsalu, A., Saarnisto, M. & Tiljander, M., 2005. Annually laminated sediments date the drainage of the Ancylus Lake and early Holocene shoreline displacement in central Finland. Quaternary International 130, 63-73.
Picture Authors: Antti Ojala
up close with two different lightings

Description: Minerogenic matter transported into a lake during spring snowmelt-floods form the base of a varve, i.e. the beginning of a new depositional cycle. Organic matter, mainly from lacustrine production, is accumulated during the following summer, autumn and winter, completing the annual rhythm of sedimentation. Micrograph with normal (left) and polarized light (right).
Picture Type: microscopic