Planetary Caves: A Solar System View of Processes and Products

J. Judson Wynne*, John E. Mylroie, Timothy N. Titus, Michael J. Malaska, Debra L. Buczkowski, Peter B. Buhler, Paul K. Byrne, Glen E. Cushing, Ashley Gerard Davies, Amos Frumkin, Candice Hansen-Koharcheck, Victoria Hiatt, Jason D. Hofgartner, Trudi Hoogenboom, Ulyana Horodyskyj, Kynan Hughson, Laura Kerber, Margaret Landis, Erin J. Leonard, Elodie LesageAlice Lucchetti, Matteo Massironi, Karl L. Mitchell, Luca Penasa, Cynthia B. Phillips, Riccardo Pozzobon, Jani Radebaugh, Francesco Sauro, Robert V. Wagner, Thomas R. Watters

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

16 Scopus citations

Abstract

We provide the first solar system wide compendium of speleogenic processes and products. An examination of 15 solar system bodies revealed that six cave-forming processes occur beyond Earth including volcanic (cryo and magmatic), fracturing (tectonic and impact melt), dissolution, sublimation, suffusion, and landslides. Although no caves (i.e., confirmed entrances with associated linear passages) have been confirmed, 3,545 SAPs (subsurface access points) have been identified on 11 planetary bodies and the potential for speleogenic processes (and thus SAPs) was observed on an additional four planetary bodies. The bulk of our knowledge on extraterrestrial SAPs is based on global databases for the Moon and Mars, which are bodies for which high-resolution imagery and other data are available. To further characterize most of the features beyond the Moon and Mars, acquisition (preferably global coverage) and subsequent analysis of high-resolution imagery will be required. The next few decades hold considerable promise for further identifying and characterizing caves across the solar system.

Original languageEnglish
Article numbere2022JE007303
JournalJournal of Geophysical Research: Planets
Volume127
Issue number11
DOIs
StatePublished - Nov 2022

Bibliographical note

Publisher Copyright:
© 2022 The Authors.

Keywords

  • planetary caves
  • speleogenesis
  • subsurface access points

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