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Sangiorgi, Francesca (2020): Miocene ocean temperatures (TEX86-L) of the ANDRILL-2A record, Ross Sea, Antarctica [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.914002

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Abstract:
Early and mid-Miocene sea surface ocean temperatures in the sediment record of ANDRILL (ANtarctic DRILLing Project) AND-2A, Ross Sea (Antarctica), were obtained through analyses of iso-GDGTs (glycerol dialkyl glycerol tetraethers) and TEX86-based paleothermometry. Sediment samples were extracted using accelerated solvent extraction technique (ASE) and the polar fractions were analyzed for tetraether lipids using high-performance liquid chromatography/atmospheric pressure positive ion chemical ionisation mass spectrometry (HPLC/APCI-MS) as described by Schouten et al. (2007). TEX-L (calibration 0-200m, Kim et al., 2012) was chosen to calculate temperatures.
Keyword(s):
ANDRILL; Miocene; ocean temperature; Ross Sea; TEX86
Further details:
Kim, Jung-Hyun; Crosta, Xavier; Willmott, Verónica; Renssen, Hans; Bonnin, Jerome; Helmke, Peer; Schouten, Stefan; Sinninghe Damsté, Jaap S (2012): Holocene subsurface temperature variability in the eastern Antarctic continental margin. Geophysical Research Letters, 39, L06705, https://doi.org/10.1029/2012GL051157
Schouten, Stefan; Forster, Astrid; Panoto, F Elda; Sinninghe Damsté, Jaap S (2007): Towards calibration of the TEX86 palaeothermometer for tropical sea surface temperatures in ancient greenhouse worlds. Organic Geochemistry, 38(9), 1537-1546, https://doi.org/10.1016/j.orggeochem.2007.05.014
Zhang, Yi Ge; Pagani, Mark; Wang, Zhengrong (2016): Ring Index: A new strategy to evaluate the integrity of TEX86 paleothermometry. Paleoceanography, 31(2), 220-232, https://doi.org/10.1002/2015PA002848
Zhang, Yi Ge; Zhang, Chuanlun L; Liu, Xiao-Lei; Li, Li; Hinrichs, Kai-Uwe; Noakes, T D (2011): Methane Index: A tetraether archaeal lipid biomarker indicator for detecting the instability of marine gas hydrates. Earth and Planetary Science Letters, 307(3-4), 525-534, https://doi.org/10.1016/j.epsl.2011.05.031
Coverage:
Latitude: -77.758141 * Longitude: 165.276765
Date/Time Start: 2007-10-10T12:00:00 * Date/Time End: 2007-11-30T12:00:00
Minimum DEPTH, sediment/rock: 142.90 m * Maximum DEPTH, sediment/rock: 1125.97 m
Event(s):
AND-2A * Latitude: -77.758141 * Longitude: 165.276765 * Date/Time Start: 2007-10-10T12:00:00 * Date/Time End: 2007-11-30T12:00:00 * Elevation: -380.0 m * Recovery: 1138.54 m * Location: McMurdo Sound * Campaign: SMS (Southern McMurdo Sound) * Basis: McMurdo Station * Method/Device: Drilling/drill rig (DRILL) * Comment: Coring site is located ~25 km from the United States' McMurdo Station and from New Zealand's Scott Base on a 8.5 m thick floating sea-ice platform.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1DEPTH, sediment/rockDepth sedmSangiorgi, FrancescaGeocode
2AGEAgeka BPSangiorgi, FrancescaGeocode
3Isoprenoid acyclic glycerol dialkyl glycerol tetraether (peak area)iso GDGT-0Sangiorgi, Francesca
4Isoprenoid monocyclic glycerol dialkyl glycerol tetraether (peak area)iso GDGT-1Sangiorgi, Francesca
5Isoprenoid dicyclic glycerol dialkyl glycerol tetraether (peak area)iso GDGT-2Sangiorgi, Francesca
6Isoprenoid tricyclic glycerol dialkyl glycerol tetraether (peak area)iso GDGT-3Sangiorgi, Francesca
7Crenarchaeol (peak area)Cren peak areaSangiorgi, FrancescaGDGT-4
8Crenarchaeol isomer (peak area)Cren iso peak areaSangiorgi, FrancescaGDGT-4'
9Branched glycerol dialkyl glycerol tetraether, IIIa (peak area)brGDGT IIIa peak areaSangiorgi, Francesca
10Branched glycerol dialkyl glycerol tetraether, IIa (peak area)brGDGT IIa peak areaSangiorgi, Francesca
11Branched glycerol dialkyl glycerol tetraether, Ia (peak area)brGDGT Ia peak areaSangiorgi, Francesca
12Isoprenoid glycerol dialkyl glycerol tetraether (peak area)iso GDGT peak areaSangiorgi, FrancescaSum iso-GDGT
13Acyclic glycerol dialkyl glycerol tetraetherGDGT-0%Sangiorgi, Francesca
14Monocyclic glycerol dialkyl glycerol tetraetherGDGT-1%Sangiorgi, Francesca
15Dicyclic glycerol dialkyl glycerol tetraetherGDGT-2%Sangiorgi, Francesca
16Tricyclic glycerol dialkyl glycerol tetraetherGDGT-3%Sangiorgi, Francesca
17CrenarchaeolCren%Sangiorgi, Francesca
18Crenarchaeol isomerCren iso%Sangiorgi, Francesca
19Tetraether index of 86 carbon atomsTEX86Sangiorgi, Francesca
20Branched and isoprenoid tetraether indexBITSangiorgi, Francesca
21RatioRatioSangiorgi, FrancescaGDGT-2 to GDGT-3 ratio
22RatioRatioSangiorgi, FrancescaGDGT-0 to crenarchaeol ratio
23Methane indexMISangiorgi, FrancescaZhang et al. (2011)
24Ring indexRISangiorgi, FrancescaZhang et al. (2016)
25Sea surface temperatureSST°CSangiorgi, FrancescaTemperature TEX-L 0m-200m
26Sea surface temperatureSST°CSangiorgi, FrancescaTemperature TEX-L 0m
Size:
1662 data points

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