EGU 2013 Particulate density currents in siliciclastic, pyroclastic and calciclastic settings: Experiments, deposits and modeling
From: Guilhem Amin Douillet <g.douillet@xxxxxxxxxxxxxxxxxxx>
****************************************************************************************
Dear colleagues,
We invite you to submit an abstract to
“Particulate density currents in siliciclastic, pyroclastic and calciclastic settings: Experiments, deposits and modeling” (co-sponsored by IAS).
EGU General Assembly, Vienna, Austria, 07-12 April 2013, Session SSP3.2/GMPV46
Key note speakers:
Dr. Peter Talling, National Oceanography Centre, Southampton
Dr. Roberto Sulpizio, Università degli Studi di Bari, Bari
Session abstract:
Particulate density currents are sediment-laden geophysical flows that move down slope because of the density contrast with the ambient fluid. For turbidity currents, the fluid phase is water and the sediment is derived from continental shelfs, platforms or slopes, and can be fed from rivers, long-shore currents or contour currents that discharge sediment into a water body. For pyroclastic density currents, the fluid is made of hot gas from degasing particles and entrained ambient air, and the sediment consists of all types of pyroclasts emitted during explosive volcanic eruptions.
All these types of particulate density currents move as a wall-bounded shear flows under the effect of gravity, by eroding, transporting and depositing particles during motion. Such currents can generate complex depositional architectures depending on the flow structure and regime. In particular, the type of sediment (i.e. shape, size and density of particles), and type of fluid phase (water, gas, with influence of salinity or temperature) supplied to a density current dictate the transport and depositional processes in regards to the topography.
This session is aimed at investigating the similarities and differences between all types of turbiditic and pyroclastic systems. In particular, to better understand the interaction between the fluid phase and particles (depending on particle shape, density contrasts, viscosity of fluid) and their role on depositional architecture and flow processes. We invite contributions from modern and ancient environments as well as, experimental and numerical simulations examining the generation, transport, flow and sedimentation processes within particulate density currents. This session has the intention to bring together field data and modeling contributions, in order to explore the fascinating dynamics of these flows, and the link to their deposits.
Conveners: Matthieu J.B. Cartigny (Utrecht University, NL); Domenico M. Doronzo (State University of New York at Buffalo, USA), Guilhem A. Douillet (Ludwig Maximilians Universitat Munchen, DE), Chirstopher J. Stevenson (National Oceanography Centre, UK)
Abstract deadline 9th January 2013: https://administrator.copernicus.org/authentication.php
The Session: http://meetingorganizer.copernicus.org/EGU2013/session/12454
Deadlines and Milestones: http://www.egu2013.eu/deadlines_and_milestones.html
All the best,
Matthieu, Domenico, Guilhem & Chris
==============================================================
Volcano Listserv is a collaborative venture among Arizona State University (ASU), Portland State University (PSU), the Global Volcanism Program (GVP) of the Smithsonian Institution's National Museum of Natural History, and the International Association for Volcanology and Chemistry of the Earth's Interior (IAVCEI).
ASU - http://www.asu.edu/ PSU - http://pdx.edu/ GVP - http://www.volcano.si.edu/ IAVCEI - http://www.iavcei.org/
To unsubscribe from the volcano list, send the message: signoff volcano to: listserv@xxxxxxx, or write to: volcano-request@xxxxxxx.
To contribute to the volcano list, send your message to: volcano@xxxxxxx. Please do not send attachments.
==============================================================
