The Mare material is thought to be about 5 km deep, giving the Imbrium Basin a total depth of 12 km; it is thought that the original crater left by the Imbrium impact was as much as 100 km deep, but that the floor of the basin bounced back upwards immediately afterwards.
Marematerialet menes at være omkring 5 km dybt, dette giver Imbriumbassinet en total dybde på 12 km; man mener at det originale Imbrium nedslagskrater var så meget som 100 km dybt, men at bassinets bund sprang op igen lige efter nedslaget.