Tag Archives: inverted topography

HiRISE: Branched ridges in NE Arabia Terra

Branched ridges in northeast Arabia Terra. Could these features be inverted stream channels and a depositional (alluvial) fan? Beautiful Mars series. [More at links]

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HiRISE: Ridges in Terra Sabaea crater

Ridges in Terra Sabaea. The objective of this observation is to determine the nature of ridges on a crater floor.  They may represent inverted terrain. Beautiful Mars series. [More at links]

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HiRISE: Fan with inverted channels

This image shows inverted channels within a fan whose origin could be either fluvial (produced by the action of a stream) or alluvial (created by sedimentary deposits). If the fan is alluvial, then it formed on dry land. If the … Continue reading

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HiRISE: Semi-sinuous ridge and stratified material in Arabia Terra

Semi-sinuous ridge and stratified material in Arabia Terra. Looks like inverted stream channels that contributed to a lake or pond, with stratified sedimentary rock units in the depression. Important imaging for understanding how to best distinguish cratered, erosion-resistant sedimentary rock … Continue reading

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HiRISE: Inverted channel on elevated terrain

An inverted channel on elevated terrain. Interesting fluvial processes that might help improve our understanding of the deposits in the Medusae Fossae Formation. Beautiful Mars series. [More at links]

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HiRISE: Within an inverted impact crater

Within an inverted impact crater in Vastitas Borealis. This particular crater is characterized by a central deposit of positive relief with a subdued rim as a result of sublimation in the surrounding territory. A comprehensive study of inverted impact craters … Continue reading

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HiRISE: Inverted channels

Inverted channels at the boundary of highlands and intercrater plains. This image targets inverted channels located at the boundary between Noachian highlands and Noachian intercrater plains bedrock. These channels are 200 to 500 meters wide, implying substantial fluvial activity. High-resolution … Continue reading

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HiRISE: Inverted and altered light-toned terrain in Sirenum Fossae

Inverted and altered light-toned terrain in Sirenum Fossae. Beautiful Mars series.

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HiRISE: Big fans

Alluvial fans are fan-shaped deposits emerging from regions of steep topography. Alluvial fans on Mars are thought to be ancient and record past episodes of flowing water. This image shows part of one of those fans, which has been eroded. … Continue reading

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HiRISE: Inverted crater west of Mawrth Vallis

This image captures details of an approximately 1-kilometer inverted crater west of Mawrth Vallis. A Context Camera image provides context for the erosional features observed at this site. The location of this HiRISE image is north of the proposed landing … Continue reading

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