Mare Fecunditatis
Mare Fecunditatis (the "sea of fecundity") is a
lunar mare 909 miles in diameter. The Fecuditatis basin formed in the
Pre-Nectarian epoch, while the basin material surrounding the mare is of the
Nectarian epoch. The mare matierial is of the
Upper Imbrian epoch and is relatively thin compared to
Mare Crisium or
Mare Tranquillitatis. This basin is overlapped with the Nectaris, Tranquillitatis, and Crisium basins. Fecunditatis basin meets Nectaris basin along Fecunditatis' western edge, with the area along this zone faulted by arcuated grabens. On the eastern edge of Fecunditatis is the
crater Langrenus.