Change from rimmed to ramp platform forced by regional and global events in the Cretaceous of the Friuli-Adriatic Platform (Southern Alps, Italy)
Carbonate platforms are sedimentary archives recording the evolution of the global carbon cycle. Their stratigraphic architecture depends on the regional tectonics, controlling subsidence rates and geome- tries, as well as the paleoceanography and evolutionary trends, controlling the different organ...
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Online Access: | http://hdl.handle.net/11571/1280566 https://doi.org/10.1016/j.cretres.2019.07.007 |
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ftunivpavia:oai:iris.unipv.it:11571/1280566 2024-04-14T08:16:07+00:00 Change from rimmed to ramp platform forced by regional and global events in the Cretaceous of the Friuli-Adriatic Platform (Southern Alps, Italy) Vincenzo Picotti Miriam Cobianchi Valeria Luciani Franziska Blattmann Tanja Schenker MARIANI, ERICA Stefano M. Bernasconi Helmut Weissert Vincenzo, Picotti Cobianchi, Miriam Valeria, Luciani Franziska, Blattmann Tanja, Schenker Mariani, Erica Bernasconi, Stefano M. Helmut, Weissert 2019 STAMPA http://hdl.handle.net/11571/1280566 https://doi.org/10.1016/j.cretres.2019.07.007 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000488316300005 volume:104 firstpage:1 lastpage:20 numberofpages:20 journal:CRETACEOUS RESEARCH http://hdl.handle.net/11571/1280566 doi:10.1016/j.cretres.2019.07.007 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85070672672 Cretaceous oceanic anoxic events Calcareous nannofossils Foraminifera Stable carbon isotopes Platform margin Alpine/dinaric foreland basin info:eu-repo/semantics/article 2019 ftunivpavia https://doi.org/10.1016/j.cretres.2019.07.007 2024-03-21T16:01:31Z Carbonate platforms are sedimentary archives recording the evolution of the global carbon cycle. Their stratigraphic architecture depends on the regional tectonics, controlling subsidence rates and geome- tries, as well as the paleoceanography and evolutionary trends, controlling the different organisms thriving at their margins, such as frame-building corals or mound-building microbes. We present an integrated bio- and chemostratigraphic study of the Aptian to Santonian interval of a base-of-slope section located in the Southern Alps of northeastern Italy that we correlate with the classic section representing the Friuli-Adriatic Carbonate Platform, one of the largest isolated platforms of the low latitude Tethys. We show the effects of the end of the passive-margin stage and the interaction between foreland flexuring due to the growing Alps, to which the study area represented the retroforeland, and the approaching prowedge of the Dinarides. The Friuli-Adriatic platform margin shows an abrupt change from reef rimmed to ramp, where abundant microbial mounds provided the habitat for the rudists to thrive. This change occurred around the late Albian and likely correlates with the Oceanic Anoxic Event (OAE) 1d. The previous OAE's did not change the structure of this platform, whose margins were mostly rigid and colonized by corals and calcareous sponges. Late Albian was a time of important changes in paleoceanography in Tethys and North Atlantic Oceans. We propose that the paleooceanographic changes related to the OAE- 1d had more profound impacts on the Friuli-Adriatic Platform than the previous Cretaceous OAE's since they co-occurred with the tectonic transition from passive margin to foreland ramp. The increased subsidence rates, in conjuction with the important late Albian paleo- ceanographic changes, created favourable conditions for a dramatic change in the platform margin physiography and ecology. Article in Journal/Newspaper North Atlantic IRIS UNIPV (Università degli studi di Pavia) Ramp The ENVELOPE(166.433,166.433,-77.633,-77.633) Cretaceous Research 104 104177 |
institution |
Open Polar |
collection |
IRIS UNIPV (Università degli studi di Pavia) |
op_collection_id |
ftunivpavia |
language |
English |
topic |
Cretaceous oceanic anoxic events Calcareous nannofossils Foraminifera Stable carbon isotopes Platform margin Alpine/dinaric foreland basin |
spellingShingle |
Cretaceous oceanic anoxic events Calcareous nannofossils Foraminifera Stable carbon isotopes Platform margin Alpine/dinaric foreland basin Vincenzo Picotti Miriam Cobianchi Valeria Luciani Franziska Blattmann Tanja Schenker MARIANI, ERICA Stefano M. Bernasconi Helmut Weissert Change from rimmed to ramp platform forced by regional and global events in the Cretaceous of the Friuli-Adriatic Platform (Southern Alps, Italy) |
