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varve

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varve, in geology, pair of thin sedimentary layers formed annually by seasonal climatic changes. Usually found in glacial lake deposits, varves consist of a coarse-grained, light-colored summer deposit and a finer-grained, dark-colored winter deposit formed when fine sediment settles out from the water under the ice cover. Varves, and the pollen they contain, are useful for interpreting recent climatic history.
varve [′värv]
(geology)
A sedimentary bed, layer, or sequence of layers deposited in a body of still water within a year's time, and usually during a season. Also known as glacial varve.
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Somebody can say to you that the lake bed is made up of annual layers - I think the technical term is varves - but Adrian knows the core so well he can point to a pale layer and say 'that's the big flood of 18-whatever', and talk you through 2000 years of history.
Life's as clear as mud and I really love it; Fossil-hunter Hermione ... by Daily Record (Glasgow, Scotland)
VARVE A Armenian order of clergy B Type of walrus C Layer of clay deposited in still water who am I?
TIME OUT by The Journal (Newcastle, England)
Sayles (1919) reviewed what was known of Pleistocene glaciolacustrine varves and used this model to explain the presence of banded and laminated slates commonly found with Permian and Precambrian glacials.
Frozen in time: concepts of 'global glaciation' from 1837 (die ... by Eyles, Nicholas / Geoscience Canada
 
 
 
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