[iris-bulk] Easy at AGU: Special session DI02 on Seismic anisotropy and mantle dynamics

[IRIS]

Easy at AGU: Special session DI02 on Seismic anisotropy and mantle dynamics

Do you sometimes feel that there are too many emails in your Inbox? Too
many interesting special session announcements to read? Well, here's
your EASY button for this year's Fall AGU:

Dear friends and colleagues:

Please join us for what we hope will be a lively discussion of the
cutting edge of seismic anisotropy imaging, modeling, and
interpretation for mantle dynamics. We aim to bring together
seismologists, mineral physicists, geodynamicists, and EM researchers
to report and discuss what observations of anisotropy from the
lithosphere to the core mean for questions such as those about the
variability of global plate motions, the nature of continental boundary
layer dynamics, the origin and role of the asthenosphere, effective
mantle creep rheologies, micro-mechanical deformation mechanisms, and
deep Earth compositional heterogeneity.

We have a terrific cast of invited speakers

David Abt, Brown University
James Gaherty, Lamont, Columbia University
Hans-Rudolf Wenk, University of California at Berkeley
Sergei Lebedev, Dublin Institute for Advanced Studies

and are very much looking forward to receiving your contribution.

The detailed session description for DI02 is given below and at

http://www.agu.org/meetings/fm08/index.php/Program/SessionSearch/?show=detail&sessid=78


Cheers

Mark Panning
Thorsten Becker

(This year's AGU Fall meeting is from December 15-19, 2008, in San
Francisco. The abstract deadline is September 10, 2008. Please contact
either of us should you have any questions. Your results may vary.)


DI02: Seismic Anisotropy and Mantle Dynamics - Observations and Modeling

Seismically anisotropic structure from the uppermost mantle to the core
provides one of the best potential constraints for linking large-scale
observations to geodynamic flow modeling through microscopic mineral
physics experiments and theory. Recent years have seen detailed models
of azimuthal and radial anisotropy, for example, which have been
interpreted for plate and subduction dynamics. However, numerous issues
remain, some decades old, including: the detailed depth distribution of
anisotropic anomaly power throughout the upper mantle, the links with
electrical and rheological anisotropy, the origin and length-scale of
lowermost mantle anisotropy, the role of composition, volatiles,
temperature and pressure in anisotropic texture development, the
partitioning of frozen-in versus convection-generated anomalies, and the
resolving power of current seismological datasets. In this session, we
invite contributions from seismology, geodynamics, electro-magnetic and
xenolith studies, rock mechanics and mineral physics to explore the
frontiers of observations and modeling of mantle anisotropy. In
particular, studies that explicitly examine the connections between
observations of anisotropy and the dynamic processes in the mantle are
strongly encouraged. We wish to identify current challenges in
discussion (e.g. are we modeling or data limited?), and jointly
formulate strategies for the next years to turn seismic anisotropy into
a truly quantitative constraint on mantle dynamics.


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.iris.washington.edu/pipermail/bulkmail/attachments/20080902/4b94fe77/attachment-0001.htm>