For the drafting of this Geological Outline, one source consisted of the following older cartographic materials in various scales:
- Geologische Karten von Berlin [Geological maps of Berlin] 1:10,000, (1956 – 1991)
- Geologische Spezialkarten [Geological special maps] 1:25,000, (1878 – 1937)
- Lithofazieskarte Quartär [Lithofacies map, Quarternary], 1:50,000, (1971 – 1988)
- Geologische Übersichtskarte von Berlin und Brandenburg [Geological overview map of Berlin and Brandenburg] 1:100,000, (1995)
- Geologische Übersichtskarte [Geological overview map] 1:200,000; sheet CC 3942 – Berlin, (1998)
The other source was the layer directory of approx. 140,000 drillings as of 2006, from the geological data base of the Berlin State Geological Service, of which excerpts were evaluated.