iiinova — where your digital self keeps evolving

Mathieu Lapôtre @marslogander.bsky.social · 16/06/2026

Congratulations to newly minted Dr. @mcolinmarvin.bsky.social and Dr. Michael Hasson! I feel so lucky to have had you both as my first PhD students. Can’t wait to witness your next discoveries! #geomorphology #sedimentology #graduates #PhD @stanforddoerr.bsky.social

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Mathieu Lapôtre @marslogander.bsky.social · 18/12/2025

Finally, PhD student Claire Blaske used #pattern statistics in #subaqueous dunes formed by a #glacial #flood in the Channeled Scablands of WA and #megafloods on #Mars to estimate flood durations. A powerful new tool to understand #Hesperian / #Amazonian #hydrology on Mars (12/17 pm, EP34A-02)

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Mathieu Lapôtre @marslogander.bsky.social · 18/12/2025

Former postdoc @calvarez03.bsky.social discussed low-pressure wind-tunnel experiments at #NASA Ames showing that Mars’ large #ripples are aeolian drag ripples. Big implications for #paleoenvironments and sand #flux estimates on Mars (12/17 pm, EP33A-08). Published in @natcomms.nature.com this year

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Mathieu Lapôtre @marslogander.bsky.social · 18/12/2025

@mcolinmarvin.bsky.social next explored if—and why—aeolian #dune fields, like rivers, reach a near-transport threshold state. This work has neat implications for reconstructions of wind conditions on the early #Earth and on other #planetary surfaces (12/17 am, EP31D-1678)

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Mathieu Lapôtre @marslogander.bsky.social · 18/12/2025

Next was PhD student Michael Hasson, giving an invited talk about how #vegetation has changed the way #rivers move through space, with implications for interpretations of river deposits through the first 90% of #Earth history (12/16 pm, EP24C-04). Published in @science.org this year.

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Mathieu Lapôtre @marslogander.bsky.social · 18/12/2025

Busy week for @stanforddoerr.bsky.social EPSP at #AGU25! Started with PhD student Vittorio Colicci looking for clues about #Archean environments through the deposits of some of Earth’s oldest #coastal #dune fields in South Africa (12/16 am, EP21E-1659)

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Mathieu Lapôtre @marslogander.bsky.social · 16/10/2025

Just out: PhD candidate @mcolinmarvin.bsky.social shows that like in quartz, #zircon grains preserve microscopic archives of their transport history. But unlike in quartz, those archives remain decipherable for billions of years, unlocking first 90% of #Earth ’s history @stanforddoerr.bsky.social

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Mathieu Lapôtre @marslogander.bsky.social · 10/12/2024

Final stop with postdoc Carlos Alvarez on the "Aerodynamic #roughness of rippled beds under active #saltation at low atmospheric #pressure" (EP54A-03, 146 B). Fr 4:20-4:30 pm. #Wind tunnel work reveals impact of #bedforms and #saltation on #Mars. #AGU24 (10/10)

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Mathieu Lapôtre @marslogander.bsky.social · 10/12/2024

Back to #Mars with PhD student Claire Blaske asking "Were #boulder fields along Mars' putative #ocean paleoshoreline deposited by a #tsunami?" (EP51B-06, 146 B). Fr 9:25-9:35 am. Or perhaps #floods? #glaciers? #impacts? #AGU24 (9/10)

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Mathieu Lapôtre @marslogander.bsky.social · 10/12/2024

Collaborator @alvitello.bsky.social from U. Padua next will show that " #Vegetation leaves measurable imprints on the #morphodynamics or #meandering #rivers" (EP51F-1434). Fr 8:30 am-12:20 pm. All about how #plants affect #meander shape! #AGU24 (8/10)

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Mathieu Lapôtre @marslogander.bsky.social · 10/12/2024

