Publisher © Czech Geological Survey, ISSN: 2336-5757 (online), 0514-8057 (print)
Temporary outcrop of the Letná and Vinice formations (Upper Ordovician, Berounian) in the NE part of the Prague (Černý Most)
Abstract
A unique temporary outcrop of the boundary between Letná and Vinice formations in the northeastern part of the Prague Basin (Praha-Cerný Most) has been documented. Shallow-water development of both formations is presumed based both on lithological data - from prevailing siltstones and fine-grained sandstones with subordinate intercalations of claystones and oolitic pelosiderites in the lower parts of the Vinice Formation, and fossil record - of shallow-water dendroids. The boundary between both formations is concordant, affected by local tectonics only. It suggest a different view at to the role of tectonics in the studied area in contrast to that interpreted in geological maps 1 : 25,000.
