(Table 1) Stable oxygen isotope ratios of planktonic foraminifera in Carribean core top samples and calculated habitat depth
Fuente:
PANGAEA
Salvato in:
| Autori principali: | , , , , , , , |
|---|---|
| Natura: | Dataset Open Access |
| Lingua: | en |
| Pubblicazione: |
PANGAEA
2014
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1867170972953477120 |
|---|---|
| author | Steph, Silke Tiedemann, Ralf Prange, Matthias Groeneveld, Jeroen Nürnberg, Dirk Reuning, Lars Schulz, Michael Haug, Gerald H |
| author_facet | Steph, Silke Tiedemann, Ralf Prange, Matthias Groeneveld, Jeroen Nürnberg, Dirk Reuning, Lars Schulz, Michael Haug, Gerald H |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | 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 Niño-Southern Oscillation state as a potential trigger for changes in the amount of Pacific inflow into the Caribbean. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_833686 |
| institution | PANGAEA |
| language | en |
| publishDate | 2014 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | (Table 1) Stable oxygen isotope ratios of planktonic foraminifera in Carribean core top samples and calculated habitat depth Steph, Silke Tiedemann, Ralf Prange, Matthias Groeneveld, Jeroen Nürnberg, Dirk Reuning, Lars Schulz, Michael Haug, Gerald H Aves Ridge; AWI_Paleo; Bahamas; Beata Ridge; Calculated; Columbia Basin; DEPTH, sediment/rock; Elevation of event; Event label; Globigerinoides sacculifer, δ18O; Globorotalia crassaformis, δ18O; Guadeloupe; Habitat depth; Latitude of event; Longitude of event; Martinique; Mass spectrometer, Finnigan, MAT 252; MUC; MultiCorer; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; RASTA/GOLDFLOS; SO164; SO164-01-3; SO164-02-3; SO164-03-3; SO164-04-2; SO164-07-3; SO164-19-3; SO164-20-2; SO164-21-3; SO164-22-2; SO164-23-3; SO164-24-3; SO164-25-3; SO164-48-2; SO164-50-3; Sonne; Venezuela Basin 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 Niño-Southern Oscillation state as a potential trigger for changes in the amount of Pacific inflow into the Caribbean. |
| title | (Table 1) Stable oxygen isotope ratios of planktonic foraminifera in Carribean core top samples and calculated habitat depth |
| topic | Aves Ridge; AWI_Paleo; Bahamas; Beata Ridge; Calculated; Columbia Basin; DEPTH, sediment/rock; Elevation of event; Event label; Globigerinoides sacculifer, δ18O; Globorotalia crassaformis, δ18O; Guadeloupe; Habitat depth; Latitude of event; Longitude of event; Martinique; Mass spectrometer, Finnigan, MAT 252; MUC; MultiCorer; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; RASTA/GOLDFLOS; SO164; SO164-01-3; SO164-02-3; SO164-03-3; SO164-04-2; SO164-07-3; SO164-19-3; SO164-20-2; SO164-21-3; SO164-22-2; SO164-23-3; SO164-24-3; SO164-25-3; SO164-48-2; SO164-50-3; Sonne; Venezuela Basin |
| url | https://doi.org/10.1594/PANGAEA.833686 |