Citation:

PANGAEA.919846

Name: d18O of bulk carbonate from sediment core MD01-2444 on the Portuguese Margin, Marine Isotope Stage 3
Published: 2020-07-03
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Heinrich Stadials; Interstadials; MIS 3; Portuguese Margin

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Abstract:

Bulk carbonate oxygen isotopes: Oxygen isotopes were measured using a ThermoFisher GasBench II equipped with a CTC Combi-Pal autosampler and interfaced via continuous flow with a ThermoFisher MAT 253 isotope ratio mass spectrometer (IRMS). About 200-300 mg of bulk sample was used. Analytical precision is estimated to be ±0.08% for d18O of an internal standard (Carrara marble).

Age model: The age model was developed by aligning the abrupt transitions of d18O record of G. bulloides in core MD01-2444 to warming and cooling events in the NGRIP d18Oice record, presented on: (i) the GICC05 timescale [Svensson, A. et al. A 60,000 year Greenland stratigraphic ice core chronology. Clim. Past 4, 47–57 (2008)]; and (ii) the WD2014: modified timescale, whereby NGRIP GICC05 ice ages 31.2–67.2 ka are multiplied by 1.0063. [Buizert, C. et al. The WAIS Divide deep ice core WD2014 chronology – Part 1: Methane synchronization (68–31 ka BP) and the gas age–ice age difference. Clim. Past 11, 153-173 (2015)].

Keyword(s):

Heinrich Stadials; Interstadials; MIS 3; Portuguese Margin

Supplement to:

Margari, Vasiliki; Skinner, Luke C; Menviel, Laurie; Capron, Emilie; Rhodes, Rachael H; Mleneck-Vautravers, Maryline J; Ezat, Mohamed M; Martrat, Belén; Grimalt, Joan O; Hodell, David A; Tzedakis, Polychronis C (2020): Fast and slow components of interstadial warming in the North Atlantic during the last glacial. Communications Earth & Environment, 1(1), https://doi.org/10.1038/s43247-020-0006-x

Further details:

Buizert, Christo; Cuffey, Kurt M; Severinghaus, Jeffrey P; Baggenstos, Daniel; Fudge, Tyler J; Steig, Eric J; Markle, Bradley R; Winstrup, Mai; Rhodes, Rachael H; Brook, Edward J; Sowers, Todd A; Clow, Gary D; Cheng, Hai; Edwards, Ross L; Sigl, Michael; McConnell, Joseph R; Taylor, Kendrick C (2015): The WAIS Divide deep ice core WD2014 chronology - Part 1: Methane synchronization (68–31 ka BP) and the gas age–ice age difference. Climate of the Past, 11(2), 153-173, https://doi.org/10.5194/cp-11-153-2015

Svensson, Anders M; Andersen, Katrine K; Bigler, Matthias; Clausen, Henrik Brink; Dahl-Jensen, Dorthe; Davies, Siwan M; Johnsen, Sigfús Jóhann; Muscheler, Raimund; Parrenin, Frédéric; Rasmussen, Sune Olander; Röthlisberger, Regine; Seierstad, Inger K; Steffensen, Jørgen Peder; Vinther, Bo Møllesøe (2008): A 60 000 year Greenland stratigraphic ice core chronology. Climate of the Past, 4(1), 47-57, https://doi.org/10.5194/cp-4-47-2008

Coverage:

Latitude: 37.565000 * Longitude: -10.134000

Minimum DEPTH, sediment/rock: 9.01 m * Maximum DEPTH, sediment/rock: 13.49 m

Event(s):

MD01-2444 * Latitude: 37.565000 * Longitude: -10.134000 * Elevation: -2656.0 m * Campaign: (GEOSCIENCES, MARMARCORE) * Basis: * Method/Device: Calypso Corer (CALYPSO)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DEPTH, sediment/rock	Depth sed	m	Tzedakis, Polychronis C		Geocode
2	Age model	Age model	ka	Tzedakis, Polychronis C	Age model, GICC05
3	Age model	Age model	ka	Tzedakis, Polychronis C	Age model, WD2014
4	δ18O, bulk carbonate	δ18O bulk carb	‰ PDB	Tzedakis, Polychronis C	Mass spectrometer MAT-253 ThermoFisher Scientific

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Size:

