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The Southern Glacial Maximum 65,000 years ago and its unfinished termination

Schaefer, Joerg M., Putnam, Aaron E., Denton, George H., Kaplan, Michael R., Birkel, Sean, Doughty, Alice M., Kelley, Sam, Barrell, David J.A., Finkel, Robert C., Winckler, Gisela, Anderson, Robert F., Ninneman, Ulysses S., Barker, Stephen, Schwartz, Roseanne, Andersen, Bjorn G. and Schluechter, Christian 2015. The Southern Glacial Maximum 65,000 years ago and its unfinished termination. Quaternary Science Reviews 114 , pp. 52-60. 10.1016/j.quascirev.2015.02.009

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Abstract

Glacial maxima and their terminations provide key insights into inter-hemispheric climate dynamics and the coupling of atmosphere, surface and deep ocean, hydrology, and cryosphere, which is fundamental for evaluating the robustness of earth's climate in view of ongoing climate change. The Last Glacial Maximum (LGM, ∼26–19 ka ago) is widely seen as the global cold peak during the last glacial cycle, and its transition to the Holocene interglacial, dubbed 'Termination 1 (T1)', as the most dramatic climate reorganization during this interval. Climate records show that over the last 800 ka, ice ages peaked and terminated on average every 100 ka (‘100 ka world’). However, the mechanisms pacing glacial–interglacial transitions remain controversial and in particular the hemispheric manifestations and underlying orbital to regional driving forces of glacial maxima and subsequent terminations remain poorly understood.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Earth and Ocean Sciences
Subjects: Q Science > QE Geology
Uncontrolled Keywords: Ice ages; Terminations; Marine Isotope Stage 4; Paleoclimate; Last Glacial Maximum; Moraines; Surface exposure dating; Cosmogenic nuclides
Publisher: Elsevier
ISSN: 0277-3791
Date of Acceptance: 9 February 2015
Last Modified: 11 Mar 2019 15:58
URI: http://orca.cf.ac.uk/id/eprint/71263

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