B-isotope and Mg/Ca ratios of planktonic foraminifera from ODP Hole 108-668B and esimates of salinity, alkalinity and pCO2 (Table 1)

Knowledge of past atmospheric pCO2 is important for evaluating the role of greenhouse gases in climate forcing. Ice core records show the tight correlation between climate change and pCO2, but records are limited to the past ~900 kyr. We present surface ocean pH and pCO2 data, reconstructed from bor...

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Bibliographic Details
Main Authors: Hönisch, Bärbel, Hemming, N Gary
Format: Dataset
Language:English
Published: PANGAEA 2005
Subjects:
108-668B
AGE
Alkalinity
total
Calculated
Calculated from Mg/Ca ratios (Dekens et al. 2002)
Carbon dioxide
partial pressure
DRILL
Drilling/drill rig
DSDP/ODP/IODP sample designation
Globigerinoides ruber
Magnesium/Calcium ratio
Inductively coupled plasma - mass spectrometry (ICP-MS)
Joides Resolution
Leg108
standard deviation
Mass
North Atlantic Ocean
Number
Ocean Drilling Program
ODP
pH
Salinity
Sample code/label
Sea level variation
Sea surface temperature
annual mean
Thermal Ionization Mass Spectrometry (TIMS)
δ11B
δ18O
water
ice core
North Atlantic
Planktonic foraminifera
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.712921
https://doi.org/10.1594/PANGAEA.712921
Description
Summary:Knowledge of past atmospheric pCO2 is important for evaluating the role of greenhouse gases in climate forcing. Ice core records show the tight correlation between climate change and pCO2, but records are limited to the past ~900 kyr. We present surface ocean pH and pCO2 data, reconstructed from boron isotopes in planktonic foraminifera over two full glacial cycles (0-140 and 300-420 kyr). The data co-vary strongly with the Vostok pCO2-record and demonstrate that the coupling between surface ocean chemistry and the atmosphere is recorded in marine archives, allowing for quantitative estimation of atmospheric pCO2 beyond the reach of ice cores.

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