474 data points

Data

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

1 Depth sed [m]	2 Age model [ka] (Age model, GICC05)	3 Age model [ka] (Age model, WD2014)	4 δ18O bulk carb [‰ PDB] (Mass spectrometer MAT-253 The...)
9.01	35.083	35.304	-0.14
9.04	35.178	35.400	-0.30
9.07	35.274	35.496	-0.99
9.07	35.274	35.496	-0.72
9.10	35.369	35.592	0.23
9.13	35.464	35.687	-0.83
9.16	35.569	35.793	-1.06
9.19	35.676	35.901	-1.22
9.22	35.782	36.007	-1.38
9.25	35.889	36.115	-1.54
9.25	35.889	36.115	-1.44
9.28	35.996	36.223	-1.00
9.31	36.102	36.329	-0.90
9.34	36.209	36.437	-0.56
9.37	36.316	36.545	-0.53
9.40	36.422	36.651	-0.77
9.43	36.529	36.759	-0.67
9.46	36.639	36.870	-0.27
9.49	36.754	36.986	-0.13
9.52	36.870	37.102	-0.43
9.55	36.986	37.219	-0.18
9.58	37.101	37.335	-0.63
9.61	37.217	37.451	-0.28
9.64	37.333	37.568	-0.39
9.67	37.449	37.685	-0.31
9.70	37.564	37.801	-0.50
9.73	37.680	37.917	-0.22
9.76	37.796	38.034	-0.81
9.79	37.911	38.150	-1.04
9.82	38.027	38.267	-0.43
9.82	38.027	38.267	-0.35
9.85	38.143	38.383	-1.45
9.88	38.271	38.512	-1.61
9.91	38.424	38.666	-1.35
9.94	38.578	38.821	-1.46
9.97	38.731	38.975	-0.84
9.97	38.731	38.975	-1.27
10.00	38.884	39.129	-1.07
10.03	39.038	39.284	-1.69
10.03	39.038	39.284	-1.90
10.06	39.191	39.438	-1.99
10.09	39.344	39.592	-1.32
10.12	39.498	39.747	-1.02
10.15	39.629	39.879	-1.18
10.18	39.715	39.965	-0.79
10.21	39.801	40.052	-1.04
10.24	39.887	40.138	-1.24
10.27	39.973	40.225	-0.58
10.30	40.059	40.311	-0.71
10.33	40.146	40.399	-0.67
10.36	40.280	40.534	-0.47
10.39	40.425	40.680	-0.54
10.42	40.569	40.825	-0.67
10.45	40.714	40.970	-0.66
10.48	40.858	41.115	-0.57
10.51	41.003	41.261	-0.65
10.54	41.147	41.406	-0.45
10.57	41.291	41.551	-0.29
10.60	41.436	41.697	-0.85
10.63	41.558	41.820	-1.19
10.66	41.675	41.938	-1.41
10.69	41.793	42.056	-0.92
10.72	41.910	42.174	-1.06
10.75	42.028	42.293	-0.53
10.78	42.145	42.411	-0.39
10.81	42.263	42.529	-0.39
10.84	42.380	42.647	0.03
10.87	42.498	42.766	-0.50
10.87	42.498	42.766	-0.21
10.90	42.615	42.883	-0.05
10.93	42.733	43.002	-0.48
10.96	42.850	43.120	-0.09
10.99	42.968	43.239	-0.02
11.02	43.085	43.356	-0.54
11.05	43.203	43.475	-0.68
11.08	43.320	43.593	-1.13
11.11	43.461	43.735	-0.95
11.14	43.605	43.880	-0.50
11.17	43.750	44.026	-0.72
11.20	43.895	44.172	-0.84
11.23	44.039	44.316	-0.18
11.26	44.184	44.462	-0.18
11.29	44.328	44.607	0.01
11.32	44.473	44.753	-0.11
11.35	44.618	44.899	0.11
11.38	44.762	45.044	0.01
11.41	44.907	45.190	-0.19
11.44	45.052	45.336	-0.28
11.47	45.196	45.481	-0.19
11.51	45.389	45.675	-0.50
11.54	45.534	45.821	-0.27
11.57	45.679	45.967	-0.21
11.60	45.823	46.112	-0.49
11.63	45.968	46.258	-0.64
11.66	46.113	46.404	-0.65
11.66	46.113	46.404	-0.74
11.69	46.257	46.548	-0.40
11.72	46.402	46.694	-0.32
11.75	46.547	46.840	-0.58
11.78	46.691	46.985	-0.77
11.81	46.836	47.131	-1.01
11.84	46.991	47.287	-0.55
11.87	47.149	47.446	-1.14
11.90	47.307	47.605	-1.14
11.93	47.464	47.763	-1.19
11.96	47.622	47.922	-1.15
11.99	47.780	48.081	-1.64
12.02	47.937	48.239	-1.41
12.05	48.095	48.398	-1.53
12.08	48.242	48.546	-1.44
12.11	48.369	48.674	-0.66
12.14	48.496	48.802	-0.19
12.17	48.624	48.930	-0.16
12.20	48.751	49.058	-0.25
12.23	48.878	49.186	-0.20
12.26	49.005	49.314	-0.16
12.29	49.132	49.442	-0.08
12.32	49.259	49.569	-0.04
12.35	49.441	49.752	-0.15
12.38	49.634	49.947	-0.28
12.41	49.827	50.141	-0.23
12.44	50.020	50.335	-0.18
12.47	50.213	50.529	-0.15
12.50	50.406	50.724	-0.16
12.51	50.470	50.788	-0.11
12.53	50.599	50.918	-0.07
12.56	50.792	51.112	0.01
12.59	50.985	51.306	-0.18
12.62	51.178	51.500	0.02
12.65	51.371	51.695	0.11
12.68	51.552	51.877	0.20
12.71	51.707	52.033	0.31
12.74	51.863	52.190	0.18
12.77	52.018	52.346	-0.02
12.80	52.174	52.503	0.35
12.83	52.329	52.659	0.01
12.86	52.484	52.815	0.10
12.89	52.640	52.972	0.25
12.92	52.795	53.128	0.14
12.95	52.951	53.285	0.20
12.98	53.106	53.441	0.37
13.01	53.262	53.598	0.45
13.04	53.417	53.754	0.08
13.07	53.572	53.910	-0.08
13.10	53.728	54.066	0.18
13.13	53.883	54.222	0.05
13.16	54.039	54.379	-0.07
13.19	54.194	54.535	-0.81
13.22	54.348	54.690	-0.99
13.25	54.501	54.844	-0.73
13.28	54.654	54.998	-0.84
13.31	54.808	55.153	-0.82
13.34	54.961	55.307	-0.53
13.37	55.114	55.461	-0.20
13.40	55.268	55.616	-0.67
13.43	55.421	55.770	-0.52
13.46	55.574	55.924	-0.71
13.49	55.728	56.079	-1.01