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.
References in periodicals archive ?
Slope stability and landslides in proglacial varved clays of western Estonia.
Comparison between chironomid-inferred July temperatures and meteorological data AD 1850-2001 from varved lake Silvaplana, Switzerland.
A diatom-inference model for nutrients screened to reduce the influence of background variables: Application to varved sediments of Greifensee and evaluation with measured data.
High-frequency paleoclimate signals from Foulden Maar, Waipiata Volcanic Field, Southern New Zealand: an Early Miocene varved lacustrine diatomite deposit Sedimentary Geology 222:98-110.
Lake Timiskaming (100 km long, 200 m maximum depth) is the postglacial successor to glacial Lake Barlow; Barlow varved clays are present below the floor of Lake Timiskaming as far south as the McConnell Moraine (Fig.
The other type of sand is formed as a result of submarine erosion of Late Pleistocene varved clays up to 30 cm thick (alternating varved horizontal layers of brown clays and grey silty layers) are located in the nearshore, whereas below the sand accretion terrace on the bottom surface there are traces of submarine erosion, indicating sediment transport in NW direction.
(1995): Filling the Delaware Basin: Hydrologic and climatic controls on the Upper Permian Castile Formation varved evaporite.
The role of biogeochemical cycling for the formation and preservation of varved sediments in Soppensee (Switzerland).
The till is overlain by glaciolacustrine sands, silts or varved clays, up to 25 m in thickness.
Both these sites are located on the riverbank where varved clays underlie the studied deposits and landslides are quite common, thus one can suspect that these deposits are not in situ position.
TV tarted / varved TY patent / payeny TW tillot / willow TZ Tantalian / Zanzalian UV euouae / evovae UY tutu / Ty Ty (GA)