Tag Archives: meanders

HiRISE: Sinuous ridge with a meander

Posted on May 22, 2017 by rburnham

Sinuous ridge with a meander east of Meridiani Planum. Beautiful Mars series.

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HiRISE: Martian meanders and scroll-bars

Posted on March 1, 2017 by rburnham

This is a portion of an inverted fluvial channel in the region of Aeolis / Zephyria Plana, at the Martian equator. Channels become inverted when the sediments filling them become more resistant to erosion than the surrounding material. Here, the … Continue reading →

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HiRISE: Meandering channel on Hellas’ rim

Posted on July 15, 2016 by rburnham

The central portion of this image features a mildly-winding depression that was carved by water, likely around four billion years ago shortly after the Hellas basin formed following a giant asteroid or comet impact. Water would have flowed from the … Continue reading →

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HiRISE image: sinuous ridges and meanders

Posted on January 30, 2014 by rburnham

These ridges are thought to be old river channels, but wind erosion has created inverted topography. What was low (the channel bottoms) was more resistant to erosion, so now it is relatively high. In a closeup image, we see a … Continue reading →

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