An isolated olistolith in the Ciucaş Conglomerates (Albian, Carpathian Bend)

Essay on sedimentogenetic significance

Abstract

In the eastern part of the Ciucaș Mountains (Carpathian Bend area) an 18 m long limestone block was located. Unlike the numerous Albian Bucegi olistoliths included in shallow-waters shelf sediments, this is the first olistolith identified in the Albian deep sea fan sediments from the Carpathian Bend area. Structureless rudites are embedding the Ciucaș olistolith, suggesting that rudites and olistolith were transported together due to sediment gravity flow processes. Two Ciucaș olistolith provenance hypotheses are discussed including a local or a distal source area.