Pleistocene biogeochemical record in the SW Pacific Ocean (Images Site MD97-2114, Chatham Rise)
Through a multidisciplinary approach based on novel micropaleontological and geochemical analyses, the main paleoceanographic and paleoclimate changes that have influenced the surface- and deep-water circulation in the SW Pacific Ocean (Chatham Rise, eastern New Zealand) during the last million year...
Published in: | Journal of Quaternary Science |
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Language: | English |
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Online Access: | http://hdl.handle.net/11571/318114 https://doi.org/10.1002/jqs.2542 |
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ftunivpavia:oai:iris.unipv.it:11571/318114 2024-04-14T08:03:08+00:00 Pleistocene biogeochemical record in the SW Pacific Ocean (Images Site MD97-2114, Chatham Rise) COBIANCHI, MIRIAM LUPI, CLAUDIA MANCIN, NICOLETTA TRATTENERO, IACOPO BORDIGA, MANUELA Luciani Valeria Lirer Fabrizio Pelosi Nicola Hall Ian Sprovieri Mario Cobianchi, Miriam Luciani, Valeria Lupi, Claudia Mancin, Nicoletta Lirer, Fabrizio Pelosi, Nicola Trattenero, Iacopo Bordiga, Manuela Hall, Ian Sprovieri, Mario 2012 STAMPA http://hdl.handle.net/11571/318114 https://doi.org/10.1002/jqs.2542 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000305967000009 volume:27 issue:5 firstpage:519 lastpage:530 numberofpages:12 journal:JOURNAL OF QUATERNARY SCIENCE http://hdl.handle.net/11571/318114 doi:10.1002/jqs.2542 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84863493007 info:eu-repo/semantics/article 2012 ftunivpavia https://doi.org/10.1002/jqs.2542 2024-03-21T16:01:31Z Through a multidisciplinary approach based on novel micropaleontological and geochemical analyses, the main paleoceanographic and paleoclimate changes that have influenced the surface- and deep-water circulation in the SW Pacific Ocean (Chatham Rise, eastern New Zealand) during the last million years are reconstructed. This region represents a key area for investigating the climate evolution during the Pleistocene because here the largely wind-driven Antarctic Circumpolar Current interacts with the west Pacific Ocean circulation via the Deep Western Boundary Current, the major source of deep water for the whole Pacific Ocean. To understand coupling or decoupling events between sea surface and bottom waters, a continuous marine sedimentary succession since 1.1 Ma, recovered by the IMAGES (International Marine Past Global Change Study) cruise in the SW Pacific Ocean (Core MD97-2114), has been investigated based on calcareous planktonic and benthic microfossil content and C and O isotope record performed on planktonic and benthic foraminiferal tests. Results show the occurrence of long- and short-term patterns of climate and ocean circulation in the last million years as the result of the interplay of ice-sheet dynamics, surface tropical versus polar water inflow, and trophic status of the surface water. Article in Journal/Newspaper Antarc* Antarctic Ice Sheet IRIS UNIPV (Università degli studi di Pavia) Antarctic New Zealand Pacific Journal of Quaternary Science 27 5 519 530 |
institution |
Open Polar |
collection |
IRIS UNIPV (Università degli studi di Pavia) |
op_collection_id |
ftunivpavia |
language |
English |
description |
Through a multidisciplinary approach based on novel micropaleontological and geochemical analyses, the main paleoceanographic and paleoclimate changes that have influenced the surface- and deep-water circulation in the SW Pacific Ocean (Chatham Rise, eastern New Zealand) during the last million years are reconstructed. This region represents a key area for investigating the climate evolution during the Pleistocene because here the largely wind-driven Antarctic Circumpolar Current interacts with the west Pacific Ocean circulation via the Deep Western Boundary Current, the major source of deep water for the whole Pacific Ocean. To understand coupling or decoupling events between sea surface and bottom waters, a continuous marine sedimentary succession since 1.1 Ma, recovered by the IMAGES (International Marine Past Global Change Study) cruise in the SW Pacific Ocean (Core MD97-2114), has been investigated based on calcareous planktonic and benthic microfossil content and C and O isotope record performed on planktonic and benthic foraminiferal tests. Results show the occurrence of long- and short-term patterns of climate and ocean circulation in the last million years as the result of the interplay of ice-sheet dynamics, surface tropical versus polar water inflow, and trophic status of the surface water. |
author2 |
Cobianchi, Miriam Luciani, Valeria Lupi, Claudia Mancin, Nicoletta Lirer, Fabrizio Pelosi, Nicola Trattenero, Iacopo Bordiga, Manuela Hall, Ian Sprovieri, Mario |
format |
Article in Journal/Newspaper |
author |
COBIANCHI, MIRIAM LUPI, CLAUDIA MANCIN, NICOLETTA TRATTENERO, IACOPO BORDIGA, MANUELA Luciani Valeria Lirer Fabrizio Pelosi Nicola Hall Ian Sprovieri Mario |
spellingShingle |
COBIANCHI, MIRIAM LUPI, CLAUDIA MANCIN, NICOLETTA TRATTENERO, IACOPO BORDIGA, MANUELA Luciani Valeria Lirer Fabrizio Pelosi Nicola Hall Ian Sprovieri Mario Pleistocene biogeochemical record in the SW Pacific Ocean (Images Site MD97-2114, Chatham Rise) |
author_facet |
COBIANCHI, MIRIAM LUPI, CLAUDIA MANCIN, NICOLETTA TRATTENERO, IACOPO BORDIGA, MANUELA Luciani Valeria Lirer Fabrizio Pelosi Nicola Hall Ian Sprovieri Mario |
author_sort |
COBIANCHI, MIRIAM |
title |
Pleistocene biogeochemical record in the SW Pacific Ocean (Images Site MD97-2114, Chatham Rise) |
title_short |
Pleistocene biogeochemical record in the SW Pacific Ocean (Images Site MD97-2114, Chatham Rise) |
title_full |
Pleistocene biogeochemical record in the SW Pacific Ocean (Images Site MD97-2114, Chatham Rise) |
title_fullStr |
Pleistocene biogeochemical record in the SW Pacific Ocean (Images Site MD97-2114, Chatham Rise) |
title_full_unstemmed |
Pleistocene biogeochemical record in the SW Pacific Ocean (Images Site MD97-2114, Chatham Rise) |
title_sort |
pleistocene biogeochemical record in the sw pacific ocean (images site md97-2114, chatham rise) |
publishDate |
2012 |
url |
http://hdl.handle.net/11571/318114 https://doi.org/10.1002/jqs.2542 |
geographic |
Antarctic New Zealand Pacific |
geographic_facet |
Antarctic New Zealand Pacific |
genre |
Antarc* Antarctic Ice Sheet |
genre_facet |
Antarc* Antarctic Ice Sheet |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000305967000009 volume:27 issue:5 firstpage:519 lastpage:530 numberofpages:12 journal:JOURNAL OF QUATERNARY SCIENCE http://hdl.handle.net/11571/318114 doi:10.1002/jqs.2542 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84863493007 |
op_doi |
https://doi.org/10.1002/jqs.2542 |
container_title |
Journal of Quaternary Science |
container_volume |
27 |
container_issue |
5 |
container_start_page |
519 |
op_container_end_page |
530 |
_version_ |
1796298703126921216 |