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Tag Archives: ground ice
Do ice-squeezed aquifers cause marsquakes?
As the Mars InSight lander begins listening to the interior of Mars, some scientists are already proposing that some marsquakes could be signals of groundwater beneath the frozen surface of the Red Planet. The idea, proposed by Michael Manga, a … Continue reading
Posted in Reports
Tagged aquifers, faulting, faults, ground ice, groundwater, ice, InSight, Interior Exploration Using Seismic Investigations Geodesy and Heat Transport, marsquakes
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Stagnant ice deposits in Terra Cimmeria
[Editor’s note: From a paper by Solmaz Adeli and five co-authors recently published in the Journal of Geophysical Research.] Geomorphological evidence of localized stagnant ice deposits in Terra Cimmeria, Mars • Small debris‐covered stagnant ice deposits (termed valley fill deposits … Continue reading
Posted in Reports
Tagged ground ice, ice, lineated valley fill, Terra Cimmeria, valley fill deposits, VFD
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THEMIS: Ice-rich mantling in Utopia crater
THEMIS Image of the Day, April 16, 2019. This false-color VIS image shows a crater located in Utopia Planitia. The crater’s interior shows ample evidence for an ice-rich mantling material that has slipped and slumped away from the crater’s upraised … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, false color, ground ice, ice-rich mantling, Mars Odyssey, NASA, northern lowlands, northern plains, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System, Utopia Planitia
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Mapping potential sources of Mars water
Missions carrying humans to Mars will require on-site resources, and a project led by Planetary Science Institute (PSI) scientists Nathaniel Putzig and Gareth Morgan is mapping the availability of potential shallow water-ice sources across the surface of the Red Planet. … Continue reading
Posted in Reports
Tagged Acidalia Planitia, Arcadia Planitia, Deuteronilus Mensae, ground ice, groundwater, Protonilus Mensae, Subsurface Water Ice Mapping, SWIM, Utopia Planitia
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HiRISE: The slow charm of brain terrain
You are staring at one of the unsolved mysteries on Mars. This surface texture of interconnected ridges and troughs, referred to as “brain terrain” is found throughout the mid-latitude regions of Mars. (This image is in Protonilus Mensae.) This bizarrely … Continue reading
Posted in Reports
Tagged brain terrain, glacial deposits, ground ice, High Resolution Imaging Science Experiment, HiRISE, ice, Mars Reconnaissance Orbiter, MRO, NASA, periglacial processes, periglacial terrain, Protonilus Mensae, University of Arizona
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Dunes decrease in size at high southern latitudes, likely from ground ice cementation
[Editor’s note: From a paper by Maria Banks and seven co-authors recently published in the Journal of Geophysical Research.] Patterns in Mobility and Modification of Middle‐ and High‐Latitude Southern Hemisphere Dunes on Mars • The mobility of dunes and ripples … Continue reading
Posted in Reports
Tagged dunes, ground ice, sand dunes, Southern Highlands, southern polar dunes
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HiRISE: Gullies and crevasses on a mesa
Gullies and crevasses on a mesa. Beautiful Mars series. [More at links]
Posted in Reports
Tagged Beautiful Mars, Deuteronilus Mensae, ground ice, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, periglacial processes, periglacial terrain, University of Arizona
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THEMIS: Sinuous features hint at ground ice
THEMIS Image of the Day, November 8, 2018. This VIS image is located in an unnamed crater in Noachis Terra. The sinuous feature near the bottom of the crater rim appears to have been caused by down slope movement of … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, ground ice, Mars Odyssey, mass wasting, NASA, Noachis Terra, periglacial processes, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System
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THEMIS: Soft-featured craters in Arcadia Planitia
THEMIS Image of the Day, October 19, 2018. This false-color VIS image shows some of the plains and craters located in Arcadia Planitia. The soft-looking features in the impact craters indicate ground ice at shallow depths below the surface. In … Continue reading
Posted in Reports
Tagged Arcadia Planitia, Arizona State University, ASU, debris aprons, fluidized ejecta, ground ice, impact craters, Mars Odyssey, NASA, periglacial processes, periglacial terrain, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System
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