Tag Archives: ejecta

HiRISE: Tooting Crater ejecta

Posted on June 10, 2019 by rburnham

In this picture we can see a huge tongue-like form, which looks a like a mudflow with boulders on its surface. This “tongue” is only a small part of a larger deposit that completely surrounds Tooting Crater (not visible in … Continue reading →

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HiRISE: Holden Crater impact ejecta

Posted on March 22, 2019 by rburnham

Holden Crater impact ejecta. Because Holden is such a massive crater (about 140-km in diameter), its ejecta certainly covers a wide area. This image focuses on a small portion of it, where we can see some diverse compositions. HiRISE Picture … Continue reading →

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THEMIS: Big impacts and little in Terra Cimmeria

Posted on March 13, 2019 by rburnham

THEMIS Image of the Day, March 13, 2019. This VIS image contains three craters. There is a quarter of the largest crater in the top half of the image, half of a smaller crater at the very top, and the … Continue reading →

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HiRISE: Colorful impact ejecta in Ladon Valles

Posted on March 6, 2019 by rburnham

This image covers the western portion of a well-preserved (recent) impact crater in Ladon Basin. Ladon is filled by diverse materials including chemically-altered sediments and unaltered lava, so the impact event ejected and deposited a wide range of elements. This … Continue reading →

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HiRISE: Ejecta margin near Ares Vallis

Posted on January 7, 2019 by rburnham

Ejecta margin near Ares Vallis. The objective of this observation is to examine the margin of a crater’s ejecta. The ejecta on this side looks different than on the opposite side. Ares Vallis is an outflow channel, likely carved by … Continue reading →

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HiRISE: Weathered ejecta and pitted material associated with Kontum Crater

Posted on May 8, 2018 by rburnham

Weathered ejecta and pitted material associated with Kontum Crater. Weathered, eroded, and scoured ejecta of Kontum Crater could expose ponded, pitted, and underlying material, as well as interesting contrasts. This image is right outside Kontum Crater on the eastern side. … Continue reading →

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HiRISE: Mars and the amazing Technicolor ejecta blanket

Posted on July 13, 2017 by rburnham

A close-up image shows the exposed bedrock of an ejecta blanket of an unnamed crater in the Mare Serpentis region of Mars. Ejecta, when exposed, are truly an eye-opening feature, as they reveal the sometimes exotic subsurface, and materials created … Continue reading →

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HiRISE: Mojave Crater far-flung impact ejecta

Posted on June 27, 2017 by rburnham

Distal reaches of Mojave Crater impact ejecta. Beautiful Mars series.

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Impact-heated rock led to relatively recent water-carved valleys on Mars

Posted on June 13, 2017 by rburnham

New research shows that water from melted snow and ice likely carved valley networks around Lyot crater on Mars. Present-day Mars is a frozen desert, colder and more arid than Antarctica, and scientists are fairly sure it’s been that way … Continue reading →

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HiRISE: Sandlot

Posted on June 9, 2017 by rburnham

Sandlot. Beautiful Mars series.

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