Geologia Croatica, Vol. 61 No. 1, 2008.
Izvorni znanstveni članak
Evidence of microbial activity in siderite and calcite deposits on gastropod shells in Pliocene sand and clay beds from Lipovljani, Croatia
Hrvoje Posilović
; Odsjek za geologiju, Prirodoslovno matematički fakultet
Vladimir Bermanec
; Odsjek za geologiju, Prirodoslovno matematički fakultet
Goran Kniewald
; Division of Ma rine and En vironmental Research, Rudjer Boskovic Institute
Sažetak
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.
Ključne riječi
concretions; fresh water diagenesis; iron bacteria; calcite; siderite; Pliocene; Slavonia; Croatia
Hrčak ID:
24880
URI
Datum izdavanja:
2.7.2008.
Posjeta: 2.255 *