Tag Archives: layered deposits

HiRISE: The sand always gets through

The sand always gets through. There are also eroded layers here in Orson Welles Crater. Beautiful Mars series. [More at links]

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HiRISE: Uplifted blocks of light-toned layered deposits

Aram Chaos lies within a 280 kilometer-diameter ancient impact crater in the Southern Highlands of Mars. Uplifted blocks of light-toned layers, composed largely of the iron-oxide hematite and water-altered silicates, indicate that this crater once held a lake. Scientists suggest … Continue reading

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HiRISE: Cliffs and stratified features in central Arabia Terra

Cliffs and stratified features in central Arabia Terra. Sedimentary rock? Layered materials looked as if mantled by dust. The goal of this observation is to capture some of the variety of erosional expressions  and stratigraphy. Beautiful Mars series. [More at … Continue reading

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HiRISE: Korolev Crater layers

Korolev Crater layers. With HiRISE resolution, paleoclimate analysis can be done to determine the possible climate record held within ice mounds, like those here. Beautiful Mars series. [More at links]

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HiRISE: Layers to behold

Layers to behold. A scarp and more on layered deposits in Ceti Mensa. Beautiful Mars series. [More at links]

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THEMIS: Hebes Mensa

THEMIS Image of the Day, June 13, 2018. Located in the center of Hebes Chasma is a large deposit of layered material called Hebes Mensa. Extensive erosion has created gullies in the mensa and distributed fine sand size materials to … Continue reading

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HiRISE: Exploring Meridiani Planum

The Opportunity rover has spent 13 years exploring a small region of Meridiani Planum which has a rather ordinary appearance. Other portions of Meridiani are much more interesting, with well-exposed layered bedrock eroded into strange patterns. [More at link]

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HiRISE: Curved ridge and layered materials

Curved ridge and layered materials. Is the curved ridge a remnant of inverted stream channel sediment, crater ejecta, or something else (e.g., tectonic)? Are the layered materials sedimentary rock? Beautiful Mars series.

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HiRISE: Meridiani crater’s fractured floor

It’s not only hearts that can break. This image shows the fractured floor of a large, ancient impact crater, located in Meridiani Planum, in the Northern hemisphere of Mars. Beautiful Mars series.

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HiRISE: A layered mound in Juventae Chasma

Many of the chasmata (the plural of “chasma”) in Valles Marineris contain light-toned mounds that are distinct from the darker rocks that define the walls. The light-toned mounds, like this one in Juventae Chasma, generally contain sulfates, which are salts … Continue reading

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