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The Wolstonian Stage is a middle stage of the geological history of Earth from approximately 374,000 until 130,000 years ago. It precedes the Last Interglacial (also called the Eemian Stage) and follows the in the British Isles.

It is also approximately analogous to the and stages in northern Europe; the in the ; and the Illinoian Stage in North America. The colder last part from around 194,000 years ago is called the Penultimate Glacial Period.

It is equivalent to Marine isotope stages (MIS) 10 through 6. MIS 10, 8 and 6 were and 9 and 7 were .

It is named after in the English county of .


Description
The Wolstonian Stage is a middle stage of the geological history of Earth that precedes the ( in ) and follows the in the British Isles. The Wolstonian Stage apparently includes three periods of glaciation. The Wolstonian Stage is temporally analogous to the and in northern Europe and the in the , and temporally equivalent to all of the Illinoian Stage and the youngest part of the in North America. It is contemporaneous with the North American Pre-Illinoian A, Early Illinoian, and Late Illinoian glaciations.

The Wolstonian Stage is equivalent to Marine isotope stages 6 through 10.

Britain became an Island during this period (350,000 years ago).Gibbard, Phil (2007). "How Britain Became An Island: The report". Nature Precedings. doi:10.1038/npre.2007.1205.1

It started 374,000 years ago and ended 130,000 years ago.Lisiecki, L.E., 2005, Ages of MIS boundaries. LR04 Benthic Stack Boston University, Boston, MA


Etymology
The Wolstonian Stage was named after the site of in the English county of where corresponding deposits were first identified.


Archaeology
flint tools have been found in Wolstonian deposits.


Pleistocene glaciation
+ Historical names of the "four major" glacials in four regions. ! Region ! Glacial 1 ! Glacial 2 ! Glacial 3 ! Glacial 4
AlpsMindelWürm
North Europe
British IslesWolstonian
Midwest U.S.KansanIllinoianWisconsinan

+ Historical names of interglacials. ! Region ! Interglacial 1 ! Interglacial 2 ! Interglacial 3
Alps
North EuropeWaalianHolsteinian
British Isles
Midwest U.S.Yarmouthian


See also


External links


Further reading

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