Figure 2
Schematic description of the sedimentological situation (left), outcrop photographs, and event stratigraphic interpretion of the sedimentologic succession (right) in the (former) sand pit Ziemetshausen; outcrop no. 1 in the text. Two impact-seismic events (Ries and Steinheim? impact-earthquakes) are reported by the occurrence of a primary horizon of distal Ries ejecta. Due to the mining level in that outcrop, only the top of sediments of the lower seismite horizon with indistinct convolute bedding were observed. A metre-thick seismite horizon underlying the distal Ries ejecta was not detected unequivocally in this sand pit, but is to be expected. The second impact-earthquake (Steinheim impact) induced a relatively thick seismite horizon with slumps and convolute bedding. A succession of about 12 m of undisturbed OSM sediments were deposited between the two impact events. Photographs of the Steinheim seismite (upper three pictures) were taken by E.B. in 2008 and those of the distal Ries ejecta (lower two pictures) by Peter Bockstaller (Schopfheim) in 2005.
