Unconformity (disconformity), with marine Upper Cretaceous layers deposited above Paleozoic crystalline basement. The hiatus between basement granite and sedimentary cover is more than 200 million years. the outcrop is about 10 m long. [Geotope Obertrübenbach](https://www.lfu.bayern.de/geologie/bayerns_schoenste_geotope/75/index.htm), an abandoned quarry near Regensburg, Bayern, Germany.