Tag Archives: yardangs

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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HiRISE: Yardangs – nature’s weathervanes

The prominent tear-shaped features in this image are erosional features called yardangs. Yardangs are composed of sand grains that have clumped together and have become more resistant to erosion than their surrounding materials. As the winds of Mars blow and … Continue reading

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THEMIS: Rough-textured ridge in Melas Chasma

THEMIS Image of the Day, November 29, 2017. This VIS image shows part of a large ridge of material near the south central part the canyon. The roughest looking material is the top of the ridge. Wind may also have … Continue reading

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HiRISE: Dark sediments in the Medusae Fossae Formation

Dark sediments in the Medusae Fossae Formation. Beautiful Mars series.

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THEMIS: Yardangs in Memnonia Sulci

THEMIS Image of the Day, January 9, 2017. Today’s VIS image shows some of the extensive wind etched terrain in Memnonia Sulci, located south west of Olympus Mons. The linear ridges are called yardangs and form by wind removal of … Continue reading

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HiRISE: Yardangs south of Olympus Mons

Yardangs south of Olympus Mons. Beautiful Mars series.

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THEMIS: Yardangs in Memnonia Sulci

THEMIS Image of the Day, October 24, 2016. The elongated hills in this VIS image are a feature termed yardangs. Yardangs are formed by wind activity in regions where the surface material is soft and not well cemented. The elongation … Continue reading

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HiRISE: Wind carved rock

The distinctively fluted surface and elongated hills in this image in Medusae Fossae are caused by wind erosion of a soft fine-grained rock. Called yardangs, these features are aligned with the prevailing wind direction. This wind direction would have dominated … Continue reading

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THEMIS: Wind leaves its clawmarks

THEMIS Image of the Day, August 17, 2016. Today’s VIS image is located in Aeolis Mensae, east of Gale Crater. The linear ridge/valley system near the center of the image was formed by unidirectional winds eroding poorly cemented material. This … Continue reading

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THEMIS: Wind etching

THEMIS Image of the Day, August 9, 2016. Today’s VIS image is located in a region that has been heavily modified by wind action. The narrow ridge/valley system seen in this image are a feature called yardangs. Yardangs form when … Continue reading

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