Boulder, Colo., USA New Geology postings include understanding the "Mystery Interval" during the last deglaciation in the Northern Hemisphere; examining topographic change and recovery after the 2011 Tohoku-oki tsunami; asking whether self-mutilation or self-amputation in sea lilies was an adaptive response during the Paleozoic; discovering that powerfully erosive behavior can occur even on the lee side of a topographic barrier; and demonstrating for the first time that the PTB biotic crisis was probably triggered by enormous Plinian eruptions.
Highlights are provided below. Geology articles published ahead of print can be accessed online at http://geology.gsapubs.org/content/early/recent. All abstracts are open-access at http://geology.gsapubs.org/; representatives of the media may obtain complimentary Geology articles by contacting Kea Giles at the address above.
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Abrupt landscape change post-6 Ma on the central Great Plains, USA
R.A. Duller et al., Dept. of Earth Science and Engineering, Imperial College, London SW7 2AZ, UK, and Dept. of Earth & Ocean Sciences, University of Liverpool, Liverpool L69 3GP, UK. Posted online ahead of print 9 Aug. 2012; doi: 10.1130/G32919.1.
An increase in energy is required to deeply dissect and erode mountainous landscapes, work that is accomplished primarily by sediment-charged water. This energy increase can be provided by either increa
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Geological Society of America