Tag Archives: mafic minerals

HiRISE: Massif beauty

Posted on July 19, 2019 by rburnham

Massif beauty. We have two simple objectives with this image: to fill in gaps of coverage of this area in Coprates Chasma and to look for colorful slopes of mafic materials. (“Mafic” refers to a silicate mineral or igneous rock … Continue reading →

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CRISM: Olivine and pyroxene in ejecta from northern plains crater

Posted on June 14, 2019 by rburnham

CRISM scene HRL00003BEE covers an area in close proximity to a crater in the northern plains of Mars. In this image, we see strong Fe-rich olivine (yellow) and high calcium pyroxene (HCP, blue) signatures in the ejecta near the crater … Continue reading →

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HiRISE: Bedrock north of Terby Crater

Posted on July 1, 2016 by rburnham

This image samples the excellent bedrock exposures north of Terby Crater, which lies on the northern rim of the giant Hellas basin. An enhanced-color cutout shows a sample of this bedrock, which has a variety of colors and textures. The … Continue reading →

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CRISM: Mafic minerals in Nili Fossae

Posted on June 27, 2014 by rburnham

The vast majority of the planet’s crust is unaltered igneous rock although there are some occurrences of aqueously altered rocks linked to past water activity. The colors here show concentrations of different minerals common in rocks that might tell us … Continue reading →

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CRISM image: Mafic minerals in western Arabia Terra

Posted on February 28, 2014 by rburnham

The Arabia Terra region of Mars is an ancient, very heavily cratered region about 5,100 kilometers (3,170 miles) across, roughly the length of the United States! Arabia contains some of the oldest rocks on Mars. It is one of two … Continue reading →

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