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Tag Archives: streamlined islands
THEMIS: Streamlined islands in Athabasca Valles
THEMIS Image of the Day, July 2, 2019. This VIS image shows part of the channel called Athabasca Valles. Several streamlined islands are visible at the top of the image. The source of the flood was likely an outburst of … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, Athabasca Valles, catastrophic floods, fluvial channels, fluvial landforms, Mars Odyssey, NASA, outflow channels, streamlined islands, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System
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HiRISE: Cored island
Cored island. This channel may have been used by both lava and water. One of the processes produced a crater-cored island and later, the downstream side was eroded away, leaving knobs and an inverted streamlined form. Beautiful Mars series. [More … Continue reading
Posted in Reports
Tagged Beautiful Mars, craters, fluvial channels, High Resolution Imaging Science Experiment, HiRISE, lava flows, Mars Reconnaissance Orbiter, MRO, NASA, streamlined islands, University of Arizona
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HiRISE: All that the lava leaves behind
All that the lava leaves behind. There are streamlined and eroded forms in this lava channel, a region with very little HiRISE coverage. Beautiful Mars series. [More at links]
Posted in Reports
Tagged Beautiful Mars, High Resolution Imaging Science Experiment, HiRISE, lava, lava flows, Mars Reconnaissance Orbiter, MRO, NASA, streamlined islands, Tharsis, University of Arizona, volcanics
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HiRISE: Platy flow in Elysium Planitia
A channel segment amid platy-ridged flows in central Elysium Planitia. Beautiful Mars series.
Posted in Reports
Tagged Beautiful Mars, channels, Elysium Planitia, High Resolution Imaging Science Experiment, HiRISE, lava flows, Mars Reconnaissance Orbiter, MRO, NASA, streamlined islands, University of Arizona, volcanics
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HiRISE: Landslide!
This image finally completes a stereo pair with another observation acquired in 2007. It shows a fresh (well-preserved) landslide scarp and rocky deposit off the edge of a streamlined mesa in Simud Valles, a giant outflow channel carved by ancient … Continue reading
Posted in Reports
Tagged High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, mass wasting, MRO, NASA, Simud Valles, streamlined islands, University of Arizona
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HiRISE: Long and winding channel in Tharsis
The Tharsis region of Mars is covered in vast lava flows, many with channels. Some channels, however, resemble features that may have been formed by water. In this image, we see a smooth, flat-bottomed channel within the roughly irregular edges … Continue reading
Posted in Reports
Tagged High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, streamlined islands, Tharsis, University of Arizona, volcanics
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Karun Valles & its braided alluvial fan
Planetary Geomorphology Image of the Month, September 29, 2016: Solmaz Adeli (DLR, Institute of Planetary Research, Berlin). The Amazonian period on Mars, meaning roughly the last 3 Ga, is globally believed to have been cold and hyperarid [e.g., Marchant and … Continue reading
Posted in Reports
Tagged alluvial fan deposits, alluvial fans, Ariadnes Colles, cataracts, fluvial channels, fluvial deposits, fluvial erosion, fluvial landforms, Karun Valles, streamlined islands, Terra Cimmeria
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Mars had lakes & streams long after early wet era
Lakes and snowmelt-fed streams on Mars formed much later than previously thought possible, according to new findings using data primarily from NASA’s Mars Reconnaissance Orbiter. The recently discovered lakes and streams appeared roughly a billion years after a well-documented, earlier … Continue reading
Posted in Reports
Tagged Arabia Terra, fluvial channels, fluvial deposits, fluvial erosion, fluvial landforms, lakes, paleolakes, streamlined islands
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HiRISE: A streamlined form in Lethe Vallis
This image shows a portion of Lethe Vallis, an outflow channel that also transported lava. Another investigation of this area (Balme et al., 2011) discovered a repeat pattern of dune-like forms in the channel interpreted as fluvial dunes (or, giant … Continue reading
Posted in Reports
Tagged current ripples, High Resolution Imaging Science Experiment, HiRISE, Lethe Vallis, Mars Reconnaissance Orbiter, MRO, NASA, outflow channels, streamlined islands, University of Arizona
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HiRISE: Ancient streamlined islands of the Palos outflow channel
This image shows the northern terminus of an outflow channel located in the volcanic terrains of Amenthes Planum. The channel sources from the Palos impact crater to the south, where water flowed into the crater from Tinto Vallis and eventually … Continue reading
Posted in Reports
Tagged fluvial channels, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, outflow channels, Palos outflow channel, streambeds, streamlined islands, University of Arizona
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