DTM talk

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C.B. talked about the mantle transition zone and the Pacific plate at DTM. Fun and busy day meeting with staff and postdocs

IMG_6578

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)

Hello Copenhagen

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C. B. visited the Niels Bohr Institute in Copenhagen, Denmark, and gave a brief overview of our group’s latest results

More pictures here

View of Nyhavn in Copenhagen
View of Nyhavn in Copenhagen

AGU 2013

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Our team at AGU 2013
Our team at AGU 2013

I am very proud of my students who presented their research at the AGU meeting in San Francisco this week. Kaiqing even successfully gave his first AGU oral presentation!

And we some fun as well!

Student news

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Congratulations to graduate student Zheng Xing who successfully passed his first exam! He earns a masters degree and can stay in the PhD program!

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