Ghost craters on Mercury

Ghost craters on the planet Mercury have tectonic features such as graben and wrinkle ridges. These features were formed by extensional and contractional forces originating in tectonic processes such as uplift and global contraction. The combination of graben and wrinkle ridges inside ghost craters found on Mercury has not been observed on any of the other terrestrial planets.^[1]

^ Watters, T. R.; Solomon, S. C.; Klimczak, C.; Freed, A. M.; Head, J. W.; Carolyn, M. E.; Blair, D. M.; Timothy, A. G.; Byrne, P. K. (December 2012). "Extension and contraction within volcanically buried impact craters and basins on Mercury". Geology. 40: 1123–1126. Bibcode:2012Geo....40.1123W. doi:10.1130/G33725.1.

[Watters_1-1] Watters, T. R.; Solomon, S. C.; Klimczak, C.; Freed, A. M.; Head, J. W.; Carolyn, M. E.; Blair, D. M.; Timothy, A. G.; Byrne, P. K. (December 2012). "Extension and contraction within volcanically buried impact craters and basins on Mercury". Geology. 40: 1123–1126. Bibcode:2012Geo....40.1123W. doi:10.1130/G33725.1.

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