April 10th - April 10th Thursday 11:11:00 AM The End of the Last Ice Age Climate and Environmental Change during the Last Deglaciation Chapters 12

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April 10 th , Thursday 22/04/2008 12:11:00 The End of the Last Ice Age:  Climate and Environmental Change during the Last  Deglaciation Chapters 12 and 13 from the last glacial max, through the deglaciation, and the holocene, to the  present interglacial (the last 10,000 yrs or so) The World at the Last Glacial Maximum: Twice the global ice volume (>10x the cuttent NH ice volume) Global ocean colder; north atlantic ocean MUCH colder o Less sea ice because there is less ocean and where there used to be  ocean there is more land exposed Major lowering of sea level.  130 m lower than present The NH ice sheet were major topographich features…wide mountain ranges  that physically impacted the general circulation Alaska and russia connected The north american ice sheet (laurentide) was so large that it actually split the  jet stream into two branches Changed jet stream and lower temps (reduced evaporation) led to the  expansion of closed-basin lakes in the  great basin o The expansion of great salt lake into the much larger lake bonneville  Aridity and production of the fine sediment by glacial erosion led to dusty  atimpshere and accumulation of loess. And deserts expanded o Less vegitation because its arid o Planet windier because the equator to pole temp gradient is increased And in the americas and europe a strange assortment of large mammals lived 
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This note was uploaded on 04/22/2008 for the course GEOL 3040 taught by Professor Miller during the Spring '08 term at Colorado.

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April 10th - April 10th Thursday 11:11:00 AM The End of the Last Ice Age Climate and Environmental Change during the Last Deglaciation Chapters 12

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