Підсумовано мінералого-петрографічні дослідження теригенних і карбонатних
порід стрийської світи Скибової зони Українських Карпат. На основі літологічного
дослідження виділено характерні літофаціальні різновиди нашарувань сантон-датського віку та встановлено їхнє просторово-вікове поширення.
Sedimentations of flysh of Late Cretaceous – Early Palaeocene age in the Skybian
zone of the Ukrainian Carpathians are singled out into Striy suite. Mineralogical-petrographic structural and textural studies of sediments of Striy suite has allowed allocating in
this complex age specific lithofacies, namely: marly-clay-sandy, clay-marly-sandy, sandy,
sand and clay lithofacies, sand-siltstone-clay lithofacies and lithofacies of gritstones.
Marly-clay-sandy lithofacies composed alternating thin layers of sandstones, siltstones, mudstones and marls, with tabbed sections of sandstone thickness of 0.25–0.8 m,
sporadically up to 1.5 m. Content of carbonates in sediments of lithofacies ranges from 65
to 25 %.
Clay-marly-sandy lithofacies. The thickness of the rocks lithofacies reaches 130 m.
Sandstones, siltstones and mudstones make up typical thin rhythms more or less the same
thickness. The content of CaCO3 in rocks lithofacies ranges from 49 to 27 %.
Sandy lithofacies – its thickness is 120–150 m. The sediments of lithofacies represented by alternation of massive sandstones, and thin layers siltstones and mudstones with
a clear predominance of psamito-psepholites. In the textural-structural terms, they resemble the socalled “yamnenski” psephitholites Paleocene, but unlike them, these terrigenous rocks are characterized by high content of carbonates (14–23 %).
