Pliocene sapropels in Northern Adriatic area: chronology and paleoenvironmental significance
A detailed stratigraphic and paleoenvironmental study was carried out on a marine section from the Marecchia Valley in the Northern Apennines. The section consists predominantly of deep-water hemipelagic clays intercalated with 15 thick, laminated sapropels (M1-M15). Based on biostratigraphic (calca...
Published in: | Palaeogeography, Palaeoclimatology, Palaeoecology |
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Elsevier BV:PO Box 211, 1000 AE Amsterdam Netherlands:011 31 20 4853757, 011 31 20 4853642, 011 31 20 4853641, EMAIL: nlinfo-f@elsevier.nl, INTERNET: http://www.elsevier.nl, Fax: 011 31 20 4853598
1997
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Online Access: | http://hdl.handle.net/11577/113640 https://doi.org/10.1016/S0031-0182(97)00027-8 |
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ftunivpadovairis:oai:www.research.unipd.it:11577/113640 2024-02-27T08:44:39+00:00 Pliocene sapropels in Northern Adriatic area: chronology and paleoenvironmental significance RIO, DOMENICO CHANNEL J. E. T. BERTOLDI R. POLI M. S. VERGERIO P. P. RAFFI I. SPROVIERI R. THUNELL R. C. Rio, Domenico Channel, J. E. T. Bertoldi, R. Poli, M. S. Vergerio, P. P. Raffi, I. Sprovieri, R. Thunell, R. C. 1997 STAMPA http://hdl.handle.net/11577/113640 https://doi.org/10.1016/S0031-0182(97)00027-8 eng eng Elsevier BV:PO Box 211, 1000 AE Amsterdam Netherlands:011 31 20 4853757, 011 31 20 4853642, 011 31 20 4853641, EMAIL: nlinfo-f@elsevier.nl, INTERNET: http://www.elsevier.nl, Fax: 011 31 20 4853598 volume:135 firstpage:1 lastpage:25 numberofpages:25 journal:PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY http://hdl.handle.net/11577/113640 doi:10.1016/S0031-0182(97)00027-8 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0031453388 Mediterranean region Paleoclimatology Pliocene Stratigraphy info:eu-repo/semantics/article 1997 ftunivpadovairis https://doi.org/10.1016/S0031-0182(97)00027-8 2024-01-31T17:34:47Z A detailed stratigraphic and paleoenvironmental study was carried out on a marine section from the Marecchia Valley in the Northern Apennines. The section consists predominantly of deep-water hemipelagic clays intercalated with 15 thick, laminated sapropels (M1-M15). Based on biostratigraphic (calcareous nannoplankton and planktonic foraminifera) and magnetostratigraphic results, the Marecchia Valley section is interpreted as being middle to late Pliocene in age, extending from the upper part of the Gauss Chron to the lower part of the Matuyama Chron. The high resolution stratigraphy allows us to correlate, for the first time, these northern Italian sapropels with sapropels previously described from the southern Mediterranean region. Based on this long-distance correlation, we conclude that the sapropels from throughout the Mediterranean have a common origin that is related to astronomical forcing. Specifically, these Pliocene sapropels are related to wet climatic conditions in the Mediterranean and surrounding borderlands and are linked to precession minima which are times of increased precipitation. This is consistent with our pollen data, which indicate that very wet conditions existed during sapropel formation. Additionally, the planktonic and benthic foraminiferal assemblages associated with sapropels indicate that these were periods marked by high surface productivity and low bottom water oxygen. Article in Journal/Newspaper Planktonic foraminifera Padua Research Archive (IRIS - Università degli Studi di Padova) Palaeogeography, Palaeoclimatology, Palaeoecology 135 1-4 1 25 |
institution |
Open Polar |
collection |
Padua Research Archive (IRIS - Università degli Studi di Padova) |
op_collection_id |
ftunivpadovairis |
language |
English |
topic |
