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Tectonic History and Seismicity in the Lunar North Polar Region: New Insights From the Geometry, Kinematics, Resurfacing Ages, and Seismic Hazard Potential of Lobate Scarps.

Mishra A, Kumar PS.

JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS

https://doi.org/10.1029/2024JE008639 

The Moon has been undergoing global contraction in the last one billion years, leading to development of lobate scarps globally. Despite many previous studies, the formation characteristics of lobate scarps in the lunar polar regions are poorly known. In this study, authors focused on the lunar north polar region, where we newly detected >280 individual lobate scarp segments and characterized their morphologic properties and formation ages. Many scarps show pole-ward movements. 105 scarp segments have been dated using conventional crater counting method.

Fig: The LROC- WAC image mosaic of the LNPR showing the newly identified (yellow lines) and previously reported (red lines) lobate scarps. The pink stars are epicenters of 2 shallow moonquakes detected by the Apollo missions are plotted. An Example of lobate scarps newly detected from this study.

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