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Tag Archives: volcanics
THEMIS: Winding channels of Elysium Fossae
THEMIS Image of the Day, July 16, 2018. Today’s VIS image shows part of one of the Elysium Fossae on the western flank of the Elysium volcanic complex. The fossae have both a tectonic and volcanic origin. The linear fractures, … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, Elysium Fossae, Elysium Planitia, lava flows, Mars Odyssey, NASA, tectonics, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System, volcanics
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HiRISE: Lava-coated craters
Lava-coated craters. The larger crater looks normal–dimpled depression with a protruding rim barely covered by lava which later deflated. The smaller depression looks deeper and steeper-sided, and the rim does not protrude, so it is probably below the level of … Continue reading
Posted in Reports
Tagged Beautiful Mars, craters, Elysium Planitia, High Resolution Imaging Science Experiment, HiRISE, lava flows, Mars Reconnaissance Orbiter, MRO, NASA, University of Arizona, volcanics
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THEMIS: Where the volcanic mountain meets the volcanic plains
THEMIS Image of the Day, July 12, 2018. Olympus Rupes is the name of the large escarpment surrounding Olympus Mons. The escarpment is a cliff where there is a large elevation change over a short distance. This VIS image is … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, lava flows, Mars Odyssey, NASA, Olympus Mons, Olympus Rupes, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System, volcanics
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HiRISE: Fractures on Pavonis Mons
Fractures on Pavonis Mons. This observation was suggested by students at the Mars Academy in Brazil. Here is their original rationale: “This “stressed-out” region of the northeastern slopes of Pavonis Mons contains multiple sets of sub-parallel faults, with down-thrown blocks indicating tensional … Continue reading
Posted in Reports
Tagged Beautiful Mars, faulting, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, Pavonis Mons, tectonics, University of Arizona, volcanics
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THEMIS: Daedalia Planum’s lava flows
THEMIS Image of the Day, July 11, 2018. The lava flows in this VIS image originate at Arsia Mons. Arsia Mons in the southermost of the three large Tharsis volcanoes. More THEMIS Images of the Day by geological topic.
Posted in Reports
Tagged Arizona State University, Arsia Mons, ASU, Daedalia Planum, lava flows, Mars Odyssey, NASA, Tharsis, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System, volcanics
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THEMIS: Giant pit crater collapse on Alba Mons
THEMIS Image of the Day, July 10, 2018. This VIS image is located on the eastern flank of Alba Mons. Linear faults and graben surround the volcano aligned north/south, intersecting and deflected around the summit. The large graben is called … Continue reading
Posted in Reports
Tagged Alba Mons, Arizona State University, ASU, graben, Mars Odyssey, NASA, Phlegethon Catena, tectonics, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System, volcanics
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THEMIS: Pavonis Mons flank meets volcanic plains
THEMIS Image of the Day, July 4, 2018. Today’s VIS image is of the eastern flank of Pavonis Mons where the volcano meets the surrounding volcanic plains. The arced features towards the top of the image are fractures and lava … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, graben, lava plains, Mars Odyssey, NASA, Pavonis Mons, pit craters, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System, volcanics
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THEMIS: Terra Sabaea lava tube turned into an open channel
THEMIS Image of the Day, July 3, 2018. This VIS image is located in Terra Sabaea near the margin of Syrtis Major Planum. The channel-like feature in the bottom of the image is an unnamed feature. There is a high … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, lava channel, lava tubes, Mars Odyssey, NASA, Syrtis Major, tectonics, Terra Sabaea, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System, volcanics
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Mars minerology points to cold, icy ancient climate
The climate throughout Mars’ early history has long been debated – was the Red Planet warm and wet, or cold and icy? New research published in Icarus provides evidence for the latter. Mars is littered with valley networks, deltas and … Continue reading
Posted in Reports
Tagged clay minerals, climate, climate change, gypsum, iron oxides, polyhydrated sulfates, Sisyphi Montes, Sisyphi Planum, smectites, tuyas, volcanics, volcanism, zeolites
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THEMIS: Rough lava flows on Daedalia Planum
THEMIS image of the Day, June 6, 2018. Today’s VIS image shows a small portion of the lava flows that comprise Daedalia Planum. The flows originated at Arsia Mons, the youngest of the three Tharsis volcanoes. The Tharsis volcanoes are … Continue reading
Posted in Reports
Tagged Arizona State University, Arsia Mons, ASU, Daedalia Planum, lava, lava flows, Mars Odyssey, NASA, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System, volcanics
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