Citation:

PANGAEA.913740

Name: Stable oxygen isotope, Mg/Ca and δ18O of Globigerinoides ruber (sensu stricto, white variety) from sediment core SK237 GC09, northern Indian Ocean
Published: 2020-03-19
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Glacial; Globigerinoides ruber; Indian Ocean; Indo Pacific Warm Pool; Interglacial; Mg/Ca; δ18O

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Published: 2020-03-19 • DOI registered: 2020-04-17

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Abstract:

The gravity core (SK237 GC09) was collected from the central equatorial Indian Ocean (12°00.59′N, 70°52.20′E) from a water depth of 3001 m, during the 237th cruise of the ORV Sagar Kanya. The top section of the core was dated by four accelerator mass spectrometer radiocarbon dates on mixed planktic foraminifera, measured at the Center for Applied Isotope Studies, the University of Georgia, USA. The 14C dates were calibrated by using Calib7.0 software and MARINE13 dataset (Stuiver et al., 2018). The chronology of the older section was established by comparing the stable oxygen isotopic (δ18O) ratio of surface-dwelling planktic foraminifera Globigerinoides ruber (white) with the LR04 global isostack (Lisiecki and Raymo, 2005). The elemental (Mg/Ca) and stable oxygen isotopic (δ18O) ratio of surface-dwelling planktic foraminifera Globigerinoides ruber (white) was analyzed to reconstruct SST and evaporation-precipitation changes.

Keyword(s):

Glacial; Globigerinoides ruber; Indian Ocean; Indo Pacific Warm Pool; Interglacial; Mg/Ca; δ18O

Supplement to:

Saraswat, Rajeev; Singh, Dharmendra Pratap; Lea, David W; Mackensen, Andreas; Naik, Dinesh Kumar (2019): Indonesian throughflow controlled the westward extent of the Indo-Pacific Warm Pool during glacial-interglacial intervals. Global and Planetary Change, 183, 103031, https://doi.org/10.1016/j.gloplacha.2019.103031

Coverage:

Latitude: 12.009833 * Longitude: 70.870000

Minimum DEPTH, sediment/rock: 0.005 m * Maximum DEPTH, sediment/rock: 2.995 m

Event(s):

SK237_GC09 * Latitude: 12.009833 * Longitude: 70.870000 * Elevation: -3001.0 m * Location: northern Indian Ocean * Method/Device: Gravity corer (GC)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DEPTH, sediment/rock	Depth sed	m	Saraswat, Rajeev		Geocode
2	AGE	Age	ka BP	Saraswat, Rajeev		Geocode
3	Globigerinoides ruber white, δ18O	G. ruber w δ18O	‰ PDB	Saraswat, Rajeev	Isotope ratio mass spectrometry
4	Globigerinoides ruber white, Magnesium/Calcium ratio	G. ruber w Mg/Ca	mmol/mol	Saraswat, Rajeev
5	Temperature, water	Temp	°C	Saraswat, Rajeev	Estimated
6	δ18O, seawater, reconstructed	δ18Osw	‰	Saraswat, Rajeev	Calculated

License:

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

Size:

