Conical landforms on Mercury and Mars -indicators of volatile release

• Main Authors: Conway, Susan, Wright, Jack, Morino, Costanza
• Other Authors: Laboratoire de Planétologie et Géodynamique UMR 6112 (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Environnements, Dynamiques et Territoires de la Montagne (EDYTEM), Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS), ANR-19-CE01-0010,Permolards,Les molards, marqueurs de l'évolution de la dégradation du pergélisol de montagne(2019)
• Format: Conference Object
• Language: English
• Published: HAL CCSD 2019
• Subjects: [SDU.STU.PL]Sciences of the Universe [physics]/Earth Sciences/Planetology; [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology; Ice; permafrost
• Online Access: https://hal.archives-ouvertes.fr/hal-03091528; https://hal.archives-ouvertes.fr/hal-03091528/document; https://hal.archives-ouvertes.fr/hal-03091528/file/EPSC-DPS2019-1827-2.pdf

International audience Molards are cones of debris that result from the disaggregation of ice-cemented blocks transported by mass movements. Recently, the origin of molards has been directly linked to permafrost degradation on Earth. We have found candidate molards in crater ejecta on Mercury and Mars, which by analogy we link to volatile loss post-emplacement.