Tag Archives: lava flows

THEMIS: High-volume lava tube, Pavonis Mons

THEMIS Image of the Day, November 9, 2017. This image shows the southern flank of Pavonis Mons. The large sinuous channel at the bottom of the image is located at the uppermost part of the volcano where collapse features are … Continue reading

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THEMIS: Lava tube takes a sharp turn

THEMIS Image of the Day, November 6, 2017. This image shows part of the eastern flank of Pavonis Mons. Surface lava flows run down hill from the upper left of the image towards the bottom right. Perpendicular to that trend … Continue reading

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THEMIS: Collapsed lava tubes on Pavonis Mons

THEMIS Image of the Day, November 3, 2017. This image shows part of the southeastern flank of Pavonis Mons. Surface lava flows run down hill from the top left of the image to the bottom right. Perpendicular to that trend … Continue reading

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THEMIS: Collapse pits and lava tubes

THEMIS Image of the Day, November 1, 2017. This image shows part of the southern flank of Pavonis Mons. Several faults run from the left to the right side of the image. Lava flows, and the lava collapse features at … Continue reading

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THEMIS: Fractures on Pavonis Mons’ flank

THEMIS Image of the Day, October 31, 2017. This image shows part of the western flank of Pavonis Mons. The linear features are faults. Faulting usually includes change of elevation, where blocks of material slide down the fault. Paired faults … Continue reading

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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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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: Collapse features on flank of Ascraeus Mons

THEMIS Image of the Day, September 5, 2017. This image shows part of the northeastern flank of Ascraeus Mons, along the trend that joins the three large Tharsis volcanoes. The image has a myriad of collapse features from circular to … Continue reading

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THEMIS: Pit craters on Ascraeus Mons

THEMIS Image of the Day, September 4, 2017. This image shows a collapse feature on the southeastern flank of the volcano. The circular/scalloped margin of the collapse is typical for ceiling collapse into a lava tube. However, the potential lava … Continue reading

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THEMIS: Collapsed lava channel on Ascraeus Mons

THEMIS Image of the Day, September 1, 2017. This image shows part of the southern flank of Ascraeus Mons. The feature at the bottom of the image is a collapse feature. These features can be caused by several processes. The … Continue reading

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