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Tag Archives: gullies
HiRISE: Scars of erosion
This large crescent dune in Kaiser Crater shows the scars of many types of seasonal erosional activities. Along its downwind slope are large gullies which are active during winter, when frost drives dune material downslope, carving out channels and creating … Continue reading
Posted in Reports
Tagged dust devil tracks, erosion, gullies, High Resolution Imaging Science Experiment, HiRISE, Kaiser Crater, Mars Reconnaissance Orbiter, MRO, NASA, University of Arizona
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HiRISE: Old features and new
This image covers a portion of a typical impact crater in Terra Sirenum at about 40 degrees south latitude on Mars. At the top of the image, outside the crater rim, there is a mid-latitude mantle, rough in places where … Continue reading
Posted in Reports
Tagged alluvial fan deposits, erosion, gullies, High Resolution Imaging Science Experiment, HiRISE, ice-rich mantling, impacts, Mars Reconnaissance Orbiter, mid-latitude mantling, MRO, NASA, Terra Sirenum, University of Arizona
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HiRISE: Contrasting colors of crater dunes & gullies
Gullies are relatively common features in the steep slopes of crater walls, possibly formed by dry debris flows, movement of carbon dioxide frost, or perhaps the melting of ground ice. This example shows a section of crater wall from the … Continue reading
Posted in Reports
Tagged dunes, gullies, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, University of Arizona
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THEMIS: Crater channels, gullies, dunes & a pit
THEMIS Image of the Day, January 25, 2017. This VIS image shows part of an unnamed crater in Terra Cimmeria. The crater rim is dissected by gullies, and the central pit has several channels entering from the higher elevation of … Continue reading
Posted in Reports
Tagged active dunes, Arizona State University, ASU, central pit, channels, dunes, gullies, Mars Odyssey, NASA, sand dunes, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System
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HiRISE: Unusual gullied slope
Unusual gullied slope in southern mid-latitudes. Beautiful Mars series.
Posted in Reports
Tagged Beautiful Mars, gullies, High Resolution Imaging Science Experiment, HiRISE, ice-rich mantling, mantling material, Mars Reconnaissance Orbiter, MRO, NASA, University of Arizona
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THEMIS: Terra Sirenum dunes & gullies
THEMIS Image of the Day, January 16, 2017. Today’s VIS image is of an unnamed crater in Terra Sirenum. There are gullies dissecting part of the crater rim, and small dunes on the crater floor. More THEMIS Images of the … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, dunes, gullies, Mars Odyssey, NASA, sand dunes, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System
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HiRISE: Equatorial proto-gullies
Equatorial proto-gullies. Beautiful Mars series.
Posted in Reports
Tagged Beautiful Mars, gullies, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, mass wasting, MRO, NASA, University of Arizona
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THEMIS: Mega-gully on edge of Valles Marineris
THEMIS Image of the Day, December 13, 2016. Today’s VIS image shows one of the mega sized gullies located on the plains just south of Ius Chasma. This gully empties from Sinai Planum into the chasma. More THEMIS Images of … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, gullies, Ius Chasma, Mars Odyssey, NASA, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System, Valles Marineris
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THEMIS: Gullies in Noachis crater rim
THEMIS Image of the Day, December 9, 2016. Numerous large gullies dissect the inner rim of this unnamed crater in Noachis Terra. (If the gullies looks like ridges, remember that the lighting is coming from the right side of the … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, gullies, Mars Odyssey, NASA, Noachis Terra, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System
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HiRISE: Gully on Hecates Tholus
Gully on Hecates Tholus. Beautiful Mars series.
Posted in Reports
Tagged Beautiful Mars, gullies, Hecates Tholus, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, University of Arizona, volcanics
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