Mediterranean region Paleoclimatology Pliocene Stratigraphy |
spellingShingle |
Mediterranean region Paleoclimatology Pliocene Stratigraphy RIO, DOMENICO CHANNEL J. E. T. BERTOLDI R. POLI M. S. VERGERIO P. P. RAFFI I. SPROVIERI R. THUNELL R. C. Pliocene sapropels in Northern Adriatic area: chronology and paleoenvironmental significance |
topic_facet |
Mediterranean region Paleoclimatology Pliocene Stratigraphy |
description |
A detailed stratigraphic and paleoenvironmental study was carried out on a marine section from the Marecchia Valley in the Northern Apennines. The section consists predominantly of deep-water hemipelagic clays intercalated with 15 thick, laminated sapropels (M1-M15). Based on biostratigraphic (calcareous nannoplankton and planktonic foraminifera) and magnetostratigraphic results, the Marecchia Valley section is interpreted as being middle to late Pliocene in age, extending from the upper part of the Gauss Chron to the lower part of the Matuyama Chron. The high resolution stratigraphy allows us to correlate, for the first time, these northern Italian sapropels with sapropels previously described from the southern Mediterranean region. Based on this long-distance correlation, we conclude that the sapropels from throughout the Mediterranean have a common origin that is related to astronomical forcing. Specifically, these Pliocene sapropels are related to wet climatic conditions in the Mediterranean and surrounding borderlands and are linked to precession minima which are times of increased precipitation. This is consistent with our pollen data, which indicate that very wet conditions existed during sapropel formation. Additionally, the planktonic and benthic foraminiferal assemblages associated with sapropels indicate that these were periods marked by high surface productivity and low bottom water oxygen. |
author2 |
Rio, Domenico Channel, J. E. T. Bertoldi, R. Poli, M. S. Vergerio, P. P. Raffi, I. Sprovieri, R. Thunell, R. C. |
format |
Article in Journal/Newspaper |
author |
RIO, DOMENICO CHANNEL J. E. T. BERTOLDI R. POLI M. S. VERGERIO P. P. RAFFI I. SPROVIERI R. THUNELL R. C. |
author_facet |
RIO, DOMENICO CHANNEL J. E. T. BERTOLDI R. POLI M. S. VERGERIO P. P. RAFFI I. SPROVIERI R. THUNELL R. C. |
author_sort |
RIO, DOMENICO |
title |
Pliocene sapropels in Northern Adriatic area: chronology and paleoenvironmental significance |
title_short |
Pliocene sapropels in Northern Adriatic area: chronology and paleoenvironmental significance |
title_full |
Pliocene sapropels in Northern Adriatic area: chronology and paleoenvironmental significance |
title_fullStr |
Pliocene sapropels in Northern Adriatic area: chronology and paleoenvironmental significance |
title_full_unstemmed |
Pliocene sapropels in Northern Adriatic area: chronology and paleoenvironmental significance |
title_sort |
pliocene sapropels in northern adriatic area: chronology and paleoenvironmental significance |
publisher |
Elsevier BV:PO Box 211, 1000 AE Amsterdam Netherlands:011 31 20 4853757, 011 31 20 4853642, 011 31 20 4853641, EMAIL: nlinfo-f@elsevier.nl, INTERNET: http://www.elsevier.nl, Fax: 011 31 20 4853598 |
publishDate |
1997 |
url |
http://hdl.handle.net/11577/113640 https://doi.org/10.1016/S0031-0182(97)00027-8 |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_relation |
volume:135 firstpage:1 lastpage:25 numberofpages:25 journal:PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY http://hdl.handle.net/11577/113640 doi:10.1016/S0031-0182(97)00027-8 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0031453388 |
op_doi |
https://doi.org/10.1016/S0031-0182(97)00027-8 |
container_title |
Palaeogeography, Palaeoclimatology, Palaeoecology |
container_volume |
135 |
container_issue |
1-4 |
container_start_page |
1 |
op_container_end_page |
25 |
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1792053130255400960 |