Tag Archives: bedrock

HiRISE: Bedrock riddles of Nili Fossae

Posted on September 4, 2019 by rburnham

This image of the Nili Fossae region, to the west of the great Isidis basin, shows layered bedrock with many impact craters. Nili Fossae is one of the most mineralogically important sites on Mars. Remote observations by the infrared spectrometer … Continue reading →

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HiRISE: Wonderful world of Arabia Terra

Posted on August 22, 2019 by rburnham

The wonderful world of Arabia Terra. It’s one of our favorite regions, not the least because of the incredible layered sedimentary rock but also for the composition of the bedrock. Arabia Terra might be one of the oldest regions on … Continue reading →

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HiRISE: Pits on a crater floor

Posted on August 20, 2019 by rburnham

Pits on a crater floor. These pits are also showing some great exposure of bedrock on the floor of this massive, ancient crater, located northwest of the Hellas impact basin. HiRISE Picture of the Day archive. [More at links]

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HiRISE: Bedrock on the floor of Kaiser Crater

Posted on April 19, 2019 by rburnham

HiRISE has often imaged inside Kaiser Crater to monitor active sand dunes and gullies. Surrounding these dunes, we often find clean bedrock exposures, because the actively moving sand clears off the dust. Kaiser Crater is 207 kilometers wide and was … Continue reading →

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HiRISE: Abstract art in Ius Chasma

Posted on April 18, 2019 by rburnham

Sometimes Mars’ surface is just beautiful as seen through the eyes of HiRISE. This is one example on the floor of Ius Chasma, part of Valles Marineris. The region has had a complex history of sediment deposition, deformation, erosion, and … Continue reading →

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HiRISE: Rocky layers on the floor of Fournier Crater

Posted on April 9, 2019 by rburnham

Rocky layers on the floor of Fournier Crater. A nice, classic bowl-shaped crater with bright bedrock exposures on one of its walls. This is located within Fournier Crater, which is 118 kilometers in diameter. HiRISE Picture of the Day archive. … Continue reading →

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HiRISE: Layered bedrock to the northwest of Hellas Planitia

Posted on March 26, 2019 by rburnham

Layered bedrock to the northwest of Hellas Planitia. There are some very nice geologic contacts in this region. HiRISE Picture of the Day archive [More at links]

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HiRISE: Bedrock in the central peaks of Hale Crater

Posted on March 22, 2019 by rburnham

This long image is entirely over the extensive central peak complex of Hale Crater. Of particular interest are bedrock outcrops and associated fine-grained sediments with different colors. This 153-kilometer diameter crater was named after American astronomer George Ellery Hale. [More … Continue reading →

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HiRISE: In the gullies and bedrock of Ius Chasma

Posted on March 20, 2019 by rburnham

This image was acquired in Ius Chasma, a major section of the western portion of the giant Valles Marineris trough. We see a portion of a steep slope with gullies extending downhill (towards bottom of image). Many of the gully … Continue reading →

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HiRISE: Living on the edge

Posted on March 1, 2019 by rburnham

Living on the edge. The rim of this crater looks fairly sharp, meaning it hasn’t degraded too much even though it is likely very old. The exposed, light-toned bedrock is a bonus. HiRISE Picture of the Day archive [More at … Continue reading →

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