Tag Archives: THEMIS

THEMIS: Yardangs in Candor Chasma

THEMIS Image of the Day, January 12, 2018. This image shows part of eastern Candor Chasma. In the middle of the image is a set of linear ridges and valleys. These features are called yardangs and are created by uniform … Continue reading

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THEMIS: Canyon walls in Candor Chasma

THEMIS Image of the Day, January 11, 2018. This image shows part of eastern Candor Chasma. At the top of the image is the steep cliff between the upper surface elevation and the depths of Candor Chasma. The bottom of … Continue reading

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THEMIS: Landslides in Candor Chasma

THEMIS Image of the Day, January 10, 2018. This image shows part of eastern Candor Chasma. At the bottom of the image is the steep cliff between the upper surface elevation and the depths of Candor Chasma. The small lobate … Continue reading

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THEMIS: Mesa and dunes in Candor Chasma

THEMIS Image of the Day, January 9, 2018.  This image shows part of western Candor and the erosion of a large mesa. Layered materials are visible throughout the image. The dark material with the linear appearance in the middle of … Continue reading

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THEMIS: Chaotic deposits in Candor Chasma

THEMIS Image of the Day, January 8, 2018. Candor Chasma is one of the largest canyons that make up Valles Marineris. It is approximately 810 km long (503 miles) and has is divided into two regions – eastern and western … Continue reading

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THEMIS: Volcanic vent in Arsia Mons caldera

THEMIS Image of the Day, January 5, 2018. This THEMIS image shows part of the southern margin of the summit caldera. This image contains a variety of features representing the major events related to the formation of the volcano. At … Continue reading

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THEMIS: Chains of pit craters near summit of Arsia Mons volcano

THEMIS Image of the Day, January 4, 2018. The three large aligned Tharsis volcanoes are Arsia Mons, Pavonis Mons and Ascraeus Mons (from south to north). There are collapse features on all three volcanoes, on the southwestern and northeastern flanks. … Continue reading

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THEMIS: Pits at caldera’s edge

THEMIS Image of the Day, January 3, 2018. This THEMIS image shows part of the caldera floor of Arsia Mons. It is not uncommon for calderas to have “flat” floors after the final explosive eruption the empties the subsurface magma … Continue reading

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THEMIS: Flows on the caldera floor of Arsia Mons

THEMIS Image of the Day, January 2, 2018. This THEMIS image shows part of the caldera floor of Arsia Mons. It is not uncommon for calderas to have “flat” floors after the final explosive eruption the empties the subsurface magma … Continue reading

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THEMIS: Arsia Mons’ collapse pits

THEMIS Image of the Day, January 1, 2018. This VIS image shows part of the northeastern flank of Arsia Mons at the summit caldera. In this region the summit caldera does not have a steep margin most likely due to … Continue reading

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