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Tag Archives: northern lowlands
THEMIS: Lyot Crater dune field
THEMIS Image of the Day, August 9, 2019. Lyot Crater is a large, complex crater in the northern lowlands of Vastitas Borealis. This image is located along the southern rim of the crater and shows part of the dune field … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, Lyot Crater, Mars Odyssey, NASA, northern lowlands, sand, sand dunes, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System, Vastitas Borealis
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CRISM: Olivine and pyroxene in ejecta from northern plains crater
CRISM scene HRL00003BEE covers an area in close proximity to a crater in the northern plains of Mars. In this image, we see strong Fe-rich olivine (yellow) and high calcium pyroxene (HCP, blue) signatures in the ejecta near the crater … Continue reading
Posted in Reports
Tagged Compact Reconnaissance Imaging Spectrometer for Mars, crater ejecta, CRISM, mafic minerals, Mars Reconnaissance Orbiter, MRO, NASA, northern lowlands, northern plains
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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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HiRISE: Frost-covered dunes
Frost-covered dunes. Sprinkled with hopes and dreams, no less. This is a relatively new monitoring site that seems to have heavy carbon-dioxide snowfall. HiRISE Picture of the Day archive [More at links]
Posted in Reports
Tagged CO2 frost, dunes, frost, High Resolution Imaging Science Experiment, HiPOD, HiRISE, HiRISE Picture of the Day, Mars Reconnaissance Orbiter, MRO, NASA, northern lowlands, northern plains, sand dunes, seasonal processes, snow, University of Arizona
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HiRISE: For your consideration
For your consideration. An alien landscape with dust devil streaks and craters slowing fading away into the mists of time. A twilight zone of geology, if you will. (Features like this are often called “thumbprint terrain”.) HiRISE Picture of the … Continue reading
Posted in Reports
Tagged Diacria, dust devil tracks, High Resolution Imaging Science Experiment, HiPOD, HiRISE, HiRISE Picture of the Day, Mars Reconnaissance Orbiter, MRO, NASA, northern lowlands, northern plains, thumbprint terrain, University of Arizona
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CRISM: Hydrated minerals of Cydonia Colles
In this scene we observe the knobs within the northern lowlands (Acidalia Planitia) that are Fe/Mg phyllosilicate-bearing (pink-blue) and small, patchy exposures of hydrated silica (green) surrounding the knobs. Previously, phyllosilicates have only been found within impact craters in the … Continue reading
Posted in Reports
Tagged Acidalia Planitia, clay minerals, Compact Reconnaissance Imaging Spectrometer for Mars, CRISM, crustal dichotomy, Cydonia Colles, hydrated silica, iron-magnesium phyllosilicates, Mars Reconnaissance Orbiter, MRO, NASA, northern lowlands, northern plains, phyllosilicates, plains, Southern Highlands
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THEMIS: Subdued northern plains craters
THEMIS Image of the Day, October 10, 2018. This VIS image shows the margin and ejecta surrounding two craters located in the northern plains. The rim and ejecta are very subdued compared to craters elsewhere in the same region. The … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, false color, Mars Odyssey, NASA, northern lowlands, northern plains, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System
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THEMIS: Amazonis Planitia in false color
THEMIS Image of the Day, September 21, 2018. This image shows a portion of Amazonis Planitia, part of the vast northern lowlands of Mars. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in … Continue reading
Posted in Reports
Tagged Amazonis Planitia, Arizona State University, ASU, false color, Mars Odyssey, NASA, northern lowlands, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System
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HiRISE: Translucent ice
Translucent ice. Also note the polygonal ground, another feature of expanding and contracting subsurface ice. Beautiful Mars series. [More at links]
Posted in Reports
Tagged Beautiful Mars, High Resolution Imaging Science Experiment, HiRISE, ice, ice polygons, Mars Reconnaissance Orbiter, MRO, NASA, northern lowlands, periglacial processes, periglacial terrain, University of Arizona
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Crustal dichotomy: First a giant impact, then a superplume at the antipode
The result of collaboration between researchers at UC Berkeley, USA and the Institute of Earth Sciences, Taiwan, suggests a two-stage process to explain the martian crustal dichotomy. The dichotomy is a 5-km elevation difference between the northern and southern hemispheres … Continue reading
Posted in Reports
Tagged Borealis basin, crustal dichotomy, crustal thickness, giant impacts, mantle dynamics, northern lowlands, northern plains, plume
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