topic_facet |
Cretaceous oceanic anoxic events Calcareous nannofossils Foraminifera Stable carbon isotopes Platform margin Alpine/dinaric foreland basin |
description |
Carbonate platforms are sedimentary archives recording the evolution of the global carbon cycle. Their stratigraphic architecture depends on the regional tectonics, controlling subsidence rates and geome- tries, as well as the paleoceanography and evolutionary trends, controlling the different organisms thriving at their margins, such as frame-building corals or mound-building microbes. We present an integrated bio- and chemostratigraphic study of the Aptian to Santonian interval of a base-of-slope section located in the Southern Alps of northeastern Italy that we correlate with the classic section representing the Friuli-Adriatic Carbonate Platform, one of the largest isolated platforms of the low latitude Tethys. We show the effects of the end of the passive-margin stage and the interaction between foreland flexuring due to the growing Alps, to which the study area represented the retroforeland, and the approaching prowedge of the Dinarides. The Friuli-Adriatic platform margin shows an abrupt change from reef rimmed to ramp, where abundant microbial mounds provided the habitat for the rudists to thrive. This change occurred around the late Albian and likely correlates with the Oceanic Anoxic Event (OAE) 1d. The previous OAE's did not change the structure of this platform, whose margins were mostly rigid and colonized by corals and calcareous sponges. Late Albian was a time of important changes in paleoceanography in Tethys and North Atlantic Oceans. We propose that the paleooceanographic changes related to the OAE- 1d had more profound impacts on the Friuli-Adriatic Platform than the previous Cretaceous OAE's since they co-occurred with the tectonic transition from passive margin to foreland ramp. The increased subsidence rates, in conjuction with the important late Albian paleo- ceanographic changes, created favourable conditions for a dramatic change in the platform margin physiography and ecology. |
author2 |
Vincenzo, Picotti Cobianchi, Miriam Valeria, Luciani Franziska, Blattmann Tanja, Schenker Mariani, Erica Bernasconi, Stefano M. Helmut, Weissert |
format |
Article in Journal/Newspaper |
author |
Vincenzo Picotti Miriam Cobianchi Valeria Luciani Franziska Blattmann Tanja Schenker MARIANI, ERICA Stefano M. Bernasconi Helmut Weissert |
author_facet |
Vincenzo Picotti Miriam Cobianchi Valeria Luciani Franziska Blattmann Tanja Schenker MARIANI, ERICA Stefano M. Bernasconi Helmut Weissert |
author_sort |
Vincenzo Picotti |
title |
Change from rimmed to ramp platform forced by regional and global events in the Cretaceous of the Friuli-Adriatic Platform (Southern Alps, Italy) |
title_short |
Change from rimmed to ramp platform forced by regional and global events in the Cretaceous of the Friuli-Adriatic Platform (Southern Alps, Italy) |
title_full |
Change from rimmed to ramp platform forced by regional and global events in the Cretaceous of the Friuli-Adriatic Platform (Southern Alps, Italy) |
title_fullStr |
Change from rimmed to ramp platform forced by regional and global events in the Cretaceous of the Friuli-Adriatic Platform (Southern Alps, Italy) |
title_full_unstemmed |
Change from rimmed to ramp platform forced by regional and global events in the Cretaceous of the Friuli-Adriatic Platform (Southern Alps, Italy) |
title_sort |
change from rimmed to ramp platform forced by regional and global events in the cretaceous of the friuli-adriatic platform (southern alps, italy) |
publishDate |
2019 |
url |
http://hdl.handle.net/11571/1280566 https://doi.org/10.1016/j.cretres.2019.07.007 |
long_lat |
ENVELOPE(166.433,166.433,-77.633,-77.633) |
geographic |
Ramp The |
geographic_facet |
Ramp The |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000488316300005 volume:104 firstpage:1 lastpage:20 numberofpages:20 journal:CRETACEOUS RESEARCH http://hdl.handle.net/11571/1280566 doi:10.1016/j.cretres.2019.07.007 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85070672672 |
op_doi |
https://doi.org/10.1016/j.cretres.2019.07.007 |
container_title |
Cretaceous Research |
container_volume |
104 |
container_start_page |
104177 |
_version_ |
1796314701040189440 |