Potential Cretaceous–Paleogene boundary tsunami deposit in the intra-Tethyan Adriatic carbonate platform section of Hvar (Croatia)
An exceptional 47-m-thick succession of Maastrichtian to Paleocene inner-platform carbonates is exposed on the Dalmatian island of Hvar (Adriatic Sea, Croatia) in a seaside locality called Majerovica. The middle part of this succession is an similar to 5-m-thick intraformational massive deposit, whi...
Published in: | Geological Society of America Bulletin |
---|---|
Main Authors: | , , , , , , , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2015
|
Subjects: | |
Online Access: | http://hdl.handle.net/11576/2628433 https://doi.org/10.1130/B31084.1 |
id |
ftunivurbino:oai:ora.uniurb.it:11576/2628433 |
---|---|
record_format |
openpolar |
spelling |
ftunivurbino:oai:ora.uniurb.it:11576/2628433 2024-04-14T08:16:05+00:00 Potential Cretaceous–Paleogene boundary tsunami deposit in the intra-Tethyan Adriatic carbonate platform section of Hvar (Croatia) Korbar, Tvrtko Montanari, Alessandro Fućek, Vlasta Premec Fuček, Ladislav COCCIONI, RODOLFO Mcdonald, Iain Claeys, Philippe Schulz, Toni Koeberl, Christian Korbar, Tvrtko Montanari, Alessandro Fućek, Vlasta Premec Fuček, Ladislav Coccioni, Rodolfo Mcdonald, Iain Claeys, Philippe Schulz, Toni Koeberl, Christian 2015 http://hdl.handle.net/11576/2628433 https://doi.org/10.1130/B31084.1 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000364200700013 volume:127 issue:11/12 firstpage:1666 lastpage:1680 numberofpages:15 journal:GEOLOGICAL SOCIETY OF AMERICA BULLETIN http://hdl.handle.net/11576/2628433 doi:10.1130/B31084.1 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84948946173 STRONTIUM-ISOTOPE STRATIGRAPHY PLATINUM-GROUP ELEMENTS LOOK-UP TABLE K-T BOUNDARY TERTIARY BOUNDARY CHICXULUB IMPACT MAIELLA PLATFORM STORM DEPOSITS NORTH-ATLANTIC PALEOCENE info:eu-repo/semantics/article 2015 ftunivurbino https://doi.org/10.1130/B31084.1 2024-03-21T17:03:04Z An exceptional 47-m-thick succession of Maastrichtian to Paleocene inner-platform carbonates is exposed on the Dalmatian island of Hvar (Adriatic Sea, Croatia) in a seaside locality called Majerovica. The middle part of this succession is an similar to 5-m-thick intraformational massive deposit, which is underlain by well-bedded peritidal innerplatform limestones containing latest Maastrichtian rudists and shallow-water benthic foraminifera. This deposit includes a polygenic, matrix-supported carbonate breccia characterized by ripped-up platform limestone lithoclasts, up to boulder sized, and polygenic microbreccia in a muddy matrix. The microbreccia contains rare small intraclasts of pelagic mudstone containing terminal Maastrichtian planktonic foraminifera. The deposit is overlain in turn by mudstone containing a planktonic foraminiferal association belonging to the P0 and Pa zones of the basal Paleogene, and by shallow-water muddy limestones containing planktonic foraminifera belonging to the P1 zone. While facies suggest that the deposit was emplaced over the inner platform by a single large tsunami, the biostratigraphic assessment of this section and the presence of enhanced concentrations of platinum group elements, such as iridium, in the topmost part of the massive deposit lend support to the hypothesis that this tsunamite is related to the Chicxulub impact in Yucatan. This is potentially the first case of a tropical carbonate platform sedimentary succession recording the Cretaceous-Paleogene boundary event, which provides a new constraint for modeling both the western Tethyan paleogeography and the catastrophic aftermaths of the Chicxulub impact-at the end of the Mesozoic Era. Article in Journal/Newspaper North Atlantic Planktonic foraminifera Università degli Studi di Urbino: CINECA IRIS Geological Society of America Bulletin 127 11-12 1666 1680 |
institution |
Open Polar |
collection |
Università degli Studi di Urbino: CINECA IRIS |
op_collection_id |
ftunivurbino |
language |
English |
topic |
STRONTIUM-ISOTOPE STRATIGRAPHY PLATINUM-GROUP ELEMENTS LOOK-UP TABLE K-T BOUNDARY TERTIARY BOUNDARY CHICXULUB IMPACT MAIELLA PLATFORM STORM DEPOSITS NORTH-ATLANTIC PALEOCENE |
spellingShingle |
