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Tag Archives: weathering
Weathering on early Mars bad for forming carbonates
[Editor’s note: From a paper by Fabien Baron and three co-authors recently published in the Journal of Geophysical Research.] New Constraints on Early Mars Weathering Conditions From an Experimental Approach on Crust Simulants • Chemical weathering in mildly acidic conditions … Continue reading
Weathering on icy terrestrial volcanos may tell about weathering on Mars
[Editor’s note: From a paper by Alicia Rutledge and five co-authors recently published in Geophysical Research Letters]. Silica Dissolution and Precipitation in Glaciated Volcanic Environments and Implications for Mars • Chemical alteration of glaciated volcanic bedrock is dominated by silica … Continue reading
Meteorites reveal lasting drought on Mars
The lack of liquid water on the surface of Mars today has been demonstrated by new evidence in the form of meteorites on the Red Planet examined by an international team of planetary scientists. In a study led by the … Continue reading
HiRISE: Weathered
Weathered. Beautiful Mars series.
Posted in Reports
Tagged Beautiful Mars, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, mass wasting, MRO, NASA, University of Arizona, weathering
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HiRISE: Scalloped depressions in Utopia Planitia
Scalloped depressions in Utopia Planitia. Beautiful Mars series.
Posted in Reports
Tagged Beautiful Mars, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, University of Arizona, Utopia Planitia, weathering
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THEMIS: Angustus Labrynthus
THEMIS Image of the Day, November 11, 2014. The intersecting ridges in this VIS image are part of Angustus Labyrinthus, informally called Inca City. More THEMIS Images of the Day by geological topic.
Posted in Reports
Tagged "Inca City", Angustus Labrynthus, Arizona State University, ASU, Mars Odyssey, NASA, THEMIS, Thermal Emission Imaging System, weathering
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HiRISE: Phantom zone
Phantom zone. Beautiful Mars series.
Posted in Reports
Tagged Beautiful Mars, dunes, dust, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, mass wasting, MRO, NASA, sand, University of Arizona, weathering
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HiRISE: A rough place to be
A rough place to be. Beautiful Mars series.
Posted in Reports
Tagged Beautiful Mars, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, mass wasting, MRO, NASA, University of Arizona, weathering
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CRISM image: phyllosilicates in a Tyrrhena Terra crater rim
This image shows layers clays and clay-like minerals called phyllosilicates that are exposed in Tyrrhena Terra, part of Mars’ ancient, heavily-cratered southern highlands. Tyrrhena Terra is roughly 2,300 kilometers (1,430 miles) across, about the size of Earth’s continent of Antarctica! … Continue reading
Posted in Reports
Tagged Compact Reconnaissance Imaging Spectrometer for Mars, CRISM, Mars Reconnaissance Orbiter, MRO, NASA, phyllosilicates, Tyrrhena Terra, weathering
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Martian surface: icy, cold, and dry for 4 billion years
Maybe the warm and wet environment on early Mars that scientists have long proposed wasn’t at the surface, but rather buried in the crust. That’s one of the conclusions of a new review that looks at Martian clay minerals and … Continue reading