B- and O-isotope and Mg/Ca ratios of planktonic foraminifera and estimates of salinity, alkalinity and pCO2 for ODP Hole 108-668B (Table 1) ...
The dominant period of Pleistocene glacial cycles changed during the mid-Pleistocene from 40,000 years to 100,000 years, for as yet unknown reasons. Here we present a 2.1-million-year record of sea surface partial pressure of CO2 (PCO2), based on boron isotopes in planktic foraminifer shells, which...
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ftdatacite:10.1594/pangaea.721741 2024-09-30T14:41:33+00:00 B- and O-isotope and Mg/Ca ratios of planktonic foraminifera and estimates of salinity, alkalinity and pCO2 for ODP Hole 108-668B (Table 1) ... Hönisch, Bärbel Hemming, N Gary Archer, David E Siddall, Mark McManus, Jerry F 2009 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.721741 https://doi.pangaea.de/10.1594/PANGAEA.721741 en eng PANGAEA https://dx.doi.org/10.1126/science.1171477 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 AGE Sample code/label Globigerinoides ruber white, δ18O δ11B Comment pH Error, absolute Globigerinoides ruber white, Magnesium/Calcium ratio Sea surface temperature, annual mean Salinity Alkalinity, total Partial pressure of carbon dioxide water at sea surface temperature wet air Partial pressure of carbon dioxide, standard deviation Drilling/drill rig DSDP/ODP/IODP sample designation Calculated Inductively coupled plasma atomic emission spectroscope ICP-AES Calculated from Mg/Ca ratios Leg108 Joides Resolution Ocean Drilling Program ODP Supplementary Dataset Dataset dataset 2009 ftdatacite https://doi.org/10.1594/pangaea.72174110.1126/science.1171477 2024-09-02T08:39:34Z The dominant period of Pleistocene glacial cycles changed during the mid-Pleistocene from 40,000 years to 100,000 years, for as yet unknown reasons. Here we present a 2.1-million-year record of sea surface partial pressure of CO2 (PCO2), based on boron isotopes in planktic foraminifer shells, which suggests that the atmospheric partial pressure of CO2 (pCO2) was relatively stable before the mid-Pleistocene climate transition. Glacial PCO2 was ~31 microatmospheres higher before the transition (more than 1 million years ago), but interglacial PCO2 was similar to that of late Pleistocene interglacial cycles (<450,000 years ago). These estimates are consistent with a close linkage between atmospheric CO2 concentration and global climate, but the lack of a gradual decrease in interglacial PCO2 does not support the suggestion that a long-term drawdown of atmospheric CO2 was the main cause of the climate transition. ... : Supplement to: Hönisch, Bärbel; Hemming, N Gary; Archer, David E; Siddall, Mark; McManus, Jerry F (2009): Atmospheric Carbon Dioxide Concentration Across the Mid-Pleistocene Transition. Science, 324(5934), 1551-1554 ... Dataset Planktonic foraminifera DataCite Archer ENVELOPE(162.867,162.867,-76.850,-76.850) |
institution |
Open Polar |
collection |
DataCite |
op_collection_id |
ftdatacite |
language |
English |
topic |
AGE Sample code/label Globigerinoides ruber white, δ18O δ11B Comment pH Error, absolute Globigerinoides ruber white, Magnesium/Calcium ratio Sea surface temperature, annual mean Salinity Alkalinity, total Partial pressure of carbon dioxide water at sea surface temperature wet air Partial pressure of carbon dioxide, standard deviation Drilling/drill rig DSDP/ODP/IODP sample designation Calculated Inductively coupled plasma atomic emission spectroscope ICP-AES Calculated from Mg/Ca ratios Leg108 Joides Resolution Ocean Drilling Program ODP |
spellingShingle |
