[iris-bulk] AGU 2007 Joint Assembly Seismology Special Session S06
Thorne Lay
thorne at pmc.ucsc.edu
Fri Feb 23 14:21:13 PST 2007
AGU 2007 Joint Assembly Special Seismology Session
S06 Seismic Structure of the Core Mantle Boundary Beneath the Caribbean
and Central America
Seismic heterogeneities near the core-mantle boundary have been mapped
in several locations in the Earth’s interior. In particular recent
studies have focused on the D” region in the lowermost mantle, which has
led to detection of the D” discontinuity, seismic scatterers, ultra-low
velocity zone structures, as well as radial and azimuthal anisotropy.
These structures have been interpreted as related to subducted slab
material, plume roots, and more recently the post-perovskite phase
transition. Many different methods for imaging the structure of the
core-mantle boundary, such as differential travel time analysis,
waveform modeling, seismic tomography and shear wave splitting analysis,
have been attempted with success, especially beneath Caribbean and
Central America. Emerging techniques such as wavefield migration and
waveform tomography have shown great promise in resolving the finer
structure of the lowermost mantle. We invite contributions on imaging
the seismic structure near the core-mantle boundary beneath the
Caribbean and Central America. We aim to discuss methodologies, data,
and results of recent studies to gain an understanding of the overall
heterogeneous three-dimensional structure of the deep mantle in this
region.
The convener contact information follows:
Conveners:
Meghan S. Miller
meghan.s.miller at rice.edu
Fenglin Niu
niu at rice.edu
Thorne Lay
thorne at pmc.ucsc.edu
The deadline for submitting an abstract to the AGU is March 1st. The
2007 Joint Assembly will be held 22-25 May 2007
at the Acapulco Convention Center, Acapulco, Mexico. The registration
and housing deadline is
18 April, 2007. For more information please visit
http://www.agu.org/meetings/ja07/
The web address for abstract submission information is:
http://submissions5.agu.org/submission/entrance.asp
--
More information about the Bulkmail
mailing list