Tag Archives: volcanics

Mars minerology points to cold, icy ancient climate

The climate throughout Mars’ early history has long been debated – was the Red Planet warm and wet, or cold and icy? New research published in Icarus provides evidence for the latter. Mars is littered with valley networks, deltas and … Continue reading

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THEMIS: Rough lava flows on Daedalia Planum

THEMIS image of the Day, June 6, 2018. Today’s VIS image shows a small portion of the lava flows that comprise Daedalia Planum. The flows originated at Arsia Mons, the youngest of the three Tharsis volcanoes. The Tharsis volcanoes are … Continue reading

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HiRISE: Pits galore near Kasei Valles

Pits galore near Kasei Valles. These are located near the edge of a lava outflow region, for which there is evidence of subsurface tube flows. Beautiful Mars series. [More at links]

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THEMIS: Twisting channels in Hebrus Valles

THEMIS Image of the Day, May 23, 2018. Located west of the Elysium Volcanic complex, Hebrus Valles is a complex channel system that flowed to the north. In this VIS image the channel features have the appearance of a channel … Continue reading

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THEMIS: Cerberus Fossae, source of floods

THEMIS Image of the Day, May 22, 2018. Today’s VIS image shows a section of Cerberus Fossae. Located southeast of the Elysium Planitia volcanic complex, the linear graben was created by tectonic forces related to the volcanic activity. The fossa … Continue reading

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THEMIS: Lava flows chopped by graben in Olympica Fossae

THEMIS Image of the Day, May 21, 2018. The linear channel in the bottom half of this VIS image is part of Olympica Fossae. Olympica Fossae is a complex channel form located on the Tharsis plains between Alba Mons and … Continue reading

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HiRISE: All that the lava leaves behind

All that the lava leaves behind. There are streamlined and eroded forms in this lava channel, a region with very little HiRISE coverage. Beautiful Mars series. [More at links]

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HiRISE: Athabasca Valles lava

Athabasca Valles lava. It’s quite the jumbled mess down here. The northern toe of this mesa appears to contact and possibly overlie a rift in the lava crust, giving the impression that the mesa is younger. Beautiful Mars series. [More at … Continue reading

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THEMIS: Daedalia Planum’s engulfing lava flows

THEMIS Image of the Day, May 2, 2018. At the bottom of this VIS image of Daedalia Planum is the the uppermost rim of an impact crater. The unnamed crater has been almost completely filled by lava flows originating from … Continue reading

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HiRISE: Contact between an older shield volcano and younger flows

Contact between an older shield volcano and younger flows. Interested in the geologic contact here between the older shield volcano and the younger flows that enclose it. Beautiful Mars series. [More at links]

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