The deep canyon walls of Valles Marineris might expose ancient crustal materials. Blocks of bedrock with diverse colors are visible in the enhanced-color cutout. These large, jumbled blocks might have resulted from heavy bombardment by asteroids about 3.9 billion years ago.

ID: ESP_080616_1640
date: 7 October 2023
altitude: 262 km

https://uahirise.org/hipod/ESP_080616_1640
NASA/JPL-Caltech/University of Arizona
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