slides to accompany discussion on sea level changes since the lgm
TRANSCRIPT
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Source: http://www.ncdc.noaa.gov/paleo/slides/slideset/11/11_178_slide.html
Ice cover during the Last Glacial Maximum (LGM)
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http://bonesandskulls.co.uk/2012/12/29/adriatic-refugium/
During the Last Glacial Maximum (LGM), sea level dropped 120m. As a result, shallow area of the ocean became exposed (shown here in red)
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http://patti-isaacs.com/portfolio/#jp-carousel-201
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Wikimedia Commons: Post-Glacial_Sea_Level.png (Robert A. Rohde)
Post-glacial change• As the ice sheets melted away in the later stages of the last glacial and during the
early part of the Holocene (our current warm interglacial time), sea-level rose.• Sea-level reached a point close to the present level about 8,000 years ago.
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Raised beaches in Scotland
http://www.rsgs.org/ifa/gems/landformraisedbeach.html
There is also geologic evidence of times when sea level was higher than present
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Above are two images of strandlines (raised beaches) in the Varanger Peninsula, on the extreme north coast of Norway -- on the shore of the Arctic Ocean / Barents Sea.
http://brian-mountainman.blogspot.com/2013/10/varanger-isostatic-rebound.html
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http://www3.villanova.edu/conferences/biogeomon/trips.html