Evolutionary History of the Large-Scale Scarp in Jules Verne Crater, Moon

Abstract

We conducted a detailed study using multi-source data to date the mare activity and lobate scarp formation within the Jules Verne crater on the Moon. In previous studies, the Jules Verne crater has been classified as a pre-Nectarian impact crater. Our analysis indicates that it has an absolute model age (AMA) of 4.21−0.034+0.032 Ga. After its formation, a magmatic intrusion event created floor fractures, followed by two basaltic eruption events—one at 3.4 Ga and another at 2.6 Ga. Subsequently, around 1.4 billion years ago, lunar seismic activity likely took place in this region, resetting the surface ages of the crater floor fractures and surrounding areas, as evidenced by the scarp.

Keywords

• crater-floor fracture
• mare activity
• seismic activity
• lobate scarp
• crater size-frequency distribution
• poisson timing analysis