Bramertonian Stage

Bramertonian Stage

The Bramertonian Stage is the name for an early Pleistocene stage used in the British Isles. It precedes the Pre-Pastonian Stage (Baventian Stage). It derives its name from Bramerton Pits in Norfolk, where the deposits can be found on the surface. The exact timing of the beginning and end of the Bramertonian Stage is currently unknown. It is only known that it is equivalent to the Tiglian C1-4b Stage of Europe and early Pre-Illinoian Stage of North America. It lies somewhere in time between Marine Oxygen Isotope stages 65 to 95 and somewhere between 1.816 to 2.427 Ma (million years ago).McMillan, A.A., 2005, "A provisional Quaternary and Neogene lithostratigraphic framework Great Britain." Netherland Journal of Geosciences. vol. 84, no. 2, pp, 87-107.] Gibbard, P.L., S. Boreham, K.M. Cohen and A. Moscariello, 2007, [http://www.quaternary.stratigraphy.org.uk/correlation/POSTERSTRAT_v2007b_small.jpg"Global chronostratigraphical correlation table for the last 2.7 million years v. 2007b."] , jpg version 844 KB. Subcommission on Quaternary Stratigraphy, Department of Geography, University of Cambridge, Cambridge, England] Lisiecki, L.E., 2005, [http://www.lorraine-lisiecki.com/LR04_MISboundaries.txt "Ages of MIS boundaries."] [http://www.lorraine-lisiecki.com/stack.html LR04 Benthic Stack] Boston University, Boston, MA] Lisiecki, L.E., and M.E. Raymo, 2005, "A Pliocene-Pleistocene stack of 57 globally distributed benthic d18O records." Paleoceanography. vol. 20, PA1003, doi:10.1029/2004PA001071]

During this stage, the climate was temperate with evidence for mixed oak forest in southern England and the arrival of hemlock. Evidence from East Anglia suggests sea levels were higher then than they are today.

References

External Links

*anonymous, 2007a, [http://www.quaternary.stratigraphy.org.uk/correlation/chart.html "Global correlation tables for the Quaternary."] Subcommission on Quaternary Stratigraphy, Department of Geography, University of Cambridge, Cambridge, England.

Further reading

*Bowen, D.Q., 1978, "Quaternary geology: a stratigraphic framework for multidisciplinary work. " Pergamon Press, Oxford, United Kingdom. 221 pp. ISBN 978-0080204093
*Ehlers, J., P. L. Gibbard, and J. Rose, eds., 1991, "Glacial deposits in Great Britain and Ireland." Balkema, Rotterdam. 580 pp ISBN 978-9061918752
*Mangerud, J., J. Ehlers, and P. Gibbard, 2004, "Quaternary Glaciations: Extent and Chronology 1: Part I Europe", Elsevier, Amsterdam. ISBN 0-444-51462-7
*Sibrava, V., Bowen, D.Q, and Richmond, G.M., 1986, "Quaternary Glaciations in the Northern Hemisphere, Quaternary Science Reviews", vol. 5, pp. 1-514.

ee also

*Ice age
*Glacial period
*Last glacial period
*Timeline of glaciation

[Category:Pleistocene


Wikimedia Foundation. 2010.

Игры ⚽ Поможем сделать НИР

Look at other dictionaries:

  • Pre-Pastonian Stage — The Pre Pastonian Stage or Baventian Stage, is the name for an early Pleistocene stage used in the British Isles. It precedes the Pastonian Stage and follows the Bramertonian Stage. This stage ended 1.806 Ma (million years ago) at the end of… …   Wikipedia

  • Pre-Illinoian Stage — The Pre Illinoian Stage is the name currently used for early and middle Pleistocene glacial and interglacial deposits within North America. As the oldest stage in the North American nomenclature, it precedes the Illinoian Stage.Hallberg, G.R.,… …   Wikipedia

  • Glacial period — A glacial period is an interval of time within an ice age that is marked by colder temperatures and glacier advances. Interglacials, on the other hand, are periods of warmer climate within an ice age. The last glacial period ended about 10,000 to …   Wikipedia

  • Bramerton — is a village in South Norfolk 4¾ miles (7½ km) south east of Norwich, just north of the A146 and south of the River Yare.In the 2001 census it contained 158 households and a population of 350. [ [http://www.south… …   Wikipedia

  • Bramerton Pits — is a Site of Special Scientific Interest north of the village of Bramerton in Norfolk on the southern banks of the River Yare , where the Norwich Crag comes to the surface: * Bramerton Common Pit is adjacent to Bramerton Common near Woods End. *… …   Wikipedia

  • Pre-Illinoian — The Pre Illinoian Stage is often synonymous with Pre Illinoian glacial[1][2] and used by Quaternary geologists for the early and middle Pleistocene glacial and interglacial periods of geologic time in North America from 2.5 Ma 500,000 years ago,… …   Wikipedia

  • Classic Glacial/Cold and Interglacial/Warm Episodes*, Table — ▪ Table oxygen 18 stage central United States Great Britain northwestern Europe 1 Holocene Holocene, Flandrian Holocene, Flandrian Wisconsinan Devensian Weichselian 2 late late late 3 middle middle middle …   Universalium

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”