Poulami Roy
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poulamiroy.bsky.social
Poulami Roy
@poulamiroy.bsky.social
Trying to understand how mantle flows 🔥
#geodynamics #seismicanisotropy #DeepEarth #ArcheanEarth

PDRA DurhamUniEarthScience @durhamearthsci.bsky.social
Alma mater GFZPotsdam @gfz.bsky.social

https://www.durham.ac.uk/staff/poulami-roy/
Pinned
Happy to share that our recent paper on global-scale geodynamic + seismic anisotropy simulation is on Eos spotlight. With @bstein.bsky.social , Manuele Faccenda , @michapons.bsky.social
Enjoy reading! :)
eos.org/research-spo...
Seismic Anisotropy Reveals Deep-Mantle Dynamics - Eos
A new study offers insight into the viscous BLOBs at the base of Earth’s mantle.
eos.org
Join our #EGU26 session on "Cratons through time: Geodynamics, Geochemistry and the Evolution of a Habitable Planet"

Multidisciplinary abstracts welcome- geodynamics, geochemistry, geology, geophysics & biogeodynamics.

Submit your abstract
meetingorganizer.copernicus.org/EGU26/sessio...
Session GD3.2
meetingorganizer.copernicus.org
October 25, 2025 at 2:50 PM
Bored by the Lower Mantle? Think again!
In my new @egu-gd.bsky.social blog, I talk about how we model deep mantle dynamics and use seismic anisotropy as a diagnostic tool to compare models with real observations, revealing a lot more going on down there than we think.
blogs.egu.eu/divisions/gd...
blogs.egu.eu
October 23, 2025 at 1:56 PM
Reposted by Poulami Roy
New blog alert! This week Poulami Roy attempts to change our minds about the lower mantle - what if it is not *that* boring after all?

blogs.egu.eu/divisions/gd...

#egu #egugeodynamics
Bored by the Lower Mantle? Think Again!
Is the lower mantle boring? For a long time, the lower mantle was thought to be relatively featureless and uniform compared to the more dynamic upper mantle. But recent seismic observations are challe...
blogs.egu.eu
October 22, 2025 at 3:32 PM
Happy to share that our recent paper on global-scale geodynamic + seismic anisotropy simulation is on Eos spotlight. With @bstein.bsky.social , Manuele Faccenda , @michapons.bsky.social
Enjoy reading! :)
eos.org/research-spo...
Seismic Anisotropy Reveals Deep-Mantle Dynamics - Eos
A new study offers insight into the viscous BLOBs at the base of Earth’s mantle.
eos.org
October 21, 2025 at 2:38 PM
Reposted by Poulami Roy
How do BLOBs in Earth’s mantle affect seismic waves?

Research by @poulamiroy.bsky.social & @bstein.bsky.social of @gfz.bsky.social and colleagues offers new insights. eos.org/research-spo...
Seismic Anisotropy Reveals Deep-Mantle Dynamics - Eos
A new study offers insight into the viscous BLOBs at the base of Earth’s mantle.
eos.org
October 21, 2025 at 2:10 PM
Reposted by Poulami Roy
3rd paper from @poulamiroy.bsky.social's Ph.D. just out at doi.org/10.1029/2025.... Combined global models of mantle flow and anisotropy constrain deformation mechanisms and viscosity, density and hence compositional structure of lowermost mantle. With Manuele Faccenda, @michapons.bsky.social & me.
October 7, 2025 at 4:22 AM
What’s happening 3000 km beneath our feet? Can mantle plumes rise all the way from that depth to the surface? How do we trace mantle flow down there? Can seismic anisotropy let us ‘see’ it? We explore this in our latest paper agupubs.onlinelibrary.wiley.com/doi/10.1029/... (co-authors in comment)
September 29, 2025 at 1:46 PM
Reposted by Poulami Roy
Scientific recycling: In doi.org/10.1029/2024... I use results from Poulami Roy's Ph.D. thesis to address why plume excess temperatures are much less than temperature drop across the lowermost-mantle thermal boundary layer. Further co-authors @michapons.bsky.social and Matteo Jopke. (continued)
April 7, 2025 at 9:34 AM
Reposted by Poulami Roy
Wondering what is the anisotropic signature of slab-induced plumes from thermochemical piles in the lowermost mantle? Then find out from Poulami Roy's paper agupubs.onlinelibrary.wiley.com/doi/10.1029/... co-authored by Manuele Faccenda, @michapons.bsky.social and myself
May 27, 2025 at 7:09 PM