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Teca, Elisabeth; Michel, Elisabeth; Siani, Giuseppe; Crosta, Xavier; Lange, Carina Beatriz; Martínez Fontaine, Consuelo; Cárdenas, Paola (2025): Radiocarbon ages from core MD07-3081 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.974847, In: Teca, E et al. (2025): Geological investigations on sediment core MD07-3081 [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.974782

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Published: 2025-04-24 • DOI registered: 2025-05-23

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Abstract:
This dataset contains the age model of core MD07-3081. It integrates 21 radiocarbon (14C) dates between 50 and 1230 cm and was previously determined by Martínez Fontaine (2021). Depending on foraminifera availability, either monospecific planktonic foraminifera Globigerina bulloides or mixed planktonic foraminifera (Globigerina bulloides, Globorotalia inflata, Globigerinita glutinata, Neogloboquadrina incompta, Neogloboquadrina pachyderma (left coiling) and Turborotalia quinqueloba) were picked from the fraction >150 μm. The age model was obtained with the Undatable software (Lougheed and Obrochta, 2019).
Keyword(s):
Diatom; Foraminifera; Last Glacial; South Pacific Ocean
Supplement to:
Teca, Elisabeth; Michel, Elisabeth; Siani, Giuseppe; Crosta, Xavier; Lange, Carina Beatriz; Fontaine, Consuelo Martínez; Cárdenas, Paola (2024): Paleoceanography of the southeast Pacific since the late glacial from diatom and foraminiferal assemblages. Palaeogeography, Palaeoclimatology, Palaeoecology, 655, 112515, https://doi.org/10.1016/j.palaeo.2024.112515
Related to:
Martínez Fontaine, Consuelo (2021): Utilisation of radiocarbon and tephrochronology to constrain the oceanic circulation in the Southeast Pacific Ocean during the last 20,000 years [dissertation]. https://theses.hal.science/tel-03543983
Related code / software:
Lougheed, Bryan C; Obrochta, Stephen P (2019): A Rapid, Deterministic Age-Depth Modeling Routine for Geological Sequences With Inherent Depth Uncertainty. Paleoceanography and Paleoclimatology, 34(1), 122-133, https://doi.org/10.1029/2018PA003457
Coverage:
Latitude: -49.429333 * Longitude: -76.969500
Date/Time Start: 2007-02-09T05:59:00 * Date/Time End: 2007-02-09T05:59:00
Minimum DEPTH, sediment/rock: 0.50 m * Maximum DEPTH, sediment/rock: 12.30 m
Event(s):
MD07-3081 * Latitude: -49.429333 * Longitude: -76.969500 * Date/Time: 2007-02-09T05:59:00 * Elevation: -3273.0 m * Recovery: 16.22 m * Campaign: MD159 (IMAGES XV - Pachiderme) * Basis: Marion Dufresne (1995) * Method/Device: Calypso Corer II (CALYPSO2)
Comment:
The financial support for this research was given by:
1) French-Swedish project on SO VR-349-2012-6278, Laboratoire des Sciences du Climat et de l'Environnement (LSCE), Laboratoire mixte CNRS-CEA-UVSQ, Bât 714, L'orme des Merisiers, 91190 Gif-sur-Yvette Cedex, France
2) French INSU SEPORA project, Laboratoire des Sciences du Climat et de l'Environnement (LSCE), Laboratoire mixte CNRS-CEA-UVSQ, Bât 714, L'orme des Merisiers, 91190 Gif-sur-Yvette Cedex, France
We also thank the LMC14 staff "Laboratoire de Mesure du Carbone-14", ARTEMIS national facility (LSCE (CNRS-CEA-UVSQ)-IRD-IRSN-MC) (Laboratoire des Sciences du Climat et de l'Environnement (LSCE), Laboratoire mixte CNRS-CEA-UVSQ, Bât 714, L'orme des Merisiers, 91190 Gif-sur-Yvette Cedex, France), for the results obtained with the accelerator mass spectrometry method.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Sample IDSample IDTeca, ElisabethSacA Number
2 DEPTH, sediment/rockDepth sedmTeca, ElisabethGeocode
3 SpeciesSpeciesTeca, Elisabeth
4 Age, datedAge datedka BPTeca, ElisabethRadiocarbon analysis (14C)14C
5 Age, dated, standard deviationAge dated std dev±Teca, Elisabeth1s
6 Calendar age, medianCal age medianka BPTeca, Elisabeth
7 Calendar age, minimum/youngCal age minka BPTeca, Elisabeth1s
8 Calendar age, maximum/oldCal age maxka BPTeca, Elisabeth1s
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
140 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 
Sample ID		2 
Depth sed [m]		3 
Species		4 
Age dated [ka BP]		5 
Age dated std dev [±]		6 
Cal age median [ka BP]		7 
Cal age min [ka BP]		8 
Cal age max [ka BP]
SacA 621390.50Mixed planktic foraminifera2.7000.0302.4072.3052.590
SacA 613341.00G.bulloides4.6200.0304.7914.5724.926
SacA 621412.50Mixed planktic foraminifera8.8600.0359.4568.7739.511
SacA 613352.80Mixed planktic foraminifera9.1800.0409.9189.72910.102
SacA 613363.40Mixed planktic foraminifera10.2000.04011.23610.90411.362
SacA 621433.90G.bulloides10.4650.03511.75111.51812.130
SacA 621454.30G.bulloides11.3050.04012.85412.74812.989
SacA 613374.70Mixed planktic foraminifera12.2150.04013.73313.51113.961
SacA 621465.20G.bulloides13.0700.06014.52214.21414.882
SacA 621486.10Mixed planktic foraminifera13.5000.05015.49315.19016.248
SacA 621506.30Mixed planktic foraminifera14.0800.05016.14815.69317.025
SacA 621516.70Mixed planktic foraminifera14.7300.05016.78616.47117.296
SacA 621526.80Mixed planktic foraminifera14.5500.07016.96116.64817.361
SacA 613387.00Mixed planktic foraminifera14.8500.06017.45917.04617.865
SacA 621547.70Mixed planktic foraminifera15.0000.06017.99917.67418.259
SacA 621558.01Mixed planktic foraminifera15.2700.06018.34018.05218.608
SacA 621569.30Mixed planktic foraminifera16.9000.07019.22718.86519.945
SacA 6215710.50Mixed planktic foraminifera16.7300.13019.89019.54120.239
SacA 6215811.60Mixed planktic foraminifera17.1300.10020.32920.29720.775
SacA 6215912.30Mixed planktic foraminifera17.3900.10020.69320.42320.977