In the present study, the Middle Jurassic exhumed carbonate concretions (the so-called hiatus concretions) from the Polish Jura (southern Poland) were studied ichnologically (precursor burrows and their tiering and bioerosion patterns) in order to decipher the palaeoenvironmental conditions leading to their formation and exhumation. The ichnological approach to the concretionary bodies used in this study yielded information on the scale of seafloor erosion and its relative timing compared to the burrow-infilling phase. The bioerosion patterns also provided information on proximal-distal trends and the frequency and strength of currents in the environment below storm wave base, a setting recorded in the monotonous, concretion-bearing siliciclastic sections which is studied here. The significance of the stratigraphic sequence is also briefly discussed based on the horizons containing the hiatus concretions.

在本研究中，从植物学角度（前体洞穴及其分层和生物侵蚀模式）研究了来自波兰侏罗（波兰南部）的中侏罗世发掘出的碳酸盐岩结垢（所谓的裂隙结垢），以破译导致它们的古环境条件。形成和发掘。对本研究中使用的固结体的物候学方法得出了有关海床侵蚀规模及其相对时机的信息，与洞穴填充阶段相比。生物侵蚀模式还提供了有关风暴波基下环境中近端-远端趋势以及电流频率和强度的信息，在单调，含固结硅质碎屑区中记录了这种设置，在此进行研究。