Figure 5 | Scientific Reports

Figure 5

From: The Chaotic Terrains of Mercury Reveal a History of Planetary Volatile Retention and Loss in the Innermost Solar System

Figure 5

(A) Map of the largest groove systems in the chaotic terrain antipodal to the Caloris basin. The structures have prevailing NW and NE trends. (B) Close-up view on one of the grooves, which has a width of ~20 km. Note that the groove’s relief is due to collapse. (C) Zoom in showing a chaotic terrain area that includes the remnants of smaller and more closely spaced grooves (yellow and red arrows, respectively, identify dominant NE and NW trends). The bottom-center yellow arrow is aligned to the head of a large groove. Numbers 1–3 indicate the locations of relatively small craters (~20 km in diameter) that underwent collapse. All panels are parts of a MESSENGER Mercury global DEM (~665 m/px; credits to46,47,48,49) draped over MESSENGER Mercury Dual Imaging System (MDIS) global base map (~166 m/px; credits to47,49,50).

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