Tag Archives: volcanics

Explosive volcanism likely made olivine-rich deposit near 2020 rover landing site

Ashfall from ancient volcanic explosions is the likely source of a strange mineral deposit near the landing site for NASA’s next Mars rover, a new study finds. The research, published in the journal Geology, could help scientists assemble a timeline … Continue reading

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HiRISE: Resistant lava and erosion

This image demonstrates the curious phenomenon called “topographic inversion.” The southern half of the picture is covered by a well-preserved lava flow. The flow stops just at the brink of descending a steep slope. Lava isn’t afraid of falling, so … Continue reading

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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: Angustus Labyrinthus, the ‘Inca City’

THEMIS Image of the Day, May 1, 2019. Angustus Labyrinthus is a unique region near the south polar cap. The squares formed by intersecting ridges earned the feature the informal name of the Inca City when it was discovered in … Continue reading

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THEMIS: Syrtis Major Planum in false color

THEMIS Image of the Day, April 5, 2019. This false-color VIS image is located in the center of Syrtis Major Planum. At the top of the image is Nili Patera, a volcanic summit. The sand dunes located near Nili Patera … Continue reading

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HiRISE: A ridge on the plains

A ridge on the plains. This ridge on rocky plains is located not to far from Daedalia Planum, a featureless plain with multiple lava flows and small craters. HiRISE Picture of the Day archive [More at links]

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THEMIS: Elysium Planitia in false color

THEMIS Image of the Day, March 26, 2019. Today’s false-color VIS image is located in Elysium Planitia. The linear depressions at the top of the image are created by tectonic faults, where the center block of material has dropped downward … Continue reading

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THEMIS: Tapestry in rock — Daedalia Planum

THEMIS Image of the Day, March 22, 2019. This VIS image shows a small portion of Daedalia Planum. The lava flows in this image originated at Arsia Mons. Individual flows have lengths up to almost 180 km (~111 miles). The … Continue reading

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THEMIS: Daedalia Planum lava flows

THEMIS Image of the Day, March 12, 2019. Today’s VIS image shows a small part of Daedalia Planum.(Note that sunlight in this image is coming from the right.) The lava flows originate from Arsia Mons, one of the large volcanoes … Continue reading

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HiRISE: A margin of lava

A margin of lava. This lava margin in Cerberus Palus is part of the Athabasca Valles flow. There are also lava coils in this region, something we did not know existed on Mars until HiRISE took an image. The lava … Continue reading

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