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Journal of Palaeogeography
Fig. 4 | Journal of Palaeogeography

Fig. 4

From: Demise of the Jabłonna Reef (Zechstein Limestone) and the onset of gypsum deposition (Wuchiapingian, west Poland): carbonate-to-evaporite transition in a saline giant

Fig. 4

Aspects of the uppermost part of the Zechstein Limestone in the Jabłonna 1 borehole (the depths in relation to the top of Zechstein Limestone are: a, b − 2.8 m, c –2.4 m, d-h − 0.1 m); an – anhydrite, bs – bivalve shell, fe – foraminiferal encrustation, ga – gastropod shell, me – microbial encrustation, os - ostracod. a, b clast of recrystallized peloidal deposit showing relics of stromatolitic lamination and encrusting foraminifers; arrow shows the carbonate crust with common pseudomorphs after lenticular gypsum crystals shown in (b); c bivalve shells with microbial encrustations, gastropods, ostracods, encrusting foraminifers and other small allochems in recrystallized micritic matrix and anhydrite cement (sample taken from a clast); d sample shown by X in Fig. 3a; e-h fragments of (d) showing aspects of microbial lamination (e, f, h) and encrusting foraminifers (g, h)

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