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Nuber, Sophie; Rae, James W B; Zhang, Xu; Andersen, Morten L; Dumont, Matthew; Mithan, T Huw; Sun, Yuchen; de Boer, Bas; Hall, Ian R; Barker, Stephen (2023): Planktic Foraminifera SST and ice volume corrected oxygen isotopes from IODP Site 361-U1476 Mozambique Channel Indian Ocean for the past 1.2Ma [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.955588, In: Nuber, S et al. (2023): Dataset for Indian Ocean Salinity build-up primes Deglacial Ocean Circulation Recovery [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.955609

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Abstract:
Indian Ocean surface circulation is an important part of the global ocean conveyor belt, and is connected via two important gateways including the Indonesian Throughflow, and the Agulha Leakage. Changes in the surface hydrography of the Indian Ocean may therefore impact on the global overturning circulation. Here we present oxygen-isotopes and magnesium/calcium ratios from planktic foraminifer Globigernoides ruber from core site U1476 to reconstruct sea surface salinity and sea surface temperature in the Mozambique Channel, Indian Ocean for the past 1.2Ma. We investigated the changes in the surface hydrography of the Mid-to-Late Pleistocene and find an early salinification and warming during glacial cycles.
Keyword(s):
Indian Ocean; oxygen isotope ratios; oxygen isotopes; planktic foraminifera; Salinity; Temperature; Sea surface salinity; Sea surface temperature
Coverage:
Latitude: -15.821000 * Longitude: 41.769000
Date/Time Start: 2016-03-08T07:50:00 * Date/Time End: 2016-03-10T19:50:00
Minimum DEPTH, sediment/rock: 0.00 m * Maximum DEPTH, sediment/rock: 32.65 m
Event(s):
361-U1476A * Latitude: -15.821000 * Longitude: 41.769000 * Date/Time: 2016-03-08T07:50:00 * Elevation: -2176.8 m * Penetration: 224.2 m * Recovery: 232.9 m * Campaign: Exp361 (South African Climates (Agulhas LGM Density Profile)) * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 24 cores, 0 m drilled, 104% recovery
361-U1476C * Latitude: -15.821000 * Longitude: 41.769000 * Date/Time: 2016-03-09T20:45:00 * Elevation: -2176.6 m * Penetration: 5.7 m * Recovery: 5.72 m * Campaign: Exp361 (South African Climates (Agulhas LGM Density Profile)) * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 1 cores, 0 m drilled, 100% recovery
361-U1476D * Latitude: -15.821000 * Longitude: 41.769000 * Date/Time: 2016-03-09T21:30:00 * Elevation: -2176.6 m * Penetration: 229 m * Recovery: 237.02 m * Campaign: Exp361 (South African Climates (Agulhas LGM Density Profile)) * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 24 cores, 1 m drilled, 104% recovery
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEventNuber, Sophie
2Latitude of eventLatitudeNuber, Sophie
3Longitude of eventLongitudeNuber, Sophie
4Date/Time of eventDate/TimeNuber, Sophie
5Sample code/labelSample labelNuber, SophieDSDP/ODP/IODP sample designation
6IdentificationIDNuber, SophieCore ID
7DEPTH, sediment/rockDepth sedmNuber, SophieIODP Depth Scale TerminologyGeocode – CCSF
8AGEAgeka BPNuber, SophieGeocode
9Magnesium/Calcium ratioMg/Cammol/molCalculated
10Globigerinoides ruber, δ18OG. ruber δ18O‰ PDBNuber, Sophievs. VPDB
11Globigerinoides ruber, δ18O, standard deviationG. ruber δ18O std dev±Nuber, Sophievs. VPDB
12Sea surface temperatureSST°CNuber, SophieSST from Mg/Ca ratios
13Sea surface temperature, standard deviationSST std dev±Nuber, SophieSST from Mg/Ca ratiosSigma
14δ18O, seawater, reconstructedδ18OswNuber, SophieIce volume corrected
15δ18O, seawater, reconstructed, standard deviationδ18Osw std dev±Nuber, SophieIce volume corrected1sd
16δ18O, seawater, reconstructedδ18OswNuber, SophieIce volume correctedUsing 361-U1476-derived δ18O global ice
17δ18O, seawater, reconstructed, standard deviationδ18Osw std dev±Nuber, SophieIce volume corrected1sd
Size:
4159 data points

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