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Tag Archives: lava flows
Lava flows resurfaced crater lakes after water was gone
Fire and water didn’t mix when it came to resurfacing basins that lie along Martian fluvial valley networks. A study of some 30 open-basin lakes (paleolakes) with floors covered by lava flows has concluded that at least these basins were … Continue reading
Posted in Reports
Tagged CRISM, CTX, Gusev Crater, HiRISE, HRSC, lava flows, Mars Exploration Rovers, OMEGA, open-basin lakes, paleolakes, Spirit, TES, THEMIS
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Hesperian lava floods thicker than previously thought
A study examining layered “megablocks” of lava in the central parts of Mars craters concludes that flood lavas in the Hesperian epoch were at least 23 percent thicker than previously known. The research says this shows there has been more … Continue reading
Posted in Reports
Tagged climate, HiRISE, lava flows, Mars Reconnaissance Orbiter, THEMIS
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Touching Mars from Earth
Remote sensing of Mars usually happens when spacecraft sensors look down from orbit around the Red Planet. But sensors on Earth can also get in on the fun, especially when they actively reach out to the planet via radio waves. … Continue reading
Posted in Reports
Tagged Amazonis, Arecibo Observatory, Cerberus, Elsium, lava flows, lava roughness, radar, Tharsis, Utopia, volcanic activity, volcanos
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“Olympic” ocean in Tharsis?
Two features of Olympus Mons have puzzled geologists since they were discovered decades ago. First are the “aureole” deposits, rough terrain extending as much as 400 kilometers (250 miles) from the volcano. And second is the scarp, about 8,000 meters … Continue reading
Posted in Reports
Tagged lava flows, Oceanus, Olympus Mons, polar ocean, Tharsis, volcanos
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Lava coils: new form of flow discovered on Mars
High-resolution photos of Martian lava flows show coiling spiral patterns that resemble snail or nautilus shells. Such patterns have been found in a few locations on Earth, but never before on Mars. The discovery appears in a paper in Science … Continue reading
Posted in Reports
Tagged Athabasca Valles, Cerberus Palus, HiRISE, lava coils, lava flows, Mars Reconnaissance Orbiter, volcanism
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Did Tharsis change its volcanic style?
Volcanic activity on Mars tends toward an “effusive” eruption style: it produces many low-profile, broad-skirted volcanos. These are made with sheets of runny lavas that flow like warm motor oil for long distances, spilling over and around obstacles or burying … Continue reading
Posted in Reports
Tagged cinder cones, lava flows, pyroclastic eruptions, Tharsis, volcanos
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Hunting for young lava flows
The quest to find the youngest, most recent lava flows on Mars inevitably leads back to two highly volcanic regions: Elysium and especially Tharsis. A group of researchers led by Ernst Hauber (DLR, Berlin) has zeroed in on Tharsis. Ignoring … Continue reading
Posted in Reports
Tagged CTX, lava flows, Mars Reconnaissance Orbiter, Tharsis, volcanos
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