Earth:Lake Albany

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Proglacial and prehistoric lakes of New England during the end of the Wisconsin Glacial Epoch of the Pleistocene Era. Based on map from 'Re-evaluation of Antevs' New England varve chronology and new radiocarbon dates of sediments from glacial Lake Hitchcock'; JOHN C. RIDGE and FREDERICK D. LARSEN

Glacial Lake Albany was a prehistoric North American proglacial lake that formed during the end of the Wisconsinan glaciation.[1][2] It existed between 15,000 and 12,600 years ago[3] and was created when meltwater from a retreating glacier, along with water from rivers such as the Iromohawk, became ice dammed in the Hudson Valley.[1][4] Organic materials in Lake Albany deposits have been carbon dated to approximately 11,700 years ago.[5] The lake spanned approximately 160 miles (260 km) from present-day Poughkeepsie to Glens Falls.[1][3][6]

Lake Albany drained about 10,500 years ago through the Hudson River due to post-glacial rebound.[1][6][7] When the lake drained it exposed the sandy and gravelly glaciolacustrine deposits left by the glacier, along a broad plain just west of Schenectady, where the Mohawk emptied into the lake.[8] Dune and deltaic sands, containing lenses of silty sand, silt and clay,[9] compose the topsoil which now underlies the Albany Pine Bush.[10] Beneath the surficial deposits are lake-bottom silt and clay, which overlie till and shale bedrock.[9] A small rill caused by the lake's drainage created Patroon Creek, Sand Creek, Lisha Kill, Shaker Creek, Delphus Kill and the Salt Kill in the town of Colonie, New York.[11]

See also

References

  1. 1.0 1.1 1.2 1.3 "Origins of the Albany Pine Bush". Albany Pine Bush Preserve Commission. http://www.albanypinebush.org/preserve_information/natural_cultural_history/natural_cultural_history.htm. 
  2. Dawicki, Shelley (2004-12-15). "Catastrophic Flooding from Ancient Lake May Have Triggered Cold Period". http://www.whoi.edu/page.do?pid=9779&tid=282&cid=2078&ct=162. 
  3. 3.0 3.1 "How did this land form?". SUNY ESF. August 2001. p. 2. http://www.esf.edu/rwls/research/karnerblue/module7.pdf. 
  4. De Simone, David J.; Wall, Gary R.; Miller, Norton G.; Rayburn, John A.; Kozlowski, Andrew L. (May–June 2008). "Glacial Geology of the Northern Hudson through Southern Champlain Lowlands". Northeastern Friends of the Pleistocene. University of Maine. http://www.geology.um.maine.edu/friends/pdf/NEFOP2008.pdf. 
  5. Franzi, David A.; Rayburn, John A.; Knuepfer, Peter L.K.; Cronin, Thomas M. (June 2007). "Late Quaternary History of Northeastern New York and Adjacent Parts of Vermont and Quebec". Northeastern Friends of the Pleistocene. University of Maine. http://www.geology.um.maine.edu/friends/pdf/2007Guide.pdf. 
  6. 6.0 6.1 "Geological History of the New York Area". Skidmore College. http://www.skidmore.edu/sssg4/environment/geology.htm. 
  7. "State University of New York at Albany - Edward Durrell Stone's architecture, atmospheric science, and the geology under it". University at Albany, SUNY. http://www.albany.edu/geosciences/sunyageo.html. 
  8. "Surficial Geology: Sand Dunes". New York State Geological Survey. http://www.nysm.nysed.gov/nysgs/research/surficial/index.html. 
  9. 9.0 9.1 Williams, John H.; Lapham, Wayne W.; Barringer, Thomas H. (1993). "Application of Electromagnetic Logging to Contamination Investigations in Glacial San-and-Gravel Aquifers". Groundwater Monitoring & Remediation (USGS) 13 (3): 130–131. doi:10.1111/j.1745-6592.1993.tb00082.x. http://water.usgs.gov/ogw/bgas/publications/GWMR_1993/. 
  10. Burger, Joanna (2006). Whispers in the Pines: a Naturalist in the Northeast. Rutgers University Press. p. 29. ISBN 978-0-8135-3794-8. https://books.google.com/books?id=fZgFzfOo_xAC&q=glacial+lake+albany&pg=PT73. Retrieved 2010-10-17. 
  11. "Town of Colonie: A Draft Comprehensive Plan". Town of Colonie. May 2005. p. 23. http://www.colonie.org/pedd/compplan/Appendix%205-5-05.pdf. 

Further reading

External links