Tag Archives: Terra Cimmeria

THEMIS: High-latitude dune field

THEMIS Image of the Day, February 14, 2019. Today’s VIS image shows a dune field on a crater floor in Terra Cimmeria. Dunes at high latitudes – near the polar caps – are affected by seasonal frost and ice. The … Continue reading

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THEMIS: Dunes and dust devil tracks in Terra Cimmeria

THEMIS Image of the Day, January 30, 2019. This unnamed crater in Terra Cimmeria has both a sand sheet with dune forms and a multitude of dust devil tracks. The linear and scalloped dark marks are created by dust devils … Continue reading

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HiRISE: Cross-section of a complex crater

This image shows a cross-section of a complex crater in Terra Cimmeria. Starting in the center, we see a series of peaks with exposed bedrock. These peaks formed during the impact event when material that was originally several kilometers below … Continue reading

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HiRISE: Multi-elevation gullies

Gullies probably formed along the bouldery layers in the upper slopes of this unnamed crater within the last few million years. Gullies eroded these crater slopes and transported sediment downslope forming debris aprons multiple times. These older apron surfaces were … Continue reading

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Highland landscapes point to long evolution by low-intensity intermittent erosion

[Editor’s note: From a paper by Jon Cawley and Ross Irwin recently published in the Journal of Geophysical Research.] Evolution of Escarpments, Pediments, and Plains in the Noachian Highlands of Mars • Debris-mantled escarpments, regolith pediments, sloping aggradational surfaces, and … Continue reading

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HiRISE: Eastern rim of a Terra Cimmeria crater

Eastern rim of a crater in Terra Cimmeria. Beautiful Mars series. [More at links]

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Evolution of Noachian highlands landscapes

[Editor’s note: From a paper by Jon Cawley and Ross Irwin recently published in the Journal of Geophysical Research.] Evolution of Escarpments, Pediments, and Plains in the Noachian Highlands of Mars • Debris‐mantled escarpments, regolith pediments, sloping aggradational surfaces, and … Continue reading

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THEMIS: Field of hills in Terra Cimmeria

THEMIS Image of the Day, November 21, 2018. This image is located in Terra Cimmeria. The bright, irregular features are hills. This part of Terra Cimmeria is made up mostly by flat lying plains, with no other hills in the … Continue reading

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THEMIS: Gullies etch a crater rim in Terra Cimmeria

THEMIS Image of the Day, November 16, 2018. Multiple gullies dissect the rim of this unnamed crater in Terra Cimmeria. The soft-looking material at the foot of the rim (where it meets the crater floor) may contain buried ice. See … Continue reading

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THEMIS: False-color slice across Terra Cimmeria crater

THEMIS Image of the Day, October 24, 2018. This false-color VIS image shows part of a large unnamed crater in Terra Cimmeria. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways … Continue reading

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