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| Content Provider | Springer Nature Link |
|---|---|
| Author | Conti, Stefa Fontana, Daniela Lucente, Corrado C. |
| Copyright Year | 2008 |
| Abstract | The Middle Miocene Marnoso-arenacea Formation at Deruta in the northern Apennines of Italy rests unconformably on an orogenic wedge adjacent to the Adriatic foredeep. Based on a detailed facies analysis, the succession reveals two genetically related depositional systems: a distal delta-fed sand-rich system and a more proximal fan-delta slope system. Petrographic data confirm the genetic relationship between the two depositional systems, with the fan-delta slope feeding the basinward sand-rich system. The Deruta depositional setting shows a multi-step sedimentary evolution controlled by tectonically induced relative sea-level changes. The first stage, corresponding to a sea-level rise, promoted deposition in a wedge-top basin of pebbly sand and sand lobes (delta-fed). The second stage, characterized by intense tectonic activity (uplift) and sea-level fall, promoted accumulation of a prograding fan-delta slope replacing the sand-rich lobes. This phase was dominated by mass failures and methanogenic cold seepages. During these two stages, the wedge-top basin was isolated from the adjacent foredeep. Only during the third stage was a connection established, with the development of a deep-sea fan in the foredeep, fed by a deltaic depositional system. |
| Starting Page | 479 |
| Ending Page | 498 |
| Page Count | 20 |
| File Format | |
| ISSN | 01729179 |
| Journal | Facies |
| Volume Number | 54 |
| Issue Number | 4 |
| e-ISSN | 16124820 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2008-07-16 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Facies analysis Fan-delta slope Delta-fed sand-rich deposits Relative sea-level change Foredeep Northern Apennines Ecology Paleontology Geochemistry Biogeosciences Sedimentology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Geology Stratigraphy Paleontology |
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