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Tag Archives: central peaks
THEMIS: Bamberg Crater dune field
THEMIS Image of the Day, August 14, 2019. Today’s VIS image shows a small field of sand dunes on the floor of Bamberg Crater. At the top of the image is a small group of peaks forming a rough circle. … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, Bamberg Crater, central peaks, Mars Odyssey, NASA, peak-ring craters, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System
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HiRISE: Bedrock in the central peaks of Hale Crater
This long image is entirely over the extensive central peak complex of Hale Crater. Of particular interest are bedrock outcrops and associated fine-grained sediments with different colors. This 153-kilometer diameter crater was named after American astronomer George Ellery Hale. [More … Continue reading
Posted in Reports
Tagged bedrock, central peaks, Hale Crater, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, University of Arizona
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HiRISE: Gullies in Galle
This image was taken of the hills that resulted from uplifted rocks due to an impact that formed the 230-kilometer diameter Galle Crater. These hills form a segment of a circle known as a “peak ring” and this particular formation … Continue reading
Posted in Reports
Tagged central peaks, Galle Crater, gullies, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, University of Arizona
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HiRISE: Exposing the rock in impact craters
In this complex crater (about 44-kilometers in diameter), we see bedrock in several locations from different depths in the crust. The central uplift exposes large fragments of green-toned bedrock that possibly originated from several kilometers beneath the surface. To the … Continue reading
Posted in Reports
Tagged bedrock, central peaks, High Resolution Imaging Science Experiment, HiRISE, impact craters, Mars Reconnaissance Orbiter, MRO, NASA, University of Arizona
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HiRISE: Cross-section of a complex crater
This image shows a cross-section of a complex crater in Terra Cimmeria. Starting in the center, we see a series of peaks with exposed bedrock. These peaks formed during the impact event when material that was originally several kilometers below … Continue reading
Posted in Reports
Tagged bedrock, central peaks, complex craters, High Resolution Imaging Science Experiment, HiRISE, impact melt, Mars Reconnaissance Orbiter, MRO, NASA, Terra Cimmeria, University of Arizona
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How do impacts make Mars central-pit craters?
[Editor’s note: From a paper by Samantha Peel and two co-authors recently published in the Journal of Geophysical Research.] Formation of central pits in impact craters on Mars: A statistical investigation of proposed mechanisms • Formation mechanisms for central pits … Continue reading
THEMIS: Central peaks of Hale Crater
THEMIS Image of the Day, January 11, 2019. Today’s VIS image shows part of the floor of Hale Crater and the elongate axis of the central peak mountains. Hale Crater is an example of an oblique impact crater. The mountain … Continue reading
Posted in Reports
Tagged Argyre Planitia, Arizona State University, ASU, central peaks, Hale Crater, Mars Odyssey, NASA, oblique impacts, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System
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HiRISE: Tell-tale bedrock in Tyrrhena Terra
Large craters, like this 50-kilometer diameter one, can uplift material from below and form a mountain-like central peak. Craters of this size on Mars become unstable as they form and collapse due to gravity. Craters with central peaks and terraced … Continue reading
Posted in Reports
Tagged bedrock, central peaks, complex craters, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, Tyrrhena Terra, University of Arizona
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HiRISE: Dunes next to a central peak
The dunes, they are coming for you! These dunes are next to a central peak in a crater. Beautiful Mars series. [More at links]
Posted in Reports
Tagged Acidalia Planitia, Beautiful Mars, central peaks, dunes, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, polar sand dunes, University of Arizona
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THEMIS: Milankovic Crater dunes
THEMIS Image of the Day, June 4, 2018. Milankovic Crater is located in central Arcadia Planitia. This VIS image shows small dark sand dunes on the crater floor, and larger dunes within the central crater peak/pit feature. With a diameter … Continue reading
Posted in Reports
Tagged Acidalia Planitia, active dunes, Arizona State University, ASU, central peaks, dunes, Mars Odyssey, Milankovic Crater, NASA, peak-ring craters, sand dunes, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System
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