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Tag Archives: crater lakes
HiRISE: Lakebeds in Holden Crater
Holden Crater was once filled by at least two different lakes. The sediments deposited in those lakes are relatively light-toned where exposed, as we see in this observation. Each layer represents a different point in time and perhaps a changing … Continue reading
Posted in Reports
Tagged crater lakes, High Resolution Imaging Science Experiment, HiRISE, Holden Crater, lake bed sediments, Mars Reconnaissance Orbiter, MRO, NASA, University of Arizona
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Curiosity: Water-altered (& faulted?) layers
Sol 1314, April 17, 2016. The Remote Micro-Imager (RMI) made this five-frame composite of layers in Mt. Sharp. The lower layers appear darker in color than the layers above, perhaps due to alteration by water during one or more of … Continue reading
Posted in Reports
Tagged Aeolis Mons, crater lakes, Curiosity, Gale Crater, Mars Science Laboratory, Mount Sharp, MSL, NASA, Piambo, Remote Micro-Imager, RMI, sediments
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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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THEMIS: Terra Sirenum – false color
THEMIS Image of the Day, March 15, 2016. Today’s false color image shows part of the plains of Terra Sirenum. The THEMIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, channels, crater lakes, lacustrine sediments, Mars Odyssey, NASA, Terra Sirenum, THEMIS, Thermal Emission Imaging System
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Curiosity: Clues how water shaped Mars landscape
Observations by NASA’s Curiosity Rover indicate Mars’ Mount Sharp was built by sediments deposited in a large lake bed over tens of millions of years. This interpretation of Curiosity’s finds in Gale Crater suggests ancient Mars maintained a climate that … Continue reading
Posted in Reports
Tagged Aeolis Mons, crater lakes, Curiosity, Gale Crater, Mars Science Laboratory, Mount Sharp, MSL, Murray Formation, NASA, Pahrump Hills, water
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HiRISE: Ancient lake sediments
This image shows some interesting fractured materials on the floor of an impact crater in Arabia Terra. There is a channel entering the crater and exiting it (see CTX image). This channel, along with an unusual deposit on the lowest … Continue reading
Posted in Reports
Tagged Arabia Terra, channels, crater lakes, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, sediments, University of Arizona
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Most deltas on Mars created by short, catastrophic floods
Rivers that run into lakes and other standing bodies of water drop sediment where the flow slackens as it enters the body of water. Over time, the accumulating material builds a delta — a wedge of sediment whose form can … Continue reading
Posted in Reports
Tagged atmosphere, channels, climate, climate change, crater lakes, deltas, floods, water
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