(Table S1) Stable carbon and oxygen isotopes and Mg/Ca ratios of planktonic foraminifera from ODP Hole 198-1209B
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
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PANGAEA
2003
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| _version_ | 1867170917073813504 |
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| author | Zachos, James C Wara, Michael W Bohaty, Steven M Delaney, Margaret Lois Petrizzo, Maria Rose Brill, Amanda Bralower, Timothy J Premoli Silva, Isabella |
| author_facet | Zachos, James C Wara, Michael W Bohaty, Steven M Delaney, Margaret Lois Petrizzo, Maria Rose Brill, Amanda Bralower, Timothy J Premoli Silva, Isabella |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | The Paleocene-Eocene Thermal Maximum (PETM) has been attributed to a rapid rise in greenhouse gas levels. If so, warming should have occurred at all latitudes, although amplified toward the poles. Existing records reveal an increase in high-latitude sea surface temperatures (SSTs) (8° to 10°C) and in bottom water temperatures (4° to 5°C). To date, however, the character of the tropical SST response during this event remains unconstrained. Here we address this deficiency by using paired oxygen isotope and minor element (magnesium/calcium) ratios of planktonic foraminifera from a tropical Pacific core to estimate changes in SST. Using mixed-layer foraminifera, we found that the combined proxies imply a 4° to 5°C rise in Pacific SST during the PETM. These results would necessitate a rise in atmospheric pCO2 to levels three to four times as high as those estimated for the late Paleocene. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_772090 |
| institution | PANGAEA |
| language | en |
| publishDate | 2003 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | (Table S1) Stable carbon and oxygen isotopes and Mg/Ca ratios of planktonic foraminifera from ODP Hole 198-1209B Zachos, James C Wara, Michael W Bohaty, Steven M Delaney, Margaret Lois Petrizzo, Maria Rose Brill, Amanda Bralower, Timothy J Premoli Silva, Isabella 198-1209B; Acarinina soldadoensis, Magnesium/Calcium ratio; Acarinina soldadoensis, δ13C; Acarinina soldadoensis, δ18O; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Joides Resolution; Leg198; Morozovella velascoensis, Magnesium/Calcium ratio; Morozovella velascoensis, δ13C; Morozovella velascoensis, δ18O; North Pacific Ocean; Ocean Drilling Program; ODP; Sample code/label The Paleocene-Eocene Thermal Maximum (PETM) has been attributed to a rapid rise in greenhouse gas levels. If so, warming should have occurred at all latitudes, although amplified toward the poles. Existing records reveal an increase in high-latitude sea surface temperatures (SSTs) (8° to 10°C) and in bottom water temperatures (4° to 5°C). To date, however, the character of the tropical SST response during this event remains unconstrained. Here we address this deficiency by using paired oxygen isotope and minor element (magnesium/calcium) ratios of planktonic foraminifera from a tropical Pacific core to estimate changes in SST. Using mixed-layer foraminifera, we found that the combined proxies imply a 4° to 5°C rise in Pacific SST during the PETM. These results would necessitate a rise in atmospheric pCO2 to levels three to four times as high as those estimated for the late Paleocene. |
| title | (Table S1) Stable carbon and oxygen isotopes and Mg/Ca ratios of planktonic foraminifera from ODP Hole 198-1209B |
| topic | 198-1209B; Acarinina soldadoensis, Magnesium/Calcium ratio; Acarinina soldadoensis, δ13C; Acarinina soldadoensis, δ18O; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Joides Resolution; Leg198; Morozovella velascoensis, Magnesium/Calcium ratio; Morozovella velascoensis, δ13C; Morozovella velascoensis, δ18O; North Pacific Ocean; Ocean Drilling Program; ODP; Sample code/label |
| url | https://doi.org/10.1594/PANGAEA.772090 |