Tag Archives: fluvial erosion

THEMIS: Branching channels of Arda Valles

THEMIS Image of the Day, December 29, 2016. Today’s false color image shows some of the many channels that make up Arda Valles. Their shape and meandering courses suggest that they were eroded by flowing streams or rivers. The THEMIS … Continue reading

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Karun Valles & its braided alluvial fan

Planetary Geomorphology Image of the Month, September 29, 2016: Solmaz Adeli (DLR, Institute of Planetary Research, Berlin). The Amazonian period on Mars, meaning roughly the last 3 Ga, is globally believed to have been cold and hyperarid [e.g., Marchant and … Continue reading

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Mars had lakes & streams long after early wet era

Lakes and snowmelt-fed streams on Mars formed much later than previously thought possible, according to new findings using data primarily from NASA’s Mars Reconnaissance Orbiter. The recently discovered lakes and streams appeared roughly a billion years after a well-documented, earlier … Continue reading

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THEMIS: Ares Vallis

THEMIS Image of the Day, May 10, 2016. This VIS image shows part of the complex channel floor of Ares Vallis. More THEMIS Images of the Day by geological topic.

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