Our goal is to compare textures and determine stratigraphy for these two materials. Enhanced color very useful for mapping units of distinct composition.
Dark
Light
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.
Image: NASA/JPL/University of Arizona https://www.uahirise.org/hipod/ESP_016162_1495
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