AGE Sample code/label Globigerinoides ruber white, δ18O δ11B Comment pH Error, absolute Globigerinoides ruber white, Magnesium/Calcium ratio Sea surface temperature, annual mean Salinity Alkalinity, total Partial pressure of carbon dioxide water at sea surface temperature wet air Partial pressure of carbon dioxide, standard deviation Drilling/drill rig DSDP/ODP/IODP sample designation Calculated Inductively coupled plasma atomic emission spectroscope ICP-AES Calculated from Mg/Ca ratios Leg108 Joides Resolution Ocean Drilling Program ODP Hönisch, Bärbel Hemming, N Gary Archer, David E Siddall, Mark McManus, Jerry F B- and O-isotope and Mg/Ca ratios of planktonic foraminifera and estimates of salinity, alkalinity and pCO2 for ODP Hole 108-668B (Table 1) ... |
topic_facet |
AGE Sample code/label Globigerinoides ruber white, δ18O δ11B Comment pH Error, absolute Globigerinoides ruber white, Magnesium/Calcium ratio Sea surface temperature, annual mean Salinity Alkalinity, total Partial pressure of carbon dioxide water at sea surface temperature wet air Partial pressure of carbon dioxide, standard deviation Drilling/drill rig DSDP/ODP/IODP sample designation Calculated Inductively coupled plasma atomic emission spectroscope ICP-AES Calculated from Mg/Ca ratios Leg108 Joides Resolution Ocean Drilling Program ODP |
description |
The dominant period of Pleistocene glacial cycles changed during the mid-Pleistocene from 40,000 years to 100,000 years, for as yet unknown reasons. Here we present a 2.1-million-year record of sea surface partial pressure of CO2 (PCO2), based on boron isotopes in planktic foraminifer shells, which suggests that the atmospheric partial pressure of CO2 (pCO2) was relatively stable before the mid-Pleistocene climate transition. Glacial PCO2 was ~31 microatmospheres higher before the transition (more than 1 million years ago), but interglacial PCO2 was similar to that of late Pleistocene interglacial cycles (<450,000 years ago). These estimates are consistent with a close linkage between atmospheric CO2 concentration and global climate, but the lack of a gradual decrease in interglacial PCO2 does not support the suggestion that a long-term drawdown of atmospheric CO2 was the main cause of the climate transition. ... : Supplement to: Hönisch, Bärbel; Hemming, N Gary; Archer, David E; Siddall, Mark; McManus, Jerry F (2009): Atmospheric Carbon Dioxide Concentration Across the Mid-Pleistocene Transition. Science, 324(5934), 1551-1554 ... |
format |
Dataset |
author |
Hönisch, Bärbel Hemming, N Gary Archer, David E Siddall, Mark McManus, Jerry F |
author_facet |
Hönisch, Bärbel Hemming, N Gary Archer, David E Siddall, Mark McManus, Jerry F |
author_sort |
Hönisch, Bärbel |
title |
B- and O-isotope and Mg/Ca ratios of planktonic foraminifera and estimates of salinity, alkalinity and pCO2 for ODP Hole 108-668B (Table 1) ... |
title_short |
B- and O-isotope and Mg/Ca ratios of planktonic foraminifera and estimates of salinity, alkalinity and pCO2 for ODP Hole 108-668B (Table 1) ... |
title_full |
B- and O-isotope and Mg/Ca ratios of planktonic foraminifera and estimates of salinity, alkalinity and pCO2 for ODP Hole 108-668B (Table 1) ... |
title_fullStr |
B- and O-isotope and Mg/Ca ratios of planktonic foraminifera and estimates of salinity, alkalinity and pCO2 for ODP Hole 108-668B (Table 1) ... |
title_full_unstemmed |
B- and O-isotope and Mg/Ca ratios of planktonic foraminifera and estimates of salinity, alkalinity and pCO2 for ODP Hole 108-668B (Table 1) ... |
title_sort |
b- and o-isotope and mg/ca ratios of planktonic foraminifera and estimates of salinity, alkalinity and pco2 for odp hole 108-668b (table 1) ... |
publisher |
PANGAEA |
publishDate |
2009 |
url |
https://dx.doi.org/10.1594/pangaea.721741 https://doi.pangaea.de/10.1594/PANGAEA.721741 |
long_lat |
ENVELOPE(162.867,162.867,-76.850,-76.850) |
geographic |
Archer |
geographic_facet |
Archer |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_relation |
https://dx.doi.org/10.1126/science.1171477 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_doi |
https://doi.org/10.1594/pangaea.72174110.1126/science.1171477 |
_version_ |
1811644021934653440 |