Stable isotope ratios of planktonic foraminifera from North Atlantic surface sediments
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| Natura: | Dataset Open Access |
| Lingua: | en |
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PANGAEA
2007
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| _version_ | 1867170972307554304 |
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| author | Cléroux, Caroline Cortijo, Elsa Duplessy, Jean-Claude Zahn, Rainer |
| author_facet | Cléroux, Caroline Cortijo, Elsa Duplessy, Jean-Claude Zahn, Rainer |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | We measured the oxygen isotopic composition of the deep-dwelling foraminiferal species G. inflata, G. truncatulinoides dextral and sinistral, and P. obliquiloculata in 29 modern core tops raised from the North Atlantic Ocean. We compared calculated isotopic temperatures with atlas temperatures and defined ecological models for each species. G. inflata and G. truncatulinoides live preferentially at the base of the seasonal thermocline. Under temperature stress, i.e., when the base of the seasonal thermocline is warmer than 16°C, G. inflata and G. truncatulinoides live deeper in the main thermocline. P. obliquiloculata inhabits the seasonal thermocline in warm regions. We tested our model using 10 cores along the Mauritanian upwelling and show that the comparison of d18O variations registered by the surficial species G. ruber and G. bulloides and the deep-dwelling species G. inflata evidences significant glacial-interglacial shifts of the Mauritanian upwelling cells. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_832181 |
| institution | PANGAEA |
| language | en |
| publishDate | 2007 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Stable isotope ratios of planktonic foraminifera from North Atlantic surface sediments Cléroux, Caroline Cortijo, Elsa Duplessy, Jean-Claude Zahn, Rainer 408US; Atlantic; Barra fan; BC; Blake Plateau, Atlantic Ocean; Box corer; Calculated from stable oxygen isotopes; CALYPSO; Calypso Corer; Cape Hateras; CHO288-54; DEPTH, sediment/rock; Elevation of event; Event label; F1KR02; F1KR10; F1KR11; F1KR12; F1KS39; F2KR01; F2KR07; FAEGAS; GC; Gibbs fracture; Globorotalia inflata, δ13C; Globorotalia inflata, δ18O; Globorotalia truncatulinoides dextral, δ13C; Globorotalia truncatulinoides dextral, δ18O; Globorotalia truncatulinoides sinistral, δ13C; Globorotalia truncatulinoides sinistral, δ18O; Grab; GRAB; Gravity corer; Iceland; IMAGES I; IMAGES IX - PAGE; IMAGES V; IMAGES XI - P.I.C.A.S.S.O.; INMD; INMD-042BX; INMD-048BX; INMD-052P; INMD-068BX; La Salle Basin; Latitude of event; Le Suroît; Longitude of event; Marion Dufresne (1995); Mass spectrometer Finnigan MAT 251; MD022549; MD02-2549; MD032649G; MD03-2649G; MD101__Campaign; MD114; MD127; MD132; MD952002; MD95-2002; MD952005; MD95-2005; MD952014; MD95-2014; MD952017; MD95-2017; MD952019; MD95-2019; MD952021; MD95-2021; MD952023; MD95-2023; MD952039; MD95-2039; MD952041; MD95-2041; MD99-2203; Melville; Meriadzec; Namoc; North Atlantic Ocean; PALEOCINAT; PC; Piston corer; Porto Seamount; Pulleniatina obliquiloculata, δ13C; Pulleniatina obliquiloculata, δ18O; Sea surface temperature, annual mean; Size fraction; SU90-02; SU90-03; SU90-06; SU90-08; SU90-37 We measured the oxygen isotopic composition of the deep-dwelling foraminiferal species G. inflata, G. truncatulinoides dextral and sinistral, and P. obliquiloculata in 29 modern core tops raised from the North Atlantic Ocean. We compared calculated isotopic temperatures with atlas temperatures and defined ecological models for each species. G. inflata and G. truncatulinoides live preferentially at the base of the seasonal thermocline. Under temperature stress, i.e., when the base of the seasonal thermocline is warmer than 16°C, G. inflata and G. truncatulinoides live deeper in the main thermocline. P. obliquiloculata inhabits the seasonal thermocline in warm regions. We tested our model using 10 cores along the Mauritanian upwelling and show that the comparison of d18O variations registered by the surficial species G. ruber and G. bulloides and the deep-dwelling species G. inflata evidences significant glacial-interglacial shifts of the Mauritanian upwelling cells. |
| title | Stable isotope ratios of planktonic foraminifera from North Atlantic surface sediments |
| topic | 408US; Atlantic; Barra fan; BC; Blake Plateau, Atlantic Ocean; Box corer; Calculated from stable oxygen isotopes; CALYPSO; Calypso Corer; Cape Hateras; CHO288-54; DEPTH, sediment/rock; Elevation of event; Event label; F1KR02; F1KR10; F1KR11; F1KR12; F1KS39; F2KR01; F2KR07; FAEGAS; GC; Gibbs fracture; Globorotalia inflata, δ13C; Globorotalia inflata, δ18O; Globorotalia truncatulinoides dextral, δ13C; Globorotalia truncatulinoides dextral, δ18O; Globorotalia truncatulinoides sinistral, δ13C; Globorotalia truncatulinoides sinistral, δ18O; Grab; GRAB; Gravity corer; Iceland; IMAGES I; IMAGES IX - PAGE; IMAGES V; IMAGES XI - P.I.C.A.S.S.O.; INMD; INMD-042BX; INMD-048BX; INMD-052P; INMD-068BX; La Salle Basin; Latitude of event; Le Suroît; Longitude of event; Marion Dufresne (1995); Mass spectrometer Finnigan MAT 251; MD022549; MD02-2549; MD032649G; MD03-2649G; MD101__Campaign; MD114; MD127; MD132; MD952002; MD95-2002; MD952005; MD95-2005; MD952014; MD95-2014; MD952017; MD95-2017; MD952019; MD95-2019; MD952021; MD95-2021; MD952023; MD95-2023; MD952039; MD95-2039; MD952041; MD95-2041; MD99-2203; Melville; Meriadzec; Namoc; North Atlantic Ocean; PALEOCINAT; PC; Piston corer; Porto Seamount; Pulleniatina obliquiloculata, δ13C; Pulleniatina obliquiloculata, δ18O; Sea surface temperature, annual mean; Size fraction; SU90-02; SU90-03; SU90-06; SU90-08; SU90-37 |
| url | https://doi.org/10.1594/PANGAEA.832181 |