< Back to Announcement List

Four Session Announcements for the 2013 AGU Fall Meeting

Date: 07/09/2013

Presenting four new Session announcements for the 2013 AGU Fall Meeting, shared with the SCEC community by Olaf Zielke (ASU), John Platt (USC), Rowena Lohman (Cornell), and Margaret Boettcher (UNH).

For general information on this year's AGU Fall Meeting, see: http://fallmeeting.agu.org/2013/

The deadline for submitting abstracts is August 6, 2013.

----------------------- Session T013 ----------------------

Dear SCEC community,

As the AGU fall meeting and abstract deadlines are coming closer, we would like to draw your attention to the following session, encouraging your contribution.

Session T13: "Earthquake recurrence revisited -New insights from paleoseismic and geomorphic investigations"

Paleoseismic and geomorphic studies have contributed significantly over the last several decades to our conceptual understanding of earthquake (EQ) recurrence. Much of the prior work was based on air photo and field investigations. Over the last 10 years, high-resolution technology for (sub-) surface imaging (e.g., LiDAR and GPR) became increasingly more available. In combination with the aforementioned classical approaches, this data may enable the next step towards a more complete conceptual understanding of EQ recurrence. We invite contributions that analyze paleoseismic or geomorphic records, using new as well as classical approaches and data sets to constrain (general) EQ recurrence behavior as well as single-event slip characteristics. While focussed on observational data, we also welcome numerical studies addressing these topics.

Convenver: Olaf Zielke
Invited presentations: Yann Klinger (IPGP), Ray Weldon? (Oregon)

----------------------- Session T015 ----------------------

Dear friends of fault zones and shear zones,

We are convening the following session at the 2013 AGU Fall Meeting:

*T015 Fault Zone Structure from the Surface to the LAB: Constraints from Seismology, Geodesy, Field Observations, and Rock Mechanics*

The deep structure of plate-boundary fault zones is increasingly accessible to investigation using a range of tools including seismology shear-wave splitting, receiver functions), geodesy (post-seismic transients, visco-elastic relaxation), field and microstructural studies including EBSD to analyze paleostress and rheology, and experimental data on the rheology of ductile fault rocks, as well as the mechanical properties of fault gouge retrieved from boreholes. This session brings together workers in these diverse fields to discuss the constraints on fault zone width, structure, and mechanical properties from the surface to the base of the lithosphere.

Please consider submitting an abstract on any aspect of fault zone structure at any depth, based on the full range of observational data (deadline for abstracts is August 6).



John Platt (University of Southern California)
Whitney Behr (University of Texas at Austin)

Invited Speakers:

Christie Rowe (McGill University, Canada)
Yuri Fialko (UCSD)
Andrea Tommasi (University of Montpellier II, France)
Martha Savage (Victoria University of Wellington, NZ)

Looking forward to seeing you in San Francisco!
John Platt & Whitney Behr

----------------------- Session G016 ----------------------

Dear Colleagues,

We would like to encourage you to submit abstracts to the following session:

G016. Pushing the frontiers of geodesy: Detection of new phenomena through advances in geodetic time series analysis and corrections

Appropriate numerical methods and understanding of environmental effects allow researchers to study signals of smaller magnitudes than ever before. Use of geodetic data is complicated by the fact that many processes are convolved with other signals due to hydrologic loads, anthropogenic effects or atmospheric and ionospheric structure. We welcome contributions on studies of phenomena that have recently become observable through the development of the appropriate time series analysis tools and correction protocols, such as hydrological effects on GPS and gravity data or atmospheric influences on GNSS or InSAR time series.

Conveners: Van Camp, Michel, Royal Observatory of Belgium; de Viron, Olivier, Institut de Physique du Globe; Lohman, Rowena, Cornell University; Tregoning, Paul, Australian National University

----------------------- Session S013 ----------------------

Dear colleagues,

We would like to encourage your contribution to a cross listed Seismology and Tectonophysics AGU Special Session on oceanic ridge-transforms and intraplate fracture zones. We are casting a wide net for perspectives from the seismic, structure and geochemistry fields to create a lively and comprehensive session on these vast and relatively under-instrumented tectonic settings. For more details, please see the attached description and further questions can be directed to the conveners listed below.

The deadline for abstract submission is August 6th, and we look forward to seeing you in December.

Best regards,

Monica Wolfson-Schwehr (mwolfson@ccom.unh.edu)
Kasey Aderhold (kasey@bu.edu)
Margaret Boettcher (margaret.boettcher@unh.edu)
Rachel Abercrombie (rea@bu.edu)

S013. Fault structure and seismic behavior in ridge-transform fault and oceanic intraplate environments

Recent studies of transform fault and intraplate settings in oceanic lithosphere have yielded new insights into fault and earthquake behavior. Results suggest that some oceanic transform faults have remarkably regular seismic cycles, complex distributions of seismic/aseismic slip, and earthquake triggering behavior that differs from continental faults. Studies of oceanic intraplate earthquakes indicate complex rupture, though they remain relatively enigmatic. This session seeks to integrate seismic, structural, and geochemical investigations of faulting in ridge-transform and oceanic intraplate settings, with contributions from observational, theoretical, modeling, and laboratory studies.