STRONTIUM-ISOTOPE STRATIGRAPHY PLATINUM-GROUP ELEMENTS LOOK-UP TABLE K-T BOUNDARY TERTIARY BOUNDARY CHICXULUB IMPACT MAIELLA PLATFORM STORM DEPOSITS NORTH-ATLANTIC PALEOCENE Korbar, Tvrtko Montanari, Alessandro Fućek, Vlasta Premec Fuček, Ladislav COCCIONI, RODOLFO Mcdonald, Iain Claeys, Philippe Schulz, Toni Koeberl, Christian Potential Cretaceous–Paleogene boundary tsunami deposit in the intra-Tethyan Adriatic carbonate platform section of Hvar (Croatia) |
topic_facet |
STRONTIUM-ISOTOPE STRATIGRAPHY PLATINUM-GROUP ELEMENTS LOOK-UP TABLE K-T BOUNDARY TERTIARY BOUNDARY CHICXULUB IMPACT MAIELLA PLATFORM STORM DEPOSITS NORTH-ATLANTIC PALEOCENE |
description |
An exceptional 47-m-thick succession of Maastrichtian to Paleocene inner-platform carbonates is exposed on the Dalmatian island of Hvar (Adriatic Sea, Croatia) in a seaside locality called Majerovica. The middle part of this succession is an similar to 5-m-thick intraformational massive deposit, which is underlain by well-bedded peritidal innerplatform limestones containing latest Maastrichtian rudists and shallow-water benthic foraminifera. This deposit includes a polygenic, matrix-supported carbonate breccia characterized by ripped-up platform limestone lithoclasts, up to boulder sized, and polygenic microbreccia in a muddy matrix. The microbreccia contains rare small intraclasts of pelagic mudstone containing terminal Maastrichtian planktonic foraminifera. The deposit is overlain in turn by mudstone containing a planktonic foraminiferal association belonging to the P0 and Pa zones of the basal Paleogene, and by shallow-water muddy limestones containing planktonic foraminifera belonging to the P1 zone. While facies suggest that the deposit was emplaced over the inner platform by a single large tsunami, the biostratigraphic assessment of this section and the presence of enhanced concentrations of platinum group elements, such as iridium, in the topmost part of the massive deposit lend support to the hypothesis that this tsunamite is related to the Chicxulub impact in Yucatan. This is potentially the first case of a tropical carbonate platform sedimentary succession recording the Cretaceous-Paleogene boundary event, which provides a new constraint for modeling both the western Tethyan paleogeography and the catastrophic aftermaths of the Chicxulub impact-at the end of the Mesozoic Era. |
author2 |
Korbar, Tvrtko Montanari, Alessandro Fućek, Vlasta Premec Fuček, Ladislav Coccioni, Rodolfo Mcdonald, Iain Claeys, Philippe Schulz, Toni Koeberl, Christian |
format |
Article in Journal/Newspaper |
author |
Korbar, Tvrtko Montanari, Alessandro Fućek, Vlasta Premec Fuček, Ladislav COCCIONI, RODOLFO Mcdonald, Iain Claeys, Philippe Schulz, Toni Koeberl, Christian |
author_facet |
Korbar, Tvrtko Montanari, Alessandro Fućek, Vlasta Premec Fuček, Ladislav COCCIONI, RODOLFO Mcdonald, Iain Claeys, Philippe Schulz, Toni Koeberl, Christian |
author_sort |
Korbar, Tvrtko |
title |
Potential Cretaceous–Paleogene boundary tsunami deposit in the intra-Tethyan Adriatic carbonate platform section of Hvar (Croatia) |
title_short |
Potential Cretaceous–Paleogene boundary tsunami deposit in the intra-Tethyan Adriatic carbonate platform section of Hvar (Croatia) |
title_full |
Potential Cretaceous–Paleogene boundary tsunami deposit in the intra-Tethyan Adriatic carbonate platform section of Hvar (Croatia) |
title_fullStr |
Potential Cretaceous–Paleogene boundary tsunami deposit in the intra-Tethyan Adriatic carbonate platform section of Hvar (Croatia) |
title_full_unstemmed |
Potential Cretaceous–Paleogene boundary tsunami deposit in the intra-Tethyan Adriatic carbonate platform section of Hvar (Croatia) |
title_sort |
potential cretaceous–paleogene boundary tsunami deposit in the intra-tethyan adriatic carbonate platform section of hvar (croatia) |
publishDate |
2015 |
url |
http://hdl.handle.net/11576/2628433 https://doi.org/10.1130/B31084.1 |
genre |
North Atlantic Planktonic foraminifera |
genre_facet |
North Atlantic Planktonic foraminifera |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000364200700013 volume:127 issue:11/12 firstpage:1666 lastpage:1680 numberofpages:15 journal:GEOLOGICAL SOCIETY OF AMERICA BULLETIN http://hdl.handle.net/11576/2628433 doi:10.1130/B31084.1 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84948946173 |
op_doi |
https://doi.org/10.1130/B31084.1 |
container_title |
Geological Society of America Bulletin |
container_volume |
127 |
container_issue |
11-12 |
container_start_page |
1666 |
op_container_end_page |
1680 |
_version_ |
1796314639137505280 |