Geological map of the region of Ibbenbüren, Osnabrück and
Münster.
CW = Westfalian, s = Bunter, k = Keuper, jl = Lias, kru = Lower Cretaceous,
kro = Upper Cretaceous,
s,m = boulder clay (Pleistocene), comma followed by a letter = Holocene
deposit.
Adapted part of the geological map of Western Germany.