[unav_all] Subduction sessions at AGU 2010 Fall Meeting

Tue Jul 27 15:13:11 MDT 2010

Dear colleagues-

I want to draw your attention to a group of five subduction 
megathrust-related sessions at Fall AGU that might be of interest. Please 
consider submitting an abstract to one of these, if this is in your field 
of interest. See below for a message from Aron Meltzner summarizing the 
five sessions that are being offered this year. 

thanks,

Laura Wallace

Begin forwarded message:

From: Aron Meltzner <meltzner at gps.caltech.edu>
Date: 26 July 2010 11:22:22 AM PDT
To: Aron Meltzner <meltzner at gps.caltech.edu>
Cc: Aron Jeffrey Meltzner <meltzner at ntu.edu.sg>
Subject: Megathrust Sessions at AGU 2010 Fall Meeting

Dear Colleagues,

With the AGU Fall Meeting's abstract deadline just over five weeks away, 
we'd like to encourage you to start thinking about potential 
presentations.

There are five related sessions on subduction zone megathrusts that we 
think will interest many people on this list.  The session descriptions 
are below.  We welcome you to submit an abstract to one of these sessions. 
 The scheduling of these sessions will be coordinated to avoid time 
conflicts and to facilitate cross-session communication.

Please pass this along to any potentially interested colleagues and 
students, and let us know if you have any questions.  We apologize if you 
receive multiple copies of this announcement due to cross-posting on 
multiple lists.

Sincerely,
Aron Meltzner

for
Sergio Barrientos, Benjamin Brooks, Kelin Wang, Daniel Melnick,
Laura Wallace, Rebecca Bell, Susan Schwartz, Hiroshi Sato,
Saneatsu Saito, Lisa McNeill, Demian Saffer, Michael Underwood,
Chris Goldfinger, Aron Meltzner, Ian Shennan, and Robert Witter,
  Session Conveners

==========

U04:  The M 8.8 Chilean Earthquake of 27 February 2010 (Webcast. INVITED 
only. See G04)

http://www.agu.org/meetings/fm10/program/scientific_session_search.php?show=detail&sessid=731

Description:  This event will lead to many new geodynamical insights 
because of its size, the unprecedented quantity of pre-, co-, and 
post-seismic observations available to study it, and its proximity to the 
rupture zone of the M 9.5 1960 earthquake. Geophysicists and geodesists 
rapidly deployed a range of instrumentation to compliment existing arrays. 
Geologists, tsunami researchers, and engineers also fanned out to observe 
the impact of this event. We encourage contributions that address 
geologic, seismic, geodetic, and tsunami observations to constrain models 
of all phases of the seismic cycle in the impacted region as well as the 
relationship, if any, between seismogenic behavior and the long-term 
evolution of the forearc, arc, and backarc regions. This session comprises 
invited papers only. Please submit contributed papers to the companion 
session, G04.

==========

G04:  The Magnitude 8.8 Chilean Earthquake of 27 February 2010

http://www.agu.org/meetings/fm10/program/scientific_session_search.php?show=detail&sessid=252

Description:  This event will lead to many new geodynamical insights 
because of its size, the unprecedented quantityof pre-, co-, and 
post-seismic observations available to study it, and its proximity to the 
rupture zone of the M 9.5 1960 earthquake. Geophysicists and geodesists 
rapidly deployed a range of instrumentation to compliment existing arrays. 
Geologists, tsunami researchers, and engineers also fanned out to observe 
the impact of this event. We encourage contributions that address 
geologic, seismic, geodetic, and tsunami observations to constrain models 
of all phases of the seismic cycle in the impacted region as well as the 
relationship, if any, between seismogenic behavior and the long-term 
evolution of the forearc, arc, and backarc regions.This session is 
accompanied by an overview Union Session U04.

==========

T08:  What Controls Strong vs. Weak Coupling on Subduction Interface 
Faults?

http://www.agu.org/meetings/fm10/program/scientific_session_search.php?show=detail&sessid=688

Description:  Some subduction margins have strong interseismic coupling 
and produce Great subduction earthquakes, while others are weakly coupled. 
This session seeks to explore:1)What observations characterize strongly 
vs. weakly coupled margins? 2)What physical models can explain differences 
in coupling at subduction margins globally? 3)What does "interseismic 
coupling" mean physically, and how does slip occur at "partially" coupled 
margins? We invite submissions comparing subduction margin geometry, 
seismicity/slow slip/tremor and physical properties at strong and weak 
margins. Contributions from margins that show along-strike transitions 
from weak to strong coupling (e.g. SW Japan, New Zealand, Alaska) are 
strongly encouraged.

==========

T26:  From Sediment Inputs to Seismogenesis at Subduction Zones

http://www.agu.org/meetings/fm10/program/scientific_session_search.php?show=detail&sessid=706

Description:  Recent research projects on subduction zones have been 
capturing the entire picture of subduction processes from the inputs of 
sediment and basalt to seismogenesis. The objective of this session is to 
foster discussions among disciplines and among researchers working on 
various subduction zones, both modern and ancient. We welcome 
presentations showing recent results of ocean drilling, geophysical 
investigations, laboratory studies, and analytical or numerical modeling.

==========

T29:  Subduction-Zone Segmentation over Multiple Earthquake Cycles

http://www.agu.org/meetings/fm10/program/scientific_session_search.php?show=detail&sessid=709

Description:  Understanding controls on rupture limits and the persistence 
or lack of segmentation along subduction zones has been limited due to the 
paucity of long records over multiple earthquake cycles. In the few 
well-documented cases, some barriers in one sequence are broken through in 
another. The identification of more persistent barriers and processes 
controlling them cannot be addressed without longer paleoseismic records 
coupled with a theoretical basis for plate boundary segmentation. We seek 
abstracts pertaining to paleoseismic, paleogeodetic, paleotsunami and 
historical studies as well as innovative methods, regional syntheses, and 
models that explore the occurrence and causes of megathrust segmentation.

==========
==========

You may now search and view all accepted sessions on the meeting website:
http://www.agu.org/meetings/fm10/program/scientific_session_search.php

You can submit your abstract at 
http://www.agu.org/meetings/fm10/program/abstract_submissions.php
The abstract submission deadline is 2 September.

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