PhD student Timmy Lui will take us to #Mars for his " #Segmentation of #dune crestlines using #convolutional #neural #networks" (EP51D-1378, hall B-C). Fr 8:30 am-12:20 pm. A challenging task with potential to reveal much about #Mars #climate! #AGU24 (7/10)

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Mathieu Lapôtre @marslogander.bsky.social · 10/12/2024

Kicking off Fr, PhD student Vittorio Colicci will present his MS work at MIT, "Examining the influence of early #tree #root geometry on #soil cohesion and anchoring strength using 3D-printed reconstructions" (EP51F-1439, hall B-C) Fr 8:30 am-12:20 pm #AGU24 (6/10)

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Mathieu Lapôtre @marslogander.bsky.social · 10/12/2024

Alternatively, undergrad Brian Amaro will talk about his "Automatic characterization of the size distribution of small #rocks on the #Moon and implications for orbiter-based extrapolations" (P44C-06, Liberty M at Marriott). Th 4:52-5:02 pm. #AGU24 (5/10)

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Mathieu Lapôtre @marslogander.bsky.social · 10/12/2024

Then former postdoc @agunn.bsky.social (now faculty at Monash) and recipient of #AGU24 's Luna Leopold award will deliver the Sharp lecture (Ballroom B). #Dunes galore on the horizon! Th 4-5:30 pm. (4/10)

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Mathieu Lapôtre @marslogander.bsky.social · 10/12/2024

Next: #Precambrian #Earth with PhD student @mcolinmarvin.bsky.social, with "Zircon microtextures: A record of Earth's earliest surface environments" (EP43F-03, 146 C). Th 2:30-2:40 pm. Tiny scratches pack much info on first ~90% of Earth's history! #AGU24 (3/10)

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Mathieu Lapôtre @marslogander.bsky.social · 10/12/2024

First stop: #Earth with PhD student Michael Hasson for " #Vegetation alters the migration trajectory of #meander bends" (EP41E-1245, hall B-C). Th 8:30 am-12:20 pm. Cool implications for river evolution in the #Paleozoic! #AGU24 (2/10)

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Mathieu Lapôtre @marslogander.bsky.social · 17/08/2022

Congratulations to @mhasson7 for a brilliant qualifying exam!!! First PhD candidate from @StanfordEarth EPSP 🎉🥳 Time to celebrate with @Liorruba, @nilscp, @mcolinmarvin, and @b_amaro_!

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Mathieu Lapôtre @marslogander.bsky.social · 13/12/2021

Having LOTS of technical difficulties at #AGU21 this morning but that won’t stop us! Pic of @radjanirad being creative here to allow those on Zoom to see her slides 😅

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Mathieu Lapôtre @marslogander.bsky.social · 09/07/2021

Wrapping up a week of #Mars analog fieldwork in 🇮🇸 with the incredible SAND-E team @TAMU @PurdueEAPS @StanfordEarth @MissionCtrlSS @NASA w/ Ryan Ewing, Liz Rampe, @ironywithab @MasonKashauna @MarionNach @mikethorpe_geo @bedford_candice @mhasson7 @rudolpa and many others!

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Mathieu Lapôtre @marslogander.bsky.social · 20/06/2021

Back from a fun and productive week in the field with @mhasson7 and @_algunn!

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Mathieu Lapôtre @marslogander.bsky.social · 01/03/2021

These phone algorithms are really becoming quite good...

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Mathieu Lapôtre @marslogander.bsky.social · 20/02/2020

Please consider joining us in Montréal this year and submit your #GSA2020 abstracts to our session - T119. Sedimentary landscapes across the Solar System: Planets, Moons, and Terrestrial Analogues @PlanetaryGSA @GSA_SGD @GSAQGG

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Mathieu Lapôtre @marslogander.bsky.social · 11/01/2020

I’m a gay planetary geologist and assistant professor at Stanford doing #LGBTQScience to understand the mechanics of geological processes that shape planetary surfaces, and what they can tell us about hydrology, climate, and habitability!

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