Tag Archives: volcanics

THEMIS: Collapsed lava tubes on Pavonis Mons

THEMIS Image of the Day, October 30, 2017. This image shows part of the southern flank of Pavonis Mons. The linear and sinuous features mark the locations of lava tubes and graben that occur on both sides of the volcano … Continue reading

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THEMIS: Nili Patera fractures and dunes in false color

THEMIS Image of the Day, October 27, 2017. This false color image covers the region from Nili Patera at the top of the frame to the dunes near Meroe Patera (which is off the bottom of the image). High resolution … Continue reading

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THEMIS: Dunes and wrinkle ridge, Meroe Patera

THEMIS Image of the Day, October 26, 2017. This image shows part of the dune field near Meroe Patera. High resolution imaging by other spacecraft has revealed that the dunes in this region are moving. Winds are blowing the dunes … Continue reading

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THEMIS: Large wrinkle ridge in Meroe Patera

THEMIS Image of the Day, October 25, 2017. This image shows part of the dune field near Meroe Patera. The large ropy ridge running down the picture is a wrinkle ridge. These are caused when compression forces cause lava flows … Continue reading

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HiRISE: Platy flow in Elysium Planitia

A channel segment amid platy-ridged flows in central Elysium Planitia. Beautiful Mars series.

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THEMIS: Dunes, wrinkle ridges, wind streaks

THEMIS Image of the Day, October 24, 2017. This image shows part of the dune field near Meroe Patera. High resolution imaging by other spacecraft has revealed that the dunes in this region are moving. Winds are blowing the dunes … Continue reading

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THEMIS: Thin lines of dunes on Meroe Patera

THEMIS Image of the Day, October 23, 2017. This image shows part of the dune field near Meroe Patera. High resolution imaging by other spacecraft has revealed that the dunes in this region are moving. Winds are blowing the dunes … Continue reading

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HiRISE: A highly disrupted crater

This 2.5-kilometer diameter crater has been significantly altered from the usual bowl-shaped appearance we associate with craters. Material has covered significant portions of the ejecta and filled in the crater. This fill material has since been subject to erosion—like boulders … Continue reading

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THEMIS: Wind streaks near Meroe Patera

THEMIS Image of the Day, October 20, 2017. This image shows part of the dune field near Meroe Patera. High resolution imaging by other spacecraft has revealed that the dunes in this region are moving. Winds from the northeast (upper … Continue reading

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THEMIS: Dunes in Nili Patera

THEMIS Image of the Day, October 19, 2017. This is a false color image of part of the Nili Patera dune field. High resolution imaging by other spacecraft has revealed that the dunes in this region are moving. Winds are … Continue reading

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