| (Penck) | | | | | | | | | | =Glacial II= | ? | ? | -- | | "Mindelian" of Penck | | | | | | | | | | _Interglacial_ =1= | ? | ? | Mousterian | | = Günz-Mindel interval | | | Chellean | | (Penck) | | | | | | | | | | =Glacial I= "Günzian" | ? | ? | -- | | of Penck | | | | | | | | | +------------------------+-------------+-------------+--------------+ +------------------------+--------------+------------+-----------------+ | | 1908 | 1908 | 1878 | | Penck's scheme[1] +--------------+------------+-----------------+ | | Rutot | Sollas | Skertchley[3] | +------------------------+--------------+------------+-----------------+ | Postglacial =4= = with | Neolithic | ? | Neolithic | | Achen and other | period | | period | | oscillations (Penck) | | | | | | | | | | =Glacial IV= 2nd | Lower | ? | Hessle | | Pleistocene(2) | Magdalenian | | Boulder-clay | | Glaciation of Boule. | Solutréan | | | | "Würmian" of Penck | Aurignacian | | | | | | | | | _Interglacial_ =3= | Mousterian | Acheulean | Palaeoliths | | = Riss-Würm interval | Upper | | of the | | (Penck) | Acheulean | | "modern-valley" | | | | | type. | | | | | Valley-gravels | | | | | of present | | | | | Ouse, Cam, etc. | | | | | | | =Glacial III= 1st | Lower | [Chalky | Purple | | Pleistocene Glaciation | Acheulean |Boulder-clay| Boulder-clay | | of Boule. "Rissian" | Chellean | of Hoxne] | | | of Penck | | | | | | | | |