a Observatoire Midi-Pyrénées, Laboratoire Dynamique Terrestre et Planétaire, UMR 5562, Université Paul Sabatier, Toulouse, France b Laboratoire de Planétologie et Géodynamique, Nantes University, UMR CNRS 6612, Nantes, France c School of Earth and Space Exploration, Arizona State University, Box 871404, Tempe, AZ, USA d Institut de Physique du Globe de Paris Equipe Géophysique Spatiale et Plané...

I To get us under way, consider a now familiar image: the manager who has his/her secretary print out his/her e-mails and stack them high for subsequent perusal. Not quite apocryphal enough, this practice – the source of many cartoons and much “back stage” grumbling – expresses a not-so-subtle judgement about information technology. We suppose that it breaks roughly into two distinct elements. ...

The objectives of this project for FY98 have been to 1) participate in the analysis and interpretation of the bottom boundary layer field studies; 2) test and apply a 2-dimensional, time-dependent model of shelf sediment transport to investigate the importance of advection and flux divergence to event bed formation and the emplacement of flood deposits; and 3) incorporate flocculation effects i...

The emplacement of Large Igneous Provinces (LIPs) throughout the Phanerozoic Eon introduced vast quantities mafic rocks to Earth's surface, which were subsequently weathered into oceans. Osmium isotope data can be used track these LIP-related weathering fluxes, providing a global fingerprint timing and magnitude LIP emplacement, guiding assessments impact events on ocean biogeochemistry regulat...

(40)Ar/(39)Ar dates of emplacement-related metamorphic rocks beneath the Samail ophiolite in Oman show that cooling to <525 degrees C occurred within approximately 1 million years of igneous crystallization of the ophiolite. This unexpectedly short time span and rapid cooling means that old, cold continental or oceanic lithosphere must have been adjacent to the ophiolite during spreading and th...