Journal
GEOPHYSICAL RESEARCH LETTERS
Volume 49, Issue 17, Pages -Publisher
AMER GEOPHYSICAL UNION
DOI: 10.1029/2022GL098975
Keywords
lunar tectonics; Wrinkle ridges; tidal stresses; tectonics
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Funding
- NASA Lunar Data Analysis Program (LDAP) [NNX17AI80G]
- Johns Hopkins University Applied Physics Laboratory through the NASA LRO mission
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The article demonstrates the diverse tectonic features on the Moon, which are crucial for understanding the evolutionary history of the lunar lithosphere.
The variety of tectonic features on the Moon indicates that the lunar lithosphere has undergone a complex deformational history. Lobate scarps and wrinkle ridges are two such tectonic features that have resulted from compressional stresses. The crisp morphologies and cross cutting relations associated with a global population of lobate scarps have been cited as evidence for their recent (<1.0 Ga) formation, but observations of recently active wrinkle ridges have not been made on a similar scale. Here, we present new observations of 1,116 recently active (similar to 0.056-1.5 Ga) wrinkle ridge segments on the lunar maria. Our results indicate that clusters of recently active wrinkle ridges are distributed across similar to 90% of nearside mare basins. Spatial correlations were noted between wrinkle ridge orientations with predicted stress fields from both orbital recession and global contraction as well as ongoing reactivation of a residual set of structures associated with the South Pole-Aitken basin.
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