Tag Archives: Sirenum Fossae

THEMIS: Sirenum Fossae

THEMIS Image of the Day, July 3, 2015. The linear features in this VIS image are faults. Where depressions are formed bounded by faulting the feature is called a graben. These faults and graben are part of a large region … Continue reading

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HiRISE: Fresh crater near Sirenum Fossae

This impact crater appears relatively recent as it has a sharp rim and well-preserved ejecta. The steep inner slopes are carved by gullies and include possible recurring slope lineae on the equator-facing slopes. Fresh craters often have steep, active slopes, … Continue reading

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THEMIS: Sirenum Fossae

THEMIS Image of the Day, May 28, 2015. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. These false color images may reveal subtle variations … Continue reading

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THEMIS: More Sirenum Fossae

THEMIS Image of the Day, May 1, 2015. The subtle paired fractues at the bottom of this VIS image are part of Sirenum Fossae, though it is hundreds of km away from yesterday’s image location. Numerous gullies at the top … Continue reading

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THEMIS: Sirenum Fossae

THEMIS Image of the Day, April 30, 2015. Today’s VIS image shows several linear depressions that cross an unnamed crater. The depressions are tectonic fractures that are hundreds of km long. More THEMIS Images of the Day by geological topic.

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THEMIS: Sirenum Fossae

THEMIS Image of the Day, November 21, 2014. The linear features in this VIS image are graben (fault bounded depressions). The graben are part of Sirenum Fossae. More THEMIS Images of the Day by geological topic.

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THEMIS: Sirenum Fossae

THEMIS Image of the Day, October 27, 2014. Today’s VIS image shows a graben cutting through a plateau. The graben is part of Sirenum Fossae. More THEMIS Images of the Day by geological topic.

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THEMIS: Sirenum Fossae

THEMIS Image of the Day, October 21, 2014. The linear depression in the center of this VIS image is a graben — a fault-bounded block of material. The graben crosses the crater and ejecta in the middle of the image, … Continue reading

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