Shuttleworth, Rachael; Bostock, Helen C; Chalk, Thomas B; Calvo, Eva; Jaccard, Samuel L; Pelejero, Carles; Martínez-García, Alfredo; Foster, Gavin L (2021): δ13C and δ18O isotopes of Globigerina bulloides from ODP Site 177-1090 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.929101
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Abstract:
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.
Related to:
Shuttleworth, Rachael; Bostock, Helen C; Chalk, Thomas B; Calvo, Eva; Jaccard, Samuel L; Pelejero, Carles; Martínez-García, Alfredo; Foster, Gavin L (2021): Early deglacial CO2 release from the Sub-Antarctic Atlantic and Pacific oceans. Earth and Planetary Science Letters, 554, 116649, https://doi.org/10.1016/j.epsl.2020.116649
Coverage:
Latitude: -42.913617 * Longitude: 8.899817
Date/Time Start: 1997-12-25T00:00:00 * Date/Time End: 1997-12-25T00:00:00
Minimum DEPTH, sediment/rock: 0.025 m * Maximum DEPTH, sediment/rock: 0.725 m
Event(s):
177-1090 * Latitude: -42.913617 * Longitude: 8.899817 * Date/Time: 1997-12-25T00:00:00 * Elevation: -3701.6 m * Penetration: 936.4 m * Recovery: 874.9 m * Location: South Atlantic Ocean * Campaign: Leg177 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 101 cores; 936.4 m cored; 0 m drilled; 93.4% recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Depth, top/min | Depth top | m | Shuttleworth, Rachael | Lower | |
| 2 | Depth, bottom/max | Depth bot | m | Shuttleworth, Rachael | Upper | |
| 3 | DEPTH, sediment/rock | Depth sed | m | Shuttleworth, Rachael | Geocode | |
| 4 | AGE | Age | ka BP | Shuttleworth, Rachael | Geocode | |
| 5 | Globigerina bulloides, δ13C | G. bulloides δ13C | ‰ PDB | Shuttleworth, Rachael | Normalized | Normalised VPDB Mean |
| 6 | Globigerina bulloides, δ13C/12C ratio, standard deviation | G. bulloides δ12C/13C std dev | ± | Shuttleworth, Rachael | Calculated | |
| 7 | Globigerina bulloides, δ18O | G. bulloides δ18O | ‰ PDB | Shuttleworth, Rachael | Normalized | Normalised VPDB Mean |
| 8 | Globigerina bulloides, δ18O/16O ratio, standard deviation | G. bulloides δ18O/16O | ± | Shuttleworth, Rachael | Calculated |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
174 data points