Title Glaciations in North and South America from the Miocene to the last glacial maximum : comparisons, linkages and uncertainties / Nat Rutter [and others]

Published Dordrecht ; New York : Springer, ©2012

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Description 1 online resource Series SpringerBriefs in earth system sciences, 2191-589X SpringerBriefs South America and the Southern Hemisphere SpringerBriefs in earth system sciences. SpringerBriefs in earth system sciences. SpringerBriefs South America and the Southern Hemisphere Contents The Glacial and Loess Record of Southern South America -- The Glacial Record of Northern South America -- The Glacial and Loess Record of North America -- Comparison of South and North American Glaciations -- Chinese Loess/Paleosol Record -- Nat Rutter, Andrea Coronato, Karin Helmens, Jorge Rabassa and Marcelo Zárate Summary Annotation Improved dating methods have increased our ability to more precisely determine the timing and durations of glaciations. Utilizing glacial and loess deposits, we have compared glaciations that occurred in North and South America in order to determine if events are synchronous or not, to explore forcing mechanisms, and to compare glaciations with cold periods of the Marine Oxygen Isotope stages and the loess/paleosol records of China. Stratigraphic sections containing a variety of glacial deposits, some with interbedded volcanics, as well as loess deposits, were used in reconstructing the glacial history. The Late Pleistocene (Brunhes Chron) Last Glacial Maximum is recognized in mountain and continental areas of North America but only in the mountains of South America. Commonly our comparisons indicate roughly synchronous glaciations on the two continents, whereas other glaciations are more elusive and difficult to compare. Although our comparisons are at low resolutions, the results suggest that Milankovitch forcing is most likely the dominant trigger for hemispheric glaciation modified by local factors Analysis Geography Geology Paleontology Climatic changes Earth Sciences Climate Change klimaatverandering climatic change paleontologie palaeontology aardwetenschappen geologie Geology (General) Geologie (algemeen) Bibliography Includes bibliographical references Notes English Subject Glacial epoch -- North America Glacial epoch -- South America Glaciology -- North America Glaciology -- South America SCIENCE -- Earth Sciences -- Geography. SCIENCE -- Earth Sciences -- Geology. Glacial epoch Glaciology North America South America Form Electronic book Author Rutter, Nathaniel W. ISBN 9789400743991 9400743998

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