Tag Archives: rootless cones

HiRISE: Pitted cones

Pitted cones. The objective of this observation is to examine if these cones are deformed along this ridge in Acidialia Planitia. HiRISE Picture of the Day archive. [More at links]

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THEMIS: Wind streaks on northern plains

THEMIS Image of the Day, April 12, 2019. Today’s false-color VIS image is located in the plains between Chryse and Acidalia Planitias. Dark blue tones in this false color combination are usually created by basaltic sands. There appears to be … Continue reading

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THEMIS: Isolated hills on Arcadia Planitia

THEMIS Image of the Day, October 23, 2018. This false-color VIS image shows some of the plains of Arcadia Planitia in the northern lowlands. Isolated small hills are a common feature in this part of the planitia. Hills like these … Continue reading

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HiRISE: Pitted cones: possible methane sources?

This observation shows relatively bright mounds scattered throughout darker and diverse surfaces in Chryse Planitia. These mounds are hundreds of meters in size. The largest of the mounds shows a central pit, similar to the collapsed craters found at the … Continue reading

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HiRISE: Volcanic landforms in SE Elysium Planitia

Various volcanic landforms in southeast Elysium Planitia. The second image [above] is at full resolution, less than 1 km across, both are 279 km above the surface. Beautiful Mars series.

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HiRISE: Cones in Utopia Rupes

Cones in Utopia Rupes. Beautiful Mars series.

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HiRISE: In a land of rootless cones

In a land of rootless cones — Flood lava and rootless cones in Cerberus Palus. A rootless cone is a formation that resembles a volcanic crater, but differs in that it is not an actual vent from which lava has erupted, … Continue reading

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HiRISE: Lost in coneland

Lost in coneland. The formation of these cones may have something to do with the ejecta heating the ground and turning ice into steam. Beautiful Mars series.

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HiRISE: Field of cones

Beautiful Mars series. Field of cones in Utopia Planitia. More Beautiful Mars images.

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HiRISE: Ring of cratered cones

In the center of this observation, we see a ring of cones that have developed over a crater rim. Lava appears to have deflated around and within the ring. Interestingly, the area around the ring has few cones: did water … Continue reading

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