Tag Archives: troughs

HiRISE: Narrow troughs

Posted on August 23, 2019 by rburnham

Narrow troughs. What exactly are the nature of these thin, narrow troughs? They might may be part of a system of dikes that came from the same magma source that fed the whole area in Thaumasia Planum, just south of … Continue reading →

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HiRISE: Terraced trough near Ceraunius Fossae

Posted on July 11, 2019 by rburnham

A terraced trough near Ceraunius Fossae. This may be a source region of flow material that enclosed the adjacent raised ridges and continues on to the north. High resolution can help to determine if the terraced forms are due to … Continue reading →

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HiRISE: Troughs and ridges

Posted on June 28, 2019 by rburnham

Troughs and ridges. These wide troughs in Chryse Planitia have a narrow ridge running down the middle. How did these form? (North is to the right.) HiRISE Picture of the Day archive. [More at links]

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HiRISE: When lava moved

Posted on June 27, 2019 by rburnham

When lava moved. The objective of this observation is to examine the remains of an ancient lava flow moving in a trough in the Claritas Fossae region. Pictures like this may tell us more about how lava flowed on Mars. … Continue reading →

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HiRISE: Hephaestus Fossae pits

Posted on May 28, 2019 by rburnham

Hephaestus Fossae pits. The Hephaestus Fossae are a system of troughs and channels that are about 604 kilometers in length. The fossae have been tentatively identified as outflow channels, but their origin and evolution remain ambiguous. HiRISE Picture of the … Continue reading →

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HiRISE: Blocks and troughs

Posted on April 24, 2019 by rburnham

Blocks and troughs. This region in Margaritifer Chaos is located in a system of finger-like rifts and cracked surface stretching south from what appear to be three impact craters. The interaction/relation between these valleys and their neighboring craters could be … Continue reading →

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HiRISE: Layers in a collapse trough near Aromatum Chaos

Posted on August 9, 2018 by rburnham

Layers in a collapse trough near Aromatum Chaos. Aromatum Chaos is a large depression, possibly formed due to a catastrophic flood event. Beautiful Mars series. [More at links]

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HiRISE: Nilosyrtis Mensae

Posted on June 21, 2018 by rburnham

Let us now contemplate Nilosyrtis Mensae. There is a fault attached to a trough here; both have the same orientation. This image helps us to understand stress fields on Mars. Beautiful Mars series. [More at links]

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HiRISE: Troughs with axial ridges in Acidalia Planitia

Posted on April 9, 2018 by rburnham

Troughs with axial ridges in Acidalia Planitia. There are large, hundreds of meters in length, troughs in Acidalia Planitia, with high axial ridges down the center. While they appear fairly bland in Mars Orbital Camera images, we can see better … Continue reading →

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HiRISE: Troughs in Elysium Fossae

Posted on May 10, 2016 by rburnham

The two linear depressions in this image form part of the Elysium Fossae complex, a group of troughs located in the Elysium quadrangle of Mars. These troughs are tectonic features, likely formed by the stretching, tearing and subsequent collapse of … Continue reading →

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