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Data from other instruments, such as THEMIS and CRISM, imply that chlorides are present here; the CRISM data reveal that iron/magnesium clays are also present.

Our goal is to compare textures and determine stratigraphy for these two materials. Enhanced color very useful for mapping units of distinct composition.


Image: NASA/JPL/University of Arizona https://www.uahirise.org/hipod/ESP_016162_1495
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Terra Sabaea

Possible Impact Melt in Terra Sabaea

Nighttime and daytime infrared images from THEMIS suggest a consolidated deposit in the floor of this ancient crater in Terra Sabaea, potentially with some bedrock exposure.

Layers in Meridiani Planum

Also visible in a Context Camera image, our high resolution picture shows layers exposed where the crater ejecta has been eroded.

A Scarp in the Arabia Region

Pictured here appears to be the edge of a blast radius of a large meteorite impact crater with smaller and more recent cratering interrupting its circumference.