ResearcherS used two behavioral prompts to compare increases in safety belt use: a Click It or Ticket prompt or a Flash-for-Life prompt. Participants were 1,822 unbuckled drivers exiting two student parking lots of a large university. Research assistants identified unbuckled drivers, flashed one of the two prompts, and recorded whether drivers buckled after the prompt and the drivers' facial ex...

A calibrated radiocarbon database of late Quaternary volcanic eruptions R. U. Bryson, R. A. Bryson, and A. Ruter National Park Service, Mojave National Preserve, 2701 Barstow Road, Barstow, CA 92311, USA Center for Climatic Research, University of Wisconsin-Madison, 1225 W. Dayton St., Madison, WI 53706, USA Received: 24 May 2006 – Accepted: 17 July 2006 – Published: 25 July 2006 Correspondence...

Magmatism during the maturation phase of Archean greenstone belts produced voluminous tonalite–trondhjemite–granodiorite (TTG) suites, as well a lesser amount tonalite–trondhjemite–diorite (TTD) suites. Such TTD suites have recently been recognized in Abitibi belt, on southern flank Superior Craton, Canada, but their source(s), differentiation processes, and depths emplacement remain poorly con...

VMS deposits in the Iberian Pyrite Belt (IPB), Spain and Portugal, constitute largest accumulation of these on Earth. Although several factors account for their genetic interpretation, a link between volcanism mineralization is generally accepted. In many districts, research focused geochemical discrimination barren fertile volcanic rocks, latter being proxy mineralization. Additionally, volcan...

In this paper, we present a physics motivated modeling method for volcanic clouds as a two fluids model. Some previous methods model smoke or clouds as one fluid, but the volcanic clouds can not be treated as one fluid. The volcanic clouds consist of the pyroclasts, the volcanic gas and the entrained air. Since the pyroclasts and the volcanic gas can be treated as one fluid, called magma, the v...

Introduction Conclusions References

Geologic investigations of the Arabian-Nubian Shield (ANS) are supported by a valuable, expanding dataset of geochronologic ages and isotopic analyses. U-Pb zircon SIMS, TIMS, and evaporation data provide robust temporal control on depositional, volcanic, and intrusive events. Nd, Sr, O and, increasingly, Hf isotopic studies provide insights into magma sources and constraints on crustal recycli...