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Tag Archives: inverted topography
Inverted wadis on Earth: analogs for Mars
Planetary Geomorphology Image of the Month, February 1, 2016: Abdallah Zaki (Ain Shams University). The evolution of inverted topography on Earth and Mars can result from surface armouring of the channel, infilling of channels/valleys by lava flows, and cementation of … Continue reading
Posted in Reports
Tagged channels, inverted channels, inverted topography, inverted wadis
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HiRISE: Inverted streams in the Aeolis region
The sinuous ridges in this image display strong characteristics of ancient meandering riverbeds that are preserved as inverted topography (blue). The ancient river sediments that make up the ridges might have allowed fluids to produce cements (e.g., calcite or iron … Continue reading
Posted in Reports
Tagged Aeolis Mensae, High Resolution Imaging Science Experiment, HiRISE, inverted channels, inverted topography, Mars Reconnaissance Orbiter, MRO, NASA, University of Arizona
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HiRISE: Inverted meandering rivers at possible future landing site
This image contains interesting examples of crosscutting, sinuous and straight ridges. The ridge in the lower left of the image (orange) has gradual bends and well-defined positive relief, while the ridge in the upper right (blue) exhibits a degree of … Continue reading
Posted in Reports
Tagged High Resolution Imaging Science Experiment, HiRISE, inverted channels, inverted topography, Mars Reconnaissance Orbiter, MRO, NASA, ridges, University of Arizona
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HiRISE: Inverted channels on Saheki Crater fan
Inverted channels on fan in Saheki Crater. Beautiful Mars series.
Posted in Reports
Tagged Beautiful Mars, channels, High Resolution Imaging Science Experiment, HiRISE, inverted channels, inverted topography, Mars Reconnaissance Orbiter, MRO, NASA, Saheki Crater, University of Arizona
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HiRISE: Fine-branched ridges
This image shows numerous branching ridges with various degrees of sinuosity. These branching forms resemble tributaries funneling and draining into larger channel trunks towards the upper portion of the scene. The raised relief of these branching ridges suggests that these … Continue reading
Posted in Reports
Tagged channels, fluvial channels, fluvial deposits, High Resolution Imaging Science Experiment, HiRISE, inverted channels, inverted topography, Mars Reconnaissance Orbiter, MRO, NASA, University of Arizona
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HiRISE: Branched ridge landform in valley center
Branched ridge landform in center of a valley — Could this landform represent an inverted braided stream? Beautiful Mars series.
Posted in Reports
Tagged Beautiful Mars, High Resolution Imaging Science Experiment, HiRISE, inverted channels, inverted topography, Mars Reconnaissance Orbiter, MRO, NASA, University of Arizona
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HiRISE: Discontinuous sinuous ridge
A discontinuous sinuous ridge on the fourth planet from Sol. Beautiful Mars series.
Posted in Reports
Tagged Beautiful Mars, fluvial landforms, High Resolution Imaging Science Experiment, HiRISE, inverted channels, inverted topography, Mars Reconnaissance Orbiter, MRO, NASA, sinuous ridge, University of Arizona
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Fresh shallow valley becomes inverted channel
This image shows a portion of a long valley system in northern Arabia Terra. The valley must be relatively young because it cuts through the ejecta of an impact crater that still retains it entire ejecta blanket, indicating the crater … Continue reading
Posted in Reports
Tagged Arabia Terra, High Resolution Imaging Science Experiment, HiRISE, inverted channels, inverted topography, Mars Reconnaissance Orbiter, MRO, NASA, University of Arizona
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HiRISE: Inverted channels and topography
“We live in an age of universal investigation, and of exploration…” — Alfred de Vigny Beautiful Mars series.
Posted in Reports
Tagged Beautiful Mars, High Resolution Imaging Science Experiment, HiRISE, inverted channels, inverted topography, Mars Reconnaissance Orbiter, MRO, NASA, University of Arizona
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HiRISE: Sinuous ridge materials in Reuyl Crater
There are some interesting erosional signs in this observation, which will make for a good comparison with other intracrater fans and fluvial sedimentary landforms. We can also see an inverted channel system, possibly ponded toward the southwest. As we’ve learned … Continue reading
Posted in Reports
Tagged High Resolution Imaging Science Experiment, HiRISE, inverted channels, inverted topography, layered deposits, Mars Reconnaissance Orbiter, MRO, NASA, Reuyl Crater, sediments, sinuous ridge, University of Arizona
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