HiRISE 3D: Layered Bedrock and Bedforms in Flaugergues Crater
Interesting truncating strata are exposed here in and in adjacent HiRISE images, possibly the preserved stratigraphy of aeolian (wind formed) dunes.
uahirise.org/anaglyph/ESP_08…
NASA/JPL-Caltech/University of Arizona
ALT 3D image shows a very stratified high-standing exposure of bedrock on the surface of Mars.
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HiRISE 3D: Layered Bedrock and Bedforms in Flaugergues Crater
This incredible 3D image shows possibly preserved stratigraphy of wind-blown dunes. Separately, large ripple-like bedforms are also present nearby superposing bedrock ridges.
uahirise.org/anaglyph/ESP_09…
#Mars #NASA
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HiRISE 3D: A Sinuous Ridge and Surrounding Material Southwest of Capen Crater
This could be an inverted stream channel, and various intersecting “dikes,” layers or terraces, and bedforms similar to those in Meridiani Planum.
uahirise.org/anaglyph/ESP_02…
#Mars #NASA #science
ALT 3D imagfe show a long and way inverted channel on the surface of Mars, standing out against flatter terrain. The scene is less than 5 km, or 3 miles, across.
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HiRISE 3D: Gullies Filled with Dunes
Lots of gully-like features on the south crater rim that are filled with small ripples or dunes. Older gullies now superimposed with bedforms?
uahirise.org/anaglyph/ESP_03…
NASA/JPL-Caltech/University of Arizona
#Mars #NASA #science
ALT 3D anaglyph image showing rugged terrain with deep vertical ridges and valleys, creating a textured landscape effect.
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You could show them how a water current (waves, a river, a turbidite) can arrange disordered sediments in ordered bedforms too, so they cannot argue an "intelligence" did it.
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10 Jun 2025
Bedforms and Bedrock
A close-up of deposits shows a mound of bedrock with beautiful color contrasts. The variation in color represents diverse minerals in the rock.
uahirise.org/hipod/ESP_05540…
NASA/JPL-Caltech/University of Arizona
#Mars #science #NASA
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12 May 2025
The Ebro Delta is a great “showroom” of bedforms!!! Some examples from our last fieldtrip…
#Geologia #Geology @geologiaub @DeptDto ⚒️🌊
#DeltadelEbro #DeltadelEbre #ripples #dunes
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22 Apr 2025
Witness the dynamic dance of sediments in the Sado Estuary! 🌊✨ Captured during my neoichnology fieldwork in Portugal, these mesmerizing bedforms tell tales of currents that have shaped the seafloor.
#GeologyLovers #FieldworkFinds #Sedimentology #EarthScience #Portugal
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28 Mar 2025
Check out our latest publication in #NatureCommunications on the mystery of meter-scale martian ripples. Our results suggest an aerodynamic origin for these bedforms, with profound implications for how we interpret the martian surface and its atmospheric history.
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Enigmatic Canyon Dunes
This image shows a cross-section of ancient canyon systems in east Coprates Chasma, and displays several orders and generations of wind-driven dunes and ripples, also called bedforms.
uahirise.org/hipod/ESP_05273…
NASA/JPL-Caltech/University of Arizona
#Mars
ALT Image cutout shows a dark dune field adjacent to an old, eroded impact crater on Mars. (NASA/JPL-Caltech/University of Arizona)
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5 Feb 2025
“The shape and pattern of these aeolian bedforms—geologic features shaped by wind—can tell us so much about the environment,” said Lauren Berger. By Laurence Tognetti (@ET_Exists)! buff.ly/42N3UTV
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A team of researchers led by Planetary Science Institute Senior Scientist Matthew Chojnacki mapped and characterized paleo-bedforms across the red planet to better understand their diversity and Mars's ancient climate. #Mars @physorg_com
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6 Oct 2024
🛰️🌊🇦🇺 Automatic #Mapping and Characterisation of Linear #Depositional #Bedforms: Theory and Application Using #Bathymetry from the North West #Shelf of #Australia
✍️ Ulysse Lebrec et al.
📎 brnw.ch/21wNvio
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25 Sep 2024
Global survey of paleo-bedforms on Mars: sciencedirect.com/science/ar… -> Rock fossils hint at the red planet’s ancient climate: psi.edu/blog/frozen-in-time-…
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8 Sep 2024
Great insights on non-wave hummocky bedforms from gravity flows on steep slopes. Textbooks might need updates on HCS implications!
It reminds me of similar observations in E Taiwan.🤭
Source: Keavney et al. (2024) Sedimentology doi.org/10.1111/sed.13227
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22 Jun 2024
I think I was too distracted by all the mantle xenoliths when I visited that I missed those amazing bedforms…thanks for the pics
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6 Jun 2024
We are happy to announce a 2-day flume workshop at Utrecht University with Joris Eggenhuisen! This workshop is targeted at anyone who works with sediments and is interested in studying sediment transport, bedforms and sedimentary processes in action in the lab.
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15 May 2024
HiPOD: A Rippled Patch on the Plains
Here on the plains to the west of Juventae Chasma, we see a patch of inverted, or perhaps fluvial, channel forms with superposed or decaying-in-place bedforms that have been acted upon by the wind.
uahirise.org/hipod/ESP_07518…
NASA/JPL/UArizona
ALT Image shows a large patch of rippled terrain that is distinct from the flatter surrounding terrain where there are also many impact craters of differing sizes. (Credit: NASA/JPL-Caltech/UArizona)
ALT Enhanced color cutout shows a closeup of the rippled terrain. (Credit: NASA/JPL-Caltech/UArizona)
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10 May 2024
Light over mechanics: Microbial community structure and activity in simulated migrating bedforms are controlled by oscillating light rather than by mechanical forces
-in @FEMSmicro Microbiol Ecol
academic.oup.com/femsec/adva…
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