In the Ukrainian part of the Silesian Nappe (Outer Carpathians, Uzh River Basin) the exotic clast-bearing Uzhok Olistostrome (up to 60 m thick) occurs within the Oligocene Krosno Formation and underlies the Pikui Sandstone (Otryt Sandstone in Poland). The Uzhok Olistostrome consists of debris/grain/mud flow deposits with clasts of schist and bioclastic limestone. These deposits contain redeposited pelagic sediments with planktonic foraminifers including Parogloborotalia pseudocontinuosa (Jenkins), Ciperoella ciperoensis (Bolli), Globoturborotalita woodi (Jenkins), Chiloguembelina adriatica Premec Fucek, Hernitz Kucenjak and Huber. The age of the Uzhok Olistostrome based on planktonic foraminifers correlates with the middle Oligocene within the middle O2–O5 zones. The source area for the Uzhok Olistostrome and Pikui Sandstone was a mid-Oligocene intrabasinal palaeouplift (the Pikui Ridge) interpreted as the fore-bulge located in the Silesian Sub-basin ahead the emerging Outer Carpathian accretionary prism (including the Dukla Nappe and other West Carpathian inner flysch nappes).

在西里西亚海带的乌克兰部分（外喀尔巴阡山脉，乌日河流域），具有奇异碎屑的 Uzhok Olistostrome（厚达 60 m）出现在渐新世 Krosno 组内，位于 Pikui 砂岩（波兰的 Otryt 砂岩）之下。Uzhok Olistostrome 由碎屑/颗粒/泥浆流沉积物组成，带有片岩和生物碎屑石灰岩。这些沉积物含有重新沉积的浮游有孔虫的中上层沉积物，包括Parogloborotalia pseudocontinuosa (Jenkins)、Ciperoella ciperoensis (Bolli)、Globoturborotalita woodi (Jenkins)、Chiloguembelina adriaticaPremec Fucek、Hernitz Kucenjak 和 Huber。基于浮游有孔虫的Uzhok Olistostrome的年龄与中O2-O5带内的中渐新世相关。Uzhok Olistostrome 和 Pikui 砂岩的源区是一个中渐新世的盆地内古隆起（Pikui Ridge），被解释为位于西里西亚次盆地新兴的外喀尔巴阡山脉增生棱柱（包括 Dukla Nappe 和其他西部喀尔巴阡山脉内复理纱）。