Thread: AGU Session: Multi-scale Heterogeneity in Earth’s Deep Interior: Constraints from Imaging, Modeling, and Experiments

Started: 2017-07-03 06:33:10
Last activity: 2017-07-03 06:33:10
Topics: AGU Meetings
Dear Colleagues,

We would like to bring to your attention the following session at the next AGU 2017 Fall meeting in New Orleans. The deadline for abstract submission is Wednesday August 2nd.

DI012: Multi-scale Heterogeneity in Earth’s Deep Interior: Constraints from Imaging, Modeling, and Experiments
Recent progress in seismology, geodynamics, geochemistry, and mineral physics provides insight into heterogeneity across spatial scales. Imaging techniques now model the full spectrum of seismic data, ranging from broadband seismic waveforms and normal modes, to arrival times of body and surface waves. These advancements provide constraints on parameters like attenuation, anisotropy, and density, illuminating the thermochemical nature of convective features. Regional techniques reveal small-scale features including potential remnants of subducted slabs and ultra-low velocity zones. The emerging consensus on large-scale mantle heterogeneity has led to cross-disciplinary efforts towards developing reference Earth models and data sets. The detected heterogeneity implies variation in intrinsic properties like temperature, composition, grain size, or crystal structure. Disaggregating these effects through observations, experiments, and modeling is vital for explaining the geological origins of seismic heterogeneities and for understanding mantle mixing processes. We invite submissions that explore the nature of heterogeneities at local, regional, and global scales.
Best regards,

Pritwiraj Moulik, University of Maryland, College Park, MD, US.
Greg Finkelstein, University of Hawaii at Manoa, Honolulu, HI, US.
Neala Creasy, Yale University, New Haven, CT, US.
Lauren Waszek, New Mexico State University, Las Cruces, NM, US and
Australian National University, Acton, ACT, Australia.

Pritwiraj "Raj” Moulik
Postdoctoral Researcher
Reference Earth Model (REM3D) Project
Personal Website:
REM3D website:
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