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Tag Archives: lacustrine sediments
HiRISE: Layers in Tikhonravov
Layers in Tikhonravov. The objective of this observation is to examine layers outside of a crater within the 344-kilometer diameter Tikhonravov Crater. Tikhonravov is believed to have once held a giant lake and was named after Mikhail Tikhonravov, a Russian … Continue reading
Evidence for fluvial deposition in Arabia Terra
[Editor’s note: From a paper by Joel Davis and six co-authors recently published in the Journal of Geophysical Research.] A Diverse Array of Fluvial Depositional Systems in Arabia Terra: Evidence for mid‐Noachian to Early Hesperian Rivers on Mars • Fluvial … Continue reading
Posted in Reports
Tagged Arabia Terra, fluvial channels, fluvial deposits, fluvial erosion, fluvial landforms, fluvial processes, inverted channels, lacustrine sediments, lake bed sediments, open-basin lakes, paleolakes, sedimentary deposits, sinuous ridge, valleys
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Layered-sulfates’ history in NE Syrtis Major
[Editor’s note: From a paper by Daven Quinn and Bethany Ehlmann recently published in the Journal of Geophysical Research.] The Deposition and Alteration History of the Northeast Syrtis Major Layered Sulfates • The eroded stratigraphy at Northeast Syrtis Major includes … Continue reading
Posted in Reports
Tagged diagenesis, groundwater, Isidis Basin, lacustrine sediments, layered deposits, NE Syrtis Major, phyllosilicates, polyhydrated sulfates, stratigraphy, sulfates, Syrtis Major
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HiRISE: Horse playing the flute
Horse playing the flute. Maybe you can see a horse playing a flute here, but really this is a portion of the floor of Eberswalde Crater, at one time candidate landing site for the Mars Science Laboratory. The light-toned bedrock … Continue reading
Posted in Reports
Tagged Beautiful Mars, bedrock, Eberswalde Crater, eolian processes, High Resolution Imaging Science Experiment, HiRISE, lacustrine sediments, lake bed sediments, landing sites, Mars Reconnaissance Orbiter, MRO, NASA, sand, sand dunes, University of Arizona
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HiRISE: A sequence of beauty in Terby Crater
The north-facing wall of a moat-like depression in the middle of Terby Crater exposes a beautiful 400 meter-high sequence of light-toned, repetitive sedimentary layers. These deposits are often obscured by darker-toned patches of material as well as ripples and dunes. … Continue reading
Posted in Reports
Tagged High Resolution Imaging Science Experiment, HiRISE, lacustrine sediments, lake bed sediments, Mars Reconnaissance Orbiter, MRO, NASA, sediments, Terby Crater, University of Arizona
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HiRISE: Layers in Galle Crater
This image shows a layered deposit in Galle Crater, located in the Southern cratered highlands. The geologic history of Galle Crater is not well constrained, and it contains a variety of features that have been interpreted as fluvial, lacustrine or … Continue reading
Posted in Reports
Tagged Aeolis Planum, fluvial deposits, Galle Crater, glacial deposits, High Resolution Imaging Science Experiment, HiRISE, lacustrine sediments, layered deposits, layers, Mars Reconnaissance Orbiter, MRO, NASA, unconformities, University of Arizona
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Sedimentary basins on Mars contain a lot more sediments than we thought!
Planetary Geomorphology Image of the Month, March 30, 2017: Francesco Salese (Italian Space Agency). The nature of the early Martian climate is one of the major unanswered questions of planetary science. To date the geologic evidence that Mars once had … Continue reading
Posted in Reports
Tagged lacustrine sediments, sedimentary basins, sedimentary debris, sediments
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HiRISE: Fans and crater floor deposits southeast of Vinogradov Crater
This white, purple, and pink surface is located on the floor of an impact crater on the southeast rim of the larger Vinogradov Crater in southern Margaritifer Terra. The surface consists of what is left of a series of thin … Continue reading
Posted in Reports
Tagged alluvial fan deposits, High Resolution Imaging Science Experiment, HiRISE, lacustrine sediments, lake bed sediments, layers, Margaritifer Terra, Mars Reconnaissance Orbiter, MRO, NASA, playas, sediments, University of Arizona, Vinogradov Crater
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THEMIS: Terby Crater’s unread geo-history book
THEMIS Image of the Day, August 3, 2016. Today’s false color image shows the northern part of Terby Crater. This image shows the layered deposits that fill the crater. The THEMIS camera contains 5 filters. The data from different filters can … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, lacustrine sediments, layered deposits, Mars Odyssey, NASA, sediments, Terby Crater, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System
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Sedimentology and hydrology of Amazonian paleo-fluvio-lacustrine system in Moa Valles
Planetary Geomorphology Image of the Month, March 31, 2016: Francesco Salese (Università D’Annunzio, Italy). Mars, is one of the planetary bodies where water flowed and where it may transiently flow today under certain conditions. Many martian paleodrainage systems and well-preserved … Continue reading
Posted in Reports
Tagged crater lakes, fluvial channels, lacustrine sediments, lake bed sediments, Moa Valles, valley networks
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