δ13C and δ18O isotopes of Globigerina bulloides from ODP Site 177-1090

Over the last deglaciation there were two transient intervals of pronounced atmospheric CO2 rise; Heinrich Stadial 1 (17.5-15 kyr) and the Younger Dryas (12.9-11.5 kyr). Leading hypotheses accounting for the increased accumulation of CO2 in the atmosphere at these times invoke deep ocean carbon bein...

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Bibliographic Details
Main Authors: Shuttleworth, Rachael, Bostock, Helen C, Chalk, Thomas B, Calvo, Eva, Jaccard, Samuel L, Pelejero, Carles, Martínez-García, Alfredo, Foster, Gavin L
Format: Dataset
Language:English
Published: PANGAEA 2021
Subjects:
177-1090
AGE
alkenones
boron isotopes
Calculated
COMPCORE
Composite Core
deglacial
Depth
bottom/max
sediment/rock
top/min
Globigerina bulloides
δ13C
δ13C/12C ratio
standard deviation
δ18O
δ18O/16O ratio
Joides Resolution
Leg177
Normalized
ODP 1090
South Atlantic Ocean
Sub-Antarctic
TAN1106-28
Antarctic
Southern Ocean
Antarc*
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.929101
https://doi.org/10.1594/PANGAEA.929101
Description
Summary:Over the last deglaciation there were two transient intervals of pronounced atmospheric CO2 rise; Heinrich Stadial 1 (17.5-15 kyr) and the Younger Dryas (12.9-11.5 kyr). Leading hypotheses accounting for the increased accumulation of CO2 in the atmosphere at these times invoke deep ocean carbon being released from the Southern Ocean and an associated decline in the global efficiency of the biological carbon pump. From core ODP1090 we present new G. bulloidies carbon and oxygen isotope records. These stable isotopic analyses were performed on a Thermo Finnigan MAT253 coupled with a Kiel IV carbonate device at the University of Southampton.

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