Varved sediments offer a unique situation where the temporal resolution necessary to determine annual to decadal changes relevant to a human lifetime can be achieved.
In addition palecological and astronomical information was obtained from varve thickness measurements, and the composition of annual layers.
In this article we shall examine what a varve is, how they can be used for absolute dating, and when they cannot.
Therefore, it was often termed “the Swedish Varve Chronology” or “the Swedish Time Scale”.
Tied to European Climatic Sequence through pollen analysis of the sediments. BIOLOGICAL: discontinuous, deposited only when activity of bottom-dwelling organisms is suppressed (anoxia), interrupted by layers of homogenized sediment, layers often indistinct, layers thin, hard to count.
The reader may find it useful to go back and re-read the article on glaciers before continuing with this article.
In its original definition, a varve was a sedimentary feature in a proglacial lake, consisting of a couplet of coarse and fine sediment.
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(2000) Varve Dating, in Quaternary Geochronology: Methods and Applications (eds J.