Original scientific paper

Evidence of microbial activity in siderite and calcite deposits on gastropod shells in Pliocene sand and clay beds from Lipovljani, Croatia

Hrvoje Posilović ; Department of Geology, Faculty of Science
Vladimir Bermanec ; Odsjek za geologiju, Prirodoslovno matematički fakultet
Goran Kniewald ; Division of Ma rine and En vironmental Research, Rudjer Boskovic Institute

Abstract

Freshwater Pliocene sand and clays found near Lipovljani in western Slavonia, Croatia, contain gastropods preserved by diagenetic mineral incrustations of alternating calcite and siderite. The geochemical possibility of siderite formation is evaluated, and evidence for microbial mediation of siderite deposition around fossil carbonate shells is
presented.

Keywords

concretions; fresh water diagenesis; iron bacteria; calcite; siderite; Pliocene; Slavonia; Croatia

Hrčak ID:

24880

URI

https://hrcak.srce.hr/24880

Publication date:

2.7.2008.

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