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. 2020 Dec 2;6(49):eabb1669. doi: 10.1126/sciadv.abb1669

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Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).

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Fig. 3 — (A) Crustal heat flow based on GRS chemical maps (fig. S2) and crustal thickness map of Mars (fig. S3) during the Noachian. (B and C) Surface heat flow arising from the combined crustal (A) and laterally constant mantle (denoted as q_m) contributions. An H mask has been applied to exclude areas with high H content.