Szczegóły publikacji
Opis bibliograficzny
Evidence of bacteriogenic iron and manganese oxyhydroxides in Albian-Cenomanian marine sediments of the Carpathian realm (Poland) / Marta BĄK, Krzysztof Bąk, Zbigniew GÓRNY, Beata Stożek // Annales Societatis Geologorum Poloniae ; ISSN 0208-9068. — 2015 — vol. 85 iss. 2, s. 371–385. — Bibliogr. s. 382–385, Abstr. — Z. Górny – dod. afiliacja: Jagiellonian University
Autorzy (4)
- AGHBąk Marta
- Bąk Krzysztof
- AGHGórny Zbigniew
- Stożek Beata
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 90888 |
|---|---|
| Data dodania do BaDAP | 2015-08-06 |
| Tekst źródłowy | URL |
| DOI | 10.14241/asgp.2015.013 |
| Rok publikacji | 2015 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Annales Societatis Geologorum Poloniae |
Abstract
The Albian and Cenomanian marine sediments of the Silesian and Tatric basins in the Carpathian realm of the Western Tethys contain ferric and ferromanganese oxyhydroxides, visible macroscopically as brown stainings. They coat calcareous bioclasts and mineral (lasts, fill pore spaces, or locally form continuous, parallel microlayers, tens of micrometers thick. Light-microscope (LM) and scanning-electron-microscope (SEM) observations show that the coatings contain elongated capsules, approximately 3-5 mu m across and enriched in iron and manganese, which may be remnants of the original sheaths of iron-related bacteria (IRB). Moreover, the ferric and ferromanganese staining observed under LM is similar to bacterial structures, resembling the sheaths, filaments and rods formed by present-day bacteria of the Sphaerotilus Leptothrix group. All of the possible bacteria-like structures are well preserved owing to processes of early diagenetic cementation, if the observed structures are fossil IRB, these organisms could have played an important role in iron and manganese accumulation on the sea floor during Albian Cenomanian time. The most plausible source of metals for bacterial concentration in the Silesian Basin might have been submarine low-temperature hydrothermal vents, as previously was hypothesized for Cenomanian-Turonian deposits on the basis of geochemical indices.
