The Stipinai Regional stage (Upper Devonian) in Petrašiūnai quarry

Abstract

J. Dalinkevičius was the first to establish the Stipinai Regional stage in 1939. The name is after the Stipinai Village located in the northern Lithuania. The stratotype is in the Mūša River outcrop between Petrašiūnai and Svobiškės villages. The Petrašiūnai quarry is in the Petrašiūnai Village, which belongs to the Pakruojis District. The Stipinai Regional stage is cropping out in some parts of the quarry and its thickness varies from 3 to 9 m. Production of dolostone in the Petrašiūnai quarry started in 1959. The largest amounts of dolostone were excavated in 2008.