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Mare Humorum : ウィキペディア英語版 | Mare Humorum
Mare Humorum (the "Sea of Moisture") is a lunar mare. The impact basin it is located in is 425 kilometers across.〔D. Ben J. Bussey et al., "Humorum Basin Geology from Clementine Data," Lunar and Planetary Science Conference XXVIII (1997)〕 ==Geology== It was not sampled by the Apollo program, so a precise age has not been determined. However, geological mapping indicates that it is intermediate in age between the Imbrium and Nectaris Basins, suggesting an age of about 3.9 billion years. Humorum Basin is filled with a thick layer of mare basalt, believed to exceed 3 kilometers in thickness at the center of the basin. On the north edge of Mare Humorum is the large crater Gassendi, which was considered as a possible landing site for Apollo 17.
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