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Tag Archives: Medusae Fossae Formation
HiRISE: Wind erosion, Medusae Fossae Formation
Wind erosion of the Medusae Fossae Formation. Beautiful Mars series.
Posted in Reports
Tagged Beautiful Mars, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, Medusae Fossae Formation, MRO, NASA, University of Arizona, wind erosion
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Aeolis Serpens, Mars’ longest sinuous ridge, is an ancient riverbed
A linear ridge that winds for more than 200 kilometers (120 miles) through part of South Australia was a river channel roughly 10 million years ago. After the paleoriver stopped flowing, silica-rich groundwater seeped into the riverbed, cementing its sediments.
Posted in Reports
Tagged Aeolis Dorsa, Aeolis Serpens, climate, CTX, fluvial channels, fluvial landforms, groundwater, HiRISE, Medusae Fossae Formation, sinuous ridge, water
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Explosive eruptions in dense ancient atmospheres
Explosive volcanic eruptions on an earlier Mars with a thicker atmosphere would have scattered fine ash (pyroclastic debris) mainly east or west of the volcano, a new study finds. Also, a denser ancient atmosphere supports the addition of Arsia and … Continue reading
Posted in Reports
Tagged Apollinaris Mons, Arsia Mons, atmosphere, Medusae Fossae Formation, Pavonis Mons, pyroclastic eruptions, volcanic ash, volcanos
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Gale Crater’s mound: part of the Medusae Fossae Formation?
The Medusae Fossae Formation (MFF) is a thick deposit of soft materials that erodes easily by wind. The formation spreads in several large patches between the volcanic provinces of Elysium and Tharsis. In addition, outliers extend farther afield, with some … Continue reading
Posted in Reports
Tagged Curiosity, Gale Crater, Mars Odyssey, Mars Science Laboratory, Medusae Fossae Formation, MFF, MSL, THEMIS, Thermal Emission Imaging System
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Airblast avalanches
The aerial blast wave from a meteorite impact can trigger dust avalanches in the vicinity, says a new paper published in Icarus. A group of scientists led by Kaylan Burleigh (University of Arizona) reached this conclusion after studying a cluster … Continue reading
Posted in Reports
Tagged airblast, craters, dust, dust avalanches, HiRISE, impacts, Mars Reconnaissance Orbiter, Medusae Fossae Formation, meteorites, slope streaks
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When Apollinaris Patera went boom
Stretching more than 5,000 kilometers (3,000 miles) between the two volcanic centers of Tharsis and Elysium is a geological enigma, the Medusae Fossae formation. The formation, which lies in several separate patches, appears to be made of easily eroded materials, … Continue reading
Posted in Reports
Tagged Apollinaris Patera, atmosphere, Medusae Fossae Formation, volcanos, wind
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