The world-famous “Pesciara di Bolca” Fossil-Lagerstätte has been examined in its palaeontological and sedimentological aspects. A re-examination of the co-occurring age-diagnostic larger foraminifers (Alveolina and Nummulites) indicates a SBZ 11 (late Ypresian) age. Sedimentological characters allowed us to distinguish between autochthonous micritic limestones and allochthonous biocalcarenites–biocalcirudites; the latter are the product of penecontemporaneous transport from nearby areas. The depositional model here proposed involves a basin with restricted circulation and a prevailing micrite sedimentation. This basin was affected by relative sea-level oscillations and coarser grained storm-induced deposition. The palaeoenvironmental reconstruction suggests neighbouring emerged land and very shallow sea bottoms inhabited by large foraminifers such as Al- veolina and Nummulites. As yet, it is unclear whether a true coral reef was present nearby. The bottom on which the Pesciara deposits accumulated is interpreted as poorly oxygenated, possibly with stromatolite-like bacterial mats, thus allowing the exceptional preservation of the fish and plants.
Facies analysis, palaeoenvironmental reconstruction, and biostratigraphy, of the “Pesciara di Bolca” (Verona, northern Italy): An early Eocene Fossil-Lagerstätte / Papazzoni, Cesare Andrea; Trevisani, E.. - In: PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY. - ISSN 0031-0182. - STAMPA. - 242 (1-2)(2006), pp. 21-35.
Data di pubblicazione: | 2006 |
Titolo: | Facies analysis, palaeoenvironmental reconstruction, and biostratigraphy, of the “Pesciara di Bolca” (Verona, northern Italy): An early Eocene Fossil-Lagerstätte |
Autore/i: | Papazzoni, Cesare Andrea; Trevisani, E. |
Autore/i UNIMORE: | |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/j.palaeo.2006.05.011 |
Rivista: | |
Volume: | 242 (1-2) |
Pagina iniziale: | 21 |
Pagina finale: | 35 |
Codice identificativo ISI: | WOS:000242463400002 |
Codice identificativo Scopus: | 2-s2.0-33750724188 |
Citazione: | Facies analysis, palaeoenvironmental reconstruction, and biostratigraphy, of the “Pesciara di Bolca” (Verona, northern Italy): An early Eocene Fossil-Lagerstätte / Papazzoni, Cesare Andrea; Trevisani, E.. - In: PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY. - ISSN 0031-0182. - STAMPA. - 242 (1-2)(2006), pp. 21-35. |
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