Within the technical cooperation project "Groundwater for the North of Namibia", funded by the European Union and the Bundesministerium für Wirtschaftliche Zusammenarbeit und Entwicklung (BMZ), exploratory drilling was conducted to a depth of 400 m in parts of the Cubango Megafan. In order to get a better picture of the sedimentological and hydrogeological genesis of the Owambo Basin and especially in the Cubango Megafan, a research project, funded by the Bundesanstalt für Geowissenschaften und Rohstoffe (BGR) was initiated to investigate samples and core sections that were retrieved in above mentioned drillings. For this project, a first set of samples from flushing of mud rotary drills and core drill sections were analyzed by different methods and resulted in several short reports and data collections. These were combined in this report to have both a general and detailed overview. The accessory appendix contains many tables and figures of these and additional investigations. An additional product of these analyses is the publication of Dill et al. (2012). A second set of samples is currently investigated. Due to the fact that sample investigation is ongoing and further publications are already in preparation the discussion and conclusions are kept rather short.