Reconstructed paleo-oxygen concentration, stable isotope measurements and Gaussian interpolated Δδ13C obtained from the IODP Site 339-U1385 for the past 1.5 Ma, including trace element analyses and Uvigerina spp. abundance over MIS 27-21
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| Format: | Dataset Open Access |
| Sprache: | en |
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PANGAEA
2022
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| _version_ | 1867168575694831616 |
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| author | Thomas, Nicola C Bradbury, Harold J Hodell, David A |
| author_facet | Thomas, Nicola C Bradbury, Harold J Hodell, David A |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | The dataset compiles reconstructed changes in deep-water oxygen concentration for the past 1.5 Ma using stable carbon isotope measurements of benthic foraminifer: the epibenthic Cibicidoidies wuellerstorfi and the infaunal Globobulimina affinis, obtained from the International Ocean Discovery Program (IODP) Site 339-U1385 along the Iberian Margin (Northeast Atlantic; 2578 mbsl). The dataset covers the Middle Pleistocene Transition (MPT) and has a mean sampling frequency of ~290 yrs. Changes in North Atlantic deep-water oxygenation for the past 1.5 Ma reveal a significant (>40 µmol/kg) reduction in glacial deep-water oxygen concentration at ~960 ka suggesting increased storage of respired carbon, which is consistent with a drawdown of glacial atmospheric pCO2 values. The dataset includes the following records obtained from the IODP Site 339-U1385: reconstructed oxygen concentration and stable isotope measurements for the past 1.5 Ma; paired sample data focussed on the MIS 27-21 interval including measurements for oxygen concentration, stable isotopes, U/Ca, U/Mn, carbon isotope gradients for both C. wuellerstorfi-G. affinis and C. wuellerstorfi-Uvigerina peregrina, as well as Uvigerina spp. abundance; Ba/Al data; Core-top data for a pilot study transect through Shackleton Site stations; and Gaussian Interpolated data for the carbon isotope gradient between C. wuellerstorfi-G. affinis from this study combined with Iberian Margin Site MD95-2042 data of Hoogakker et al. (2015; doi:10.1038/ngeo2317) for the last 160 ka data. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_945872 |
| institution | PANGAEA |
| language | en |
| publishDate | 2022 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Reconstructed paleo-oxygen concentration, stable isotope measurements and Gaussian interpolated Δδ13C obtained from the IODP Site 339-U1385 for the past 1.5 Ma, including trace element analyses and Uvigerina spp. abundance over MIS 27-21 Thomas, Nicola C Bradbury, Harold J Hodell, David A Biological pump; Ice core; Inorganic carbon storage; MPT; Oxygen concentration The dataset compiles reconstructed changes in deep-water oxygen concentration for the past 1.5 Ma using stable carbon isotope measurements of benthic foraminifer: the epibenthic Cibicidoidies wuellerstorfi and the infaunal Globobulimina affinis, obtained from the International Ocean Discovery Program (IODP) Site 339-U1385 along the Iberian Margin (Northeast Atlantic; 2578 mbsl). The dataset covers the Middle Pleistocene Transition (MPT) and has a mean sampling frequency of ~290 yrs. Changes in North Atlantic deep-water oxygenation for the past 1.5 Ma reveal a significant (>40 µmol/kg) reduction in glacial deep-water oxygen concentration at ~960 ka suggesting increased storage of respired carbon, which is consistent with a drawdown of glacial atmospheric pCO2 values. The dataset includes the following records obtained from the IODP Site 339-U1385: reconstructed oxygen concentration and stable isotope measurements for the past 1.5 Ma; paired sample data focussed on the MIS 27-21 interval including measurements for oxygen concentration, stable isotopes, U/Ca, U/Mn, carbon isotope gradients for both C. wuellerstorfi-G. affinis and C. wuellerstorfi-Uvigerina peregrina, as well as Uvigerina spp. abundance; Ba/Al data; Core-top data for a pilot study transect through Shackleton Site stations; and Gaussian Interpolated data for the carbon isotope gradient between C. wuellerstorfi-G. affinis from this study combined with Iberian Margin Site MD95-2042 data of Hoogakker et al. (2015; doi:10.1038/ngeo2317) for the last 160 ka data. |
| title | Reconstructed paleo-oxygen concentration, stable isotope measurements and Gaussian interpolated Δδ13C obtained from the IODP Site 339-U1385 for the past 1.5 Ma, including trace element analyses and Uvigerina spp. abundance over MIS 27-21 |
| topic | Biological pump; Ice core; Inorganic carbon storage; MPT; Oxygen concentration |
| url | https://doi.org/10.1594/PANGAEA.945872 |