Changes in Caribbean surface hydrography during the Pliocene shoaling of the Central American Seaway
Pliocene d18O records of shallow and deep dwelling planktonic foraminifers from the Caribbean (Ocean Drilling Program sites 999 and 1000), the tropical east Pacific (sites 1241 and 851), and the Atlantic (site 925, Ceara Rise, and site 1006, western Great Bahama Bank) were used to examine Atlantic-C...
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2006
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Online Access: | https://oceanrep.geomar.de/id/eprint/8224/ https://oceanrep.geomar.de/id/eprint/8224/1/124_Steph_2006_ChangesInCaribbeanSurfaceHydrography_Artzeit_pubid3493.pdf http://www.agu.org/pubs/crossref/2006/2004PA001092.shtml https://doi.org/10.1029/2004PA001092 |
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ftoceanrep:oai:oceanrep.geomar.de:8224 2023-05-15T17:33:27+02:00 Changes in Caribbean surface hydrography during the Pliocene shoaling of the Central American Seaway Steph, Silke Tiedemann, Ralf Prange, M. Groeneveld, Jeroen Nürnberg, Dirk Reuning, Lars Schulz, M. Haug, G.H. 2006 text https://oceanrep.geomar.de/id/eprint/8224/ https://oceanrep.geomar.de/id/eprint/8224/1/124_Steph_2006_ChangesInCaribbeanSurfaceHydrography_Artzeit_pubid3493.pdf http://www.agu.org/pubs/crossref/2006/2004PA001092.shtml https://doi.org/10.1029/2004PA001092 en eng AGU (American Geophysical Union) https://oceanrep.geomar.de/id/eprint/8224/1/124_Steph_2006_ChangesInCaribbeanSurfaceHydrography_Artzeit_pubid3493.pdf Steph, S., Tiedemann, R., Prange, M., Groeneveld, J., Nürnberg, D. , Reuning, L., Schulz, M. and Haug, G. H. (2006) Changes in Caribbean surface hydrography during the Pliocene shoaling of the Central American Seaway. Open Access Paleoceanography, 21 (PA4221). DOI 10.1029/2004PA001092 <https://doi.org/10.1029/2004PA001092>. doi:10.1029/2004PA001092 info:eu-repo/semantics/openAccess Article PeerReviewed 2006 ftoceanrep https://doi.org/10.1029/2004PA001092 2023-04-07T14:56:25Z Pliocene d18O records of shallow and deep dwelling planktonic foraminifers from the Caribbean (Ocean Drilling Program sites 999 and 1000), the tropical east Pacific (sites 1241 and 851), and the Atlantic (site 925, Ceara Rise, and site 1006, western Great Bahama Bank) were used to examine Atlantic-Caribbean-Pacific atmospheric and oceanic linkages associated with the progressive closure of the Central American Seaway (5.5–3 Ma). Comparisons indicate the development of an inner-Caribbean salinity gradient in the mixed layer and salinity changes on precessional periodicities after 4.4 Ma (site 1000), when the Pacific-Caribbean throughflow became significantly restricted. The high-amplitude variability in salinity is also observed at site 1006, monitoring the Caribbean outflow into the Atlantic. Comparisons of Caribbean and Atlantic planktonic d18O records suggest the North Atlantic subtropical gyre as a major source for high-salinity surface waters. Precession-induced variations in the volume transport of Pacific surface water masses through the Panamanian Seaway are considered a main factor to explain the Caribbean salinity minima. Results from a coupled climate model point to changes in the El Nin˜o–Southern Oscillation state as a potential trigger for changes in the amount of Pacific inflow into the Caribbean. Article in Journal/Newspaper North Atlantic OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Pacific Paleoceanography 21 4 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
Pliocene d18O records of shallow and deep dwelling planktonic foraminifers from the Caribbean (Ocean Drilling Program sites 999 and 1000), the tropical east Pacific (sites 1241 and 851), and the Atlantic (site 925, Ceara Rise, and site 1006, western Great Bahama Bank) were used to examine Atlantic-Caribbean-Pacific atmospheric and oceanic linkages associated with the progressive closure of the Central American Seaway (5.5–3 Ma). Comparisons indicate the development of an inner-Caribbean salinity gradient in the mixed layer and salinity changes on precessional periodicities after 4.4 Ma (site 1000), when the Pacific-Caribbean throughflow became significantly restricted. The high-amplitude variability in salinity is also observed at site 1006, monitoring the Caribbean outflow into the Atlantic. Comparisons of Caribbean and Atlantic planktonic d18O records suggest the North Atlantic subtropical gyre as a major source for high-salinity surface waters. Precession-induced variations in the volume transport of Pacific surface water masses through the Panamanian Seaway are considered a main factor to explain the Caribbean salinity minima. Results from a coupled climate model point to changes in the El Nin˜o–Southern Oscillation state as a potential trigger for changes in the amount of Pacific inflow into the Caribbean. |
format |
Article in Journal/Newspaper |
author |
Steph, Silke Tiedemann, Ralf Prange, M. Groeneveld, Jeroen Nürnberg, Dirk Reuning, Lars Schulz, M. Haug, G.H. |
spellingShingle |
Steph, Silke Tiedemann, Ralf Prange, M. Groeneveld, Jeroen Nürnberg, Dirk Reuning, Lars Schulz, M. Haug, G.H. Changes in Caribbean surface hydrography during the Pliocene shoaling of the Central American Seaway |
author_facet |
Steph, Silke Tiedemann, Ralf Prange, M. Groeneveld, Jeroen Nürnberg, Dirk Reuning, Lars Schulz, M. Haug, G.H. |
author_sort |
Steph, Silke |
title |
Changes in Caribbean surface hydrography during the Pliocene shoaling of the Central American Seaway |
title_short |
Changes in Caribbean surface hydrography during the Pliocene shoaling of the Central American Seaway |
title_full |
Changes in Caribbean surface hydrography during the Pliocene shoaling of the Central American Seaway |
title_fullStr |
Changes in Caribbean surface hydrography during the Pliocene shoaling of the Central American Seaway |
title_full_unstemmed |
Changes in Caribbean surface hydrography during the Pliocene shoaling of the Central American Seaway |
title_sort |
changes in caribbean surface hydrography during the pliocene shoaling of the central american seaway |
publisher |
AGU (American Geophysical Union) |
publishDate |
2006 |
url |
https://oceanrep.geomar.de/id/eprint/8224/ https://oceanrep.geomar.de/id/eprint/8224/1/124_Steph_2006_ChangesInCaribbeanSurfaceHydrography_Artzeit_pubid3493.pdf http://www.agu.org/pubs/crossref/2006/2004PA001092.shtml https://doi.org/10.1029/2004PA001092 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://oceanrep.geomar.de/id/eprint/8224/1/124_Steph_2006_ChangesInCaribbeanSurfaceHydrography_Artzeit_pubid3493.pdf Steph, S., Tiedemann, R., Prange, M., Groeneveld, J., Nürnberg, D. , Reuning, L., Schulz, M. and Haug, G. H. (2006) Changes in Caribbean surface hydrography during the Pliocene shoaling of the Central American Seaway. Open Access Paleoceanography, 21 (PA4221). DOI 10.1029/2004PA001092 <https://doi.org/10.1029/2004PA001092>. doi:10.1029/2004PA001092 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2004PA001092 |
container_title |
Paleoceanography |
container_volume |
21 |
container_issue |
4 |
_version_ |
1766131971586523136 |