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Sandy beaches, hydrocarbon reservoirs, tectonic tilting: It's all about geology
Date:6/29/2012

Boulder, Colo., USA Topics in this new batch of Geology papers posted online 29 June include ecospace utilization; Little Bahama Bank; climatic asynchrony; oceanic crust; sand budgets; the Alpine fault's seismic hazard to New Zealand; volcano behavior; gravity oscillations; chemical weathering in the Critical Zone; giant wave ripples; the location of high peaks as a function of drainage network; and soils as ledgers recording transactions of energy and material between Earth's plants, rocks, water, and atmosphere.

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.

Please discuss articles of interest with the authors before publishing stories on their work, and please make reference to Geology in articles published. Contact Kea Giles for additional information or assistance.

Non-media requests for articles may be directed to GSA Sales and Service, gsaservice@geosociety.org.


Long-term origination rates are reset only at mass extinctions

Andrew Z. Krug and David Jablonski, Dept. of Geophysical Sciences, University of Chicago, 5734 South Ellis Avenue, Chicago, Illinois 60637, USA. Posted online 15 June 2012; doi: 10.1130/G33091.1.

Diversification during recovery intervals is rapid relative to background rates, but the impact of recovery dynamics on long-term evolutionary patterns is poorly understood. Age distributions for cohorts of marine bivalves show that intrinsic origination rates tend to remain constant, shifting only during interval
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Contact: Kea Giles
kgiles@geosociety.org
Geological Society of America
Source:Eurekalert

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