Osady caliche w wapieniu cechsztyńskim zachodniej części syneklizy pery bałtyckiej

Abstract

CALICHE DEPOSITS IN THE ZECHSTEIN LIMESTONE IN THE WESTERN PART OF THE PERI-BALTIC SYNECLISE (NORTHERN POLAND)

Summary

Caliche deposits were found within the stromatolitic-oncolitic complex of the Zechstein Limestone in northernPoland(Figs. 1–3). They are most commonly developed in the form of pisolites and crusts (Pl. I–IV, Figs. 4–6); the pisolites are hybrids, partly of algal and partly of caliche origin. The probable sequence of events leading to caliche development is presented in Fig. 7. The occurrence of caliche deposits in the Zechstein Limestone of northernPolandhas important palaeogeographical implications as it indicates the periodic subaerial exposure of vast regions of the Zechstein basin during the sedimentation of the Zechstein Limestone.