Abstract
In the Early Miocene Zogelsdorf Formation of Lower Austria a transgression upon the rugged crystalline morphology of the Bohemian Massif has led to a complicated facies distribution. The sediments are bioclastic limestones and are compared with recent and fossil examples of temperate water carbonates. They have been studied using microfacies techniques including a point counter analysis of thin sections. Three facies dominate: a calcareous rich bryozoan facies, a calcareous rich coralline algal facies and a bivalve-barnacle facies rich in terrigenous components. Subordinate are an echinoderm-foraminiferal, a coralline algalbryozoan, a calcareous sandstone, an oyster and a conglomerate facies. The facies are interpreted with respect to exposure and supply of terrigenous components. The diagnostic features of lesser known fossils (barnacles and serpulids) in thin section are described.
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