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Tag Archives: sediments
HiRISE: Wonderful world of Arabia Terra
The wonderful world of Arabia Terra. It’s one of our favorite regions, not the least because of the incredible layered sedimentary rock but also for the composition of the bedrock. Arabia Terra might be one of the oldest regions on … Continue reading
Posted in Reports
Tagged Arabia Terra, bedrock, High Resolution Imaging Science Experiment, HiPOD, HiRISE, HiRISE Picture of the Day, layered deposits, Mars Reconnaissance Orbiter, MRO, NASA, sedimentary deposits, sediments, University of Arizona
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HiRISE: Sedimentary infill
Interaction. This crater and many of those surrounding it are filled with layered sedimentary material. There are various theories for the origin of this layered fill, and this image will help to constrain the relationship of the fill to the … Continue reading
Posted in Reports
Tagged Arabia Terra, High Resolution Imaging Science Experiment, HiPOD, HiRISE, HiRISE Picture of the Day, layered deposits, Margaritifer Terra, Mars Reconnaissance Orbiter, MRO, NASA, sedimentary deposits, sediments, University of Arizona
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THEMIS: Wind-etched sediments in Gordii Dorsum
THEMIS Image of the Day, July 10, 2019. The most common active process affecting the surface of Mars today is erosion by the wind. In areas of poorly cemented surface materials, the effect is more easily seen. This image near … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, Gordii Dorsum, linear ridges, Mars Odyssey, NASA, sediments, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System, wind erosion, yardangs
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Sedimentary volcanism in southern Chryse Planitia: varieties of mud volcanos
[Editor’s note: From a paper by Petr Broz and four co-authors recently published in the Journal of Geophysical Research.] Subsurface Sediment Mobilization in the Southern Chryse Planitia on Mars • Southern Chryse Planitia contains a large field of Amazonian‐aged extrusive … Continue reading
Posted in Reports
Tagged Chryse Planitia, mud, mud flows, mud volcanos, outflow sediments, sediments
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Valley network distribution supports true polar wander and an ancient ocean
[Editor’s note: From a paper by Ngai Ham Chan and three co-authors recently published in the Journal of Geophysical Research.] New Evidence of an Ancient Martian Ocean from the Global Distribution of Valley Networks • Surface deformation due to True … Continue reading
Posted in Reports
Tagged deltas, oceans, sediments, shorelines, TPW, true polar wander, valley networks
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Cross-bed geometry in upper Mt. Sharp
Planetary Geomorphology Image of the Month, August 1, 2018: One of the most environmentally diagnostic features of sedimentary rocks is cross-bedding, which occurs when sediment is transported by wind, water, or volcanic processes, resulting in horizontal strata composed of inclined … Continue reading
Posted in Reports
Tagged Aeolis Mons, cross-bedding, eolian processes, Gale Crater, Mount Sharp, sedimentary deposits, sediments
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HiRISE: Layers near Aeolis Mensae
Layers near Aeolis Mensae. Beautiful Mars series.
Posted in Reports
Tagged Aeolis Mensae, Beautiful Mars, High Resolution Imaging Science Experiment, HiRISE, layers, Mars Reconnaissance Orbiter, MRO, NASA, sediments, University of Arizona
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HiRISE: On the contemplation of the stratigraphy of another planet
On the contemplation of the stratigraphy of another planet. 255 km above the surface. This image uses the infrared-red-blue filter of the HiRISE camera. Beautiful Mars series.
Posted in Reports
Tagged Beautiful Mars, High Resolution Imaging Science Experiment, HiRISE, layers, Mars Reconnaissance Orbiter, MRO, NASA, Rabe Crater, sediments, stratigraphic column, stratigraphy, University of Arizona
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HiRISE: Clays of Ladon Basin
Ladon Basin was a large impact structure that was filled in by the deposits from Ladon Valles, a major ancient river on Mars. These wet sediments were altered into minerals such as various clay minerals. Clays imply chemistry that may … Continue reading
Posted in Reports
Tagged clay minerals, High Resolution Imaging Science Experiment, HiRISE, Ladon Basin, Ladon Valles, Mars Reconnaissance Orbiter, MRO, NASA, phyllosilicates, sediments, University of Arizona
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HiRISE: Eroded layers in Shalbatana Valles
Layers, probably sedimentary in origin, have undergone extensive erosion in this image of Shalbatana Valles, a prominent channel that cuts through Xanthe Terra. This erosion has produced several small mesas and exposed light-toned material that may differ in composition from … Continue reading
Posted in Reports
Tagged High Resolution Imaging Science Experiment, HiRISE, layers, Mars Reconnaissance Orbiter, MRO, NASA, sediments, Shalbatana Vallis, University of Arizona, Xanthe Terra
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