A new stratigraphic inshight of the Upper Pliocene-Lower Pleistocene succession of Lower Valdarno (Tuscany Italy)
The post-Middle Pliocene stratigraphic evolution of lower Valdarno (northern Tuscany) is reviewed at the light of new stratigraphic data and facies analysis, integrated with the detailed geological mapping of a key area located north and south of the lower course of Arno River, between the towns of...
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ftunivpisairis:oai:arpi.unipi.it:11568/202509 2024-02-11T10:01:54+01:00 A new stratigraphic inshight of the Upper Pliocene-Lower Pleistocene succession of Lower Valdarno (Tuscany Italy) SARTI, GIOVANNI ZANCHETTA, GIOVANNI Testa G. Sarti, Giovanni Testa, G. Zanchetta, Giovanni 2008 STAMPA http://hdl.handle.net/11568/202509 eng eng volume:7 firstpage:24 lastpage:41 numberofpages:18 journal:GEOACTA http://hdl.handle.net/11568/202509 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-80051902597 Facies analysi Late Pliocene-Early Pleistocene Stratigraphy Depositional environment Extensional tectonic Lower Valdarno Tuscany info:eu-repo/semantics/article 2008 ftunivpisairis 2024-01-24T17:42:18Z The post-Middle Pliocene stratigraphic evolution of lower Valdarno (northern Tuscany) is reviewed at the light of new stratigraphic data and facies analysis, integrated with the detailed geological mapping of a key area located north and south of the lower course of Arno River, between the towns of Pontedera and S. Croce sull'Arno. The results are discussed taking into account the evolution of extensional tectonics. Three new al- lostratigraphic units (AU) are recognized in the Upper Pliocene-Lower Pleistocene successions on both sides of Lower Valdarno. The stratigraphic position of the widest marine ingression is considered a key element for correlation. The correlation proposed shows an increase in thickness northeastwards, which is here interpreted as due to deposition in a syn-rift half-graben setting. After a generalized uplift during Middle-Late Pliocene, renewed sedimentation occurred in the northeastern sector of the studied area, with partial communication with the sea and development of a lower delta-plain succession. After this first Late Pliocene phase, a new cycle followed on the whole studied area, with documented connection to the sea only in the northeastern sector. Successively, another cycle developed on both sides and deposition of open-marine Artica islandica-bearing deposits occurred. The last cycle (Early Pleistocene), constituted by transitional to continental deposits, is documented in the southern sector only. Article in Journal/Newspaper artica ARPI - Archivio della Ricerca dell'Università di Pisa |
institution |
Open Polar |
collection |
ARPI - Archivio della Ricerca dell'Università di Pisa |
op_collection_id |
ftunivpisairis |
language |
English |
topic |
Facies analysi Late Pliocene-Early Pleistocene Stratigraphy Depositional environment Extensional tectonic Lower Valdarno Tuscany |
spellingShingle |
Facies analysi Late Pliocene-Early Pleistocene Stratigraphy Depositional environment Extensional tectonic Lower Valdarno Tuscany SARTI, GIOVANNI ZANCHETTA, GIOVANNI Testa G. A new stratigraphic inshight of the Upper Pliocene-Lower Pleistocene succession of Lower Valdarno (Tuscany Italy) |
topic_facet |
Facies analysi Late Pliocene-Early Pleistocene Stratigraphy Depositional environment Extensional tectonic Lower Valdarno Tuscany |
description |
The post-Middle Pliocene stratigraphic evolution of lower Valdarno (northern Tuscany) is reviewed at the light of new stratigraphic data and facies analysis, integrated with the detailed geological mapping of a key area located north and south of the lower course of Arno River, between the towns of Pontedera and S. Croce sull'Arno. The results are discussed taking into account the evolution of extensional tectonics. Three new al- lostratigraphic units (AU) are recognized in the Upper Pliocene-Lower Pleistocene successions on both sides of Lower Valdarno. The stratigraphic position of the widest marine ingression is considered a key element for correlation. The correlation proposed shows an increase in thickness northeastwards, which is here interpreted as due to deposition in a syn-rift half-graben setting. After a generalized uplift during Middle-Late Pliocene, renewed sedimentation occurred in the northeastern sector of the studied area, with partial communication with the sea and development of a lower delta-plain succession. After this first Late Pliocene phase, a new cycle followed on the whole studied area, with documented connection to the sea only in the northeastern sector. Successively, another cycle developed on both sides and deposition of open-marine Artica islandica-bearing deposits occurred. The last cycle (Early Pleistocene), constituted by transitional to continental deposits, is documented in the southern sector only. |
author2 |
Sarti, Giovanni Testa, G. Zanchetta, Giovanni |
format |
Article in Journal/Newspaper |
author |
SARTI, GIOVANNI ZANCHETTA, GIOVANNI Testa G. |
author_facet |
SARTI, GIOVANNI ZANCHETTA, GIOVANNI Testa G. |
author_sort |
SARTI, GIOVANNI |
title |
A new stratigraphic inshight of the Upper Pliocene-Lower Pleistocene succession of Lower Valdarno (Tuscany Italy) |
title_short |
A new stratigraphic inshight of the Upper Pliocene-Lower Pleistocene succession of Lower Valdarno (Tuscany Italy) |
title_full |
A new stratigraphic inshight of the Upper Pliocene-Lower Pleistocene succession of Lower Valdarno (Tuscany Italy) |
title_fullStr |
A new stratigraphic inshight of the Upper Pliocene-Lower Pleistocene succession of Lower Valdarno (Tuscany Italy) |
title_full_unstemmed |
A new stratigraphic inshight of the Upper Pliocene-Lower Pleistocene succession of Lower Valdarno (Tuscany Italy) |
title_sort |
new stratigraphic inshight of the upper pliocene-lower pleistocene succession of lower valdarno (tuscany italy) |
publishDate |
2008 |
url |
http://hdl.handle.net/11568/202509 |
genre |
artica |
genre_facet |
artica |
op_relation |
volume:7 firstpage:24 lastpage:41 numberofpages:18 journal:GEOACTA http://hdl.handle.net/11568/202509 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-80051902597 |
_version_ |
1790597766551961600 |