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Tag Archives: Melas Chasma
HiRISE: Mixtures of sulfates in Melas Chasma
Many locations on Mars have sulfates, which are sedimentary rocks formed in water. Within Valles Marineris, the large canyon system that cuts across the planet, there are big and thick sequences of sulfates. In this image, layering within the light-toned … Continue reading
Posted in Reports
Tagged High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, Melas Chasma, monohydrated sulfates, MRO, NASA, polyhydrated sulfates, sulfates, University of Arizona, Valles Marineris
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HiRISE: Faults in Melas Chasma
Faults in Melas Chasma. Beautiful Mars series.
Posted in Reports
Tagged Beautiful Mars, faulting, faults, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, Melas Chasma, MRO, NASA, tectonics, University of Arizona
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HiRISE: Clinoforms down in Melas Chasma
This group of steeply inclined light-toned layers is bounded above and below by unconformities (sudden or irregular changes from one deposit to another) that indicate a “break” where erosion of pre-existing layers was taking place at a higher rate than … Continue reading
Posted in Reports
Tagged High Resolution Imaging Science Experiment, HiRISE, layered deposits, Mars Reconnaissance Orbiter, Melas Chasma, MRO, NASA, sedimentary basins, sediments, unconformities, University of Arizona
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HiRISE: Terminal lobes of a large debris flow in Melas Chasma
Terminal lobes of a large debris flow in Melas Chasma. Beautiful Mars series.
Posted in Reports
Tagged Beautiful Mars, debris flows, High Resolution Imaging Science Experiment, HiRISE, lobate debris aprons, Mars Reconnaissance Orbiter, Melas Chasma, MRO, NASA, University of Arizona
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HiRISE: Deposits along Melas Chasma’s north wall
It has been known since the 1970s when the Viking orbiters took pictures of Mars that there are large (i.e., several kilometers-thick) mounds of light-toned deposits within the central portion of Valles Marineris. More recent higher resolution images of Mars, … Continue reading
Posted in Reports
Tagged High Resolution Imaging Science Experiment, HiRISE, interior layered deposits, Mars Reconnaissance Orbiter, Melas Chasma, MRO, NASA, University of Arizona, Valles Marineris
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Do salts draw water from atmosphere for RSLs?
Puzzles persist about possible water at seasonally dark streaks on Martian slopes, according to a new study of thousands of such features in the Red Planet’s largest canyon system. The study published today [in the Journal of Gephysical Research] investigated … Continue reading
Posted in Reports
Tagged Coprates Chasma, Melas Chasma, recurring slope lineae, RSL, salts, Valles Marineris
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HiRISE: Pitted cones in Melas Chasma
Pitted cones in Melas Chasma. Beautiful Mars series.
Posted in Reports
Tagged Beautiful Mars, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, Melas Chasma, MRO, NASA, pitted cones, pseudocones, University of Arizona
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HiRISE: Possible sulfates in west Melas Chasma
Melas Chasma is the widest segment of Valles Marineris, the largest canyon in the Solar System. In this region, hydrated sulfate salts have been detected, and are found extensively throughout the canyon. These salt-bearing deposits likely indicate that water was … Continue reading
Posted in Reports
Tagged High Resolution Imaging Science Experiment, HiRISE, hydrated sulfates, Mars Reconnaissance Orbiter, Melas Chasma, MRO, NASA, sulfates, University of Arizona, Valles Marineris
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