Weidner et al. paper!

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Congratulations to graduate student Erik Weidner for submitting the first paper of his thesis for publication in Geophysical Journal International! Preprint available here: https://doi.org/10.31223/X5QW31

Fischer et al. paper in press!

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Excited for this new paper to be in press! Fischer, K.M., Rychert, C.A., Dalton, C.A., Miller, S.M., Beghein, C., and Schutt, D.L. (2020), A comparison of oceanic and continental mantle lithosphere, Physics of the Earth and Planetary Interiors, doi:10.1016/j.pepi.2020.106600

First InSight paper by Haotian Xu et al. submitted

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Graduate student Haotian Xu submitted his second first-authored paper (and first InSight first-authored paper) to JGR – Earth and Space! The manuscript is entitled “Measuring Fundamental and Higher Mode Surface Wave Dispersion on Mars From Seismic Waveforms”.

Paper by Fischer et al. submitted to PEPI

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C.B. co-authored a paper entitled “Comparison of Oceanic and Continental Mantle Lithosphere” that was submitted to the journal Physics of the Earth and Planetary Interiors.

First InSight Results Published!

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Exciting news! A series of papers have just been published in Nature Geoscience to present the first results of the InSight mission. Check them out here

Press release

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UCLA press release of our Science paper

This figure illustrates the Earth’s upper mantle beneath the Pacific ocean. The orange layer represents the deformable, warm asthenosphere in which there is active mantle flow. The green layer on top represents the lithospheric plate, which forms at the mid ocean ridge, then cools down and thickness as it moves away from the ridge. The cooling of the plate overprints a compositional boundary that forms at the ridge by dehydration melting and is preserved as the plate ages. The more easily deformable, hydrated rocks align with mantle flow. The directions of past and present-day mantle flow can be detected by seismic waves, and changes in the alignment of the rocks inside and at the bottom of the plate can be used to identify layering. CREDIT: Nicholas Schmerr (University of Maryland)
This figure illustrates the Earth’s upper mantle beneath the Pacific ocean. The orange layer represents the deformable, warm asthenosphere in which there is active mantle flow. The green layer on top represents the lithospheric plate, which forms at the mid ocean ridge, then cools down and thickness as it moves away from the ridge. The cooling of the plate overprints a compositional boundary that forms at the ridge by dehydration melting and is preserved as the plate ages. The more easily deformable, hydrated rocks align with mantle flow. The directions of past and present-day mantle flow can be detected by seismic waves, and changes in the alignment of the rocks inside and at the bottom of the plate can be used to identify layering. CREDIT: Nicholas Schmerr (University of Maryland)

Paper submitted

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Paper entitled “Three-dimensional variations in Love and Rayleigh wave azimuthal anisotropy for the upper 800 km of the mantle” by Yuan and Beghein on SH azimuthal anisotropy submitted to Journal of Geophysical Research – Solid Earth

Paper accepted

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Our paper “Seismic anisotropy changes across upper mantle phase transitions” was accepted for publication in Earth and Planetary Science Letters. Good job Kaiqing!

Paper Published

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Paper by Stubailo, Beghein, and Davis “Structure and anisotropy of the Mexico subduction zone based on Rayleigh-wave analysis and implications for the geometry of the Trans-Mexican Volcanic Belt” published in JGR:

*Stubailo, I., Beghein, C., Davis, P.,  Structure and anisotropy of the Mexico subduction zone based on Rayleigh-wave analysis and implications for the geometry of the Trans-Mexican Volcanic Belt, J. Geophys. Res., 117, B5, B05303, doi:10.1029/2011JB008631, 2012

Two potential interpretations of the subduction structure in Mexico. (top) The flat (slab A) and steep (slab B) portions of the slab discussed in this paper separated by a tear.
Two potential interpretations of the subduction structure in Mexico. (top) The flat (slab A) and steep (slab B) portions of the slab discussed in this paper separated by a tear.