Dr. Lonneke Roelofs
@lonnekeroelofs.bsky.social
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Studying mass flows on Mars & Earth at Utrecht University.
reposted by
Dr. Lonneke Roelofs
5 days ago
Call for Abstracts 📣 Our session "Planetary Geomorphology and Surface Processes" - GM6.1, at the EGU (3-8 May 2026 in Vienna) will provide a platform for cross-planetary discussion on geomorphological and geological processes. Abstract deadline is January 15!
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reposted by
Dr. Lonneke Roelofs
AGU (American Geophysical Union)
about 1 month ago
Some of the dune fields on
#Mars
form unique parallel channels called "linear dune gullies." New evidence suggests that these channels were formed by sliding and burrowing blocks of CO2 ice, rather than by liquid water as previously theorized. 🔗
buff.ly/Qpt5cqx
#AG
#AGUPubs
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#Planets
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#SpaceScience
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reposted by
Dr. Lonneke Roelofs
3 months ago
The
#Planetary
Geomorphology Image 📸 of the Month November is now online! Dr. Susana del C. Fernández takes us to the moon, in a search for for lithium and water ice! 🔋🧊🌕
planetarygeomorphology.wordpress.com/2025/11/01/l...
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Lunar Surface Geomorphology as a tool to find Lithium and Water Ice
Post contributed by Dr. S. del C. Fernández, Department of Geology, University of Oviedo, Spain – Coordinator of MapPlaneST The geomorphology of the lunar surface plays a key role in assessin…
https://planetarygeomorphology.wordpress.com/2025/11/01/lunar-surface-geomorphology-as-a-tool-to-find-lithium-and-water-ice/
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reposted by
Dr. Lonneke Roelofs
Faculty of Geosciences, Utrecht University
3 months ago
It's a phenomenon never seen before. Under normal conditions it doesn't even occur on Earth: the carving of gullies by CO2 ice blocks. Earth scientist
@lonnekeroelofs.bsky.social
proved that this may explain the formation of dune gullies on Mars
www.uu.nl/en/news/myst...
@astrobiologyou.bsky.social
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add a skeleton here at some point
3 months ago
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reposted by
Dr. Lonneke Roelofs
4 months ago
The IAG
#Planetary
Gemorphology Image of the Month 📸 October is online! Dr. Abdallah Zaki takes us on a field trip to ancient Mars, by studying hourglass-shaped landforms ⌛ - remnants of source-to-sink river systems💧🌕🧐👩🚀
#Mars
#rivers
#space
planetarygeomorphology.wordpress.com/2025/10/01/h...
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Hourglass landforms: Evidence of source-to-sink fluvial deposition
Post contributed by Dr. Abdallah S. Zaki, Jackson School of Geosciences, University of Texas at Austin Mars provides an exceptional geological archive, preserving billions of years of pre-existing …
https://planetarygeomorphology.wordpress.com/2025/10/01/hourglass-landforms-evidence-of-source-to-sink-fluvial-deposition/
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reposted by
Dr. Lonneke Roelofs
4 months ago
The IAG
#Planetary
Gemorphology Image of the Month 📸 for September is online! Dr. Anna Szynkiewicz shows evidence of late fluid flows in Gale crater, as she compares Martian sulfate-rich salt deposits with those on Earth! 🧂💧👩🚀
planetarygeomorphology.wordpress.com/2025/09/01/b...
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Bright-toned sulfate-rich salts on Mars:Evidence of late fluid flows in Gale crater
Post contributed by Dr. Anna Szynkiewicz, Department of Earth & Planetary Sciences, University of Tennessee, USA Various secondary sulfate minerals have been detected by the Curiosity rover in …
https://planetarygeomorphology.wordpress.com/2025/09/01/bright-toned-sulfate-rich-salts-on-marsevidence-of-late-fluid-flows-in-gale-crater/
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reposted by
Dr. Lonneke Roelofs
6 months ago
The IAG
#Planetary
Gemorphology Image of the Month 📸 for August is now online! A team of researchers discusses the colourful and bright dusty halos that occur on Martian sand dunes in early spring. The halos are a good indicator of mass-wasting driven by the seasonal sublimation of CO2 ice! 🌕😇✨
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Bright dusty halos around mass wasting on Martian Sand dunes
Post contributed by Maria Kefa (master student), Dr. Susan Conway – LPG Nantes & Dr. Lonneke Roelofs – Utrecht University Mars’ winters are sufficiently cold that carbon dioxide (CO…
https://planetarygeomorphology.wordpress.com/2025/08/01/bright-dusty-halos-around-mass-wasting-on-martian-sand-dunes/
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reposted by
Dr. Lonneke Roelofs
10 months ago
The IAG
#Planetary
Gemorphology Image of the Month 📸 for April is now available. Undergraduate student Kyleshaquill Fred Velez takes us to Enceladus, an icy moon of Saturn, where mass wasting occurs on the steep slopes along tectonic features.
planetarygeomorphology.wordpress.com/2025/04/01/p...
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Our new image of the month blog post is available on our website! This month a team of wonderful scientists shared their work on Martian clouds. The images are stunning! 😍
#Mars
#clouds
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12 months ago
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