695 data points

Data

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

1 Depth sed [m]	2 Age [ka BP]	3 G. ruber w δ18O [‰ PDB]	4 G. ruber w Mg/Ca [mmol/mol]	5 Temp [°C]	6 δ18Osw [‰]
0.005	3.1	-1.460	3.744	27.25	1.05
0.015	3.5	-1.401
0.025	3.9		3.747	27.26
0.035	4.2		3.802	27.42
0.045	4.6	-1.388	3.821	27.48	1.17
0.055	5.0	-1.393	3.545	26.64	0.99
0.065	5.4	-1.369	3.752	27.27	1.15
0.075	5.7	-1.489	3.801	27.42	1.06
0.085	6.1	-1.510	3.684	27.07	0.96
0.095	6.5	-1.666	3.751	27.27	0.85
0.105	6.8	-1.231	3.883	27.66	1.36
0.115	7.2	-1.095	3.964	27.88	1.55
0.125	7.6	-1.318	3.715	27.16	1.17
0.135	8.0	-1.049	3.757	27.29	1.47
0.145	8.3	-0.728	3.872	27.62	1.86
0.155	8.7	-0.870	3.854	27.57	1.71
0.165	9.1	-0.641	3.631	26.91	1.80
0.175	9.5	-0.806	4.090	28.23	1.91
0.185	9.8	-0.939	3.687	27.08	1.54
0.195	10.2	-1.057	4.158	28.41	1.69
0.205	10.6	-0.932	3.984	27.94	1.72
0.215	10.9	-0.695	3.764	27.31	1.83
0.225	11.3	-0.305	4.043	28.10	2.38
0.235	11.7	-0.607	3.809	27.44	1.94
0.245	12.1	-0.693	3.864	27.60	1.89
0.255	12.4	-0.974	3.745	27.25	1.54
0.265	13.0	-0.028	3.410	26.21	2.26
0.275	13.6	-0.162	3.500	26.50	2.19
0.285	14.2	-0.368	3.948	27.84	2.26
0.295	14.8	-0.497	3.372	26.09	1.77
0.305	15.4	-0.077	3.290	25.81	2.13
0.315	16.0	-0.128	2.981	24.72	1.85
0.325	16.6	0.147	3.026	24.88	2.16
0.335	17.2	0.162
0.345	17.8	0.049	2.908	24.44	1.97
0.355	18.4	0.076	2.948	24.59	2.03
0.365	19.0	0.069
0.375	19.7	0.097
0.385	20.3	-0.158
0.395	20.9	-0.082	2.942	24.57	1.87
0.405	21.5	-0.133	2.956	24.62	1.83
0.415	22.1	-0.002	2.867	24.28	1.89
0.425	22.7	0.099	3.046	24.96	2.13
0.435	23.3	-0.004	3.258	25.71	2.18
0.445	23.9	0.123	3.081	25.08	2.18
0.455	24.5	0.222	2.935	24.55	2.17
0.465	25.1	0.117	2.975	24.70	2.09
0.475	25.7	0.043	3.124	25.24	2.13
0.485	26.3	-0.012	3.245	25.66	2.17
0.495	26.9	-0.060	3.118	25.22	2.03
0.515	27.6	-0.019	3.316	25.90	2.21
0.535	28.3	0.050	3.097	25.14	2.12
0.555	29.0	-0.257	3.269	25.74	1.94
0.575	29.8	-0.170	3.311	25.88	2.05
0.595	30.5	-0.164	3.086	25.10	1.90
0.615	31.2	-0.204	3.396	26.17	2.08
0.635	31.9	-0.397	3.071	25.05	1.65
0.655	32.6	-0.409	3.476	26.42	1.93
0.675	33.4	-0.463	3.036	24.92	1.56
0.695	34.1	-0.555
0.715	34.8	-0.548	3.182	25.44	1.58
0.735	35.5	-0.536	2.873	24.31	1.36
0.755	36.5	-0.543	3.128	25.25	1.55
0.775	37.7	-0.446	3.474	26.42	1.89
0.795	38.9	-0.396	3.339	25.98	1.85
0.815	40.2	-0.505	3.110	25.19	1.57
0.835	41.4	-0.434	3.180	25.43	1.70
0.855	42.6	-0.469	3.098	25.15	1.60
0.875	43.8	-0.443	3.042	24.94	1.59
0.895	45.1	-0.406	2.921	24.49	1.53
0.915	46.3	-0.681	3.280	25.78	1.52
0.935	47.5	-0.548	3.286	25.80	1.66
0.955	48.7	-0.516	3.278	25.77	1.69
0.975	50.0	-0.452	3.325	25.93	1.78
0.995	51.2	-0.572	3.524	26.58	1.80
1.015	52.4	-0.672	3.071	25.05	1.38
1.035	53.6	-1.044	3.064	25.02	1.00
1.055	54.9	-0.854	3.325	25.93	1.38
1.070	55.8	-0.944	3.502	26.51	1.41
1.090	57.0	-0.546	3.305	25.86	1.67
1.110	57.9	-0.514	3.136	25.28	1.58
1.130	58.8	-0.666	3.225	25.59	1.50
1.150	59.6	-0.572	3.368	26.07	1.69
1.170	60.5	-0.408	3.255	25.69	1.78
1.190	61.4	-0.510	3.351	26.02	1.74
1.210	62.3	-0.548	3.414	26.22	1.75
1.230	63.1	-0.568	3.490	26.47	1.78
1.250	64.0	-0.472	3.699	27.12	2.01
1.265	64.7	-0.301	3.290	25.81	1.91
1.275	65.1	-0.218	3.487	26.46	2.13
1.290	65.8	-0.528
1.310	66.6	-0.388
1.330	67.5	-0.523	3.212	25.55	1.63
1.350	68.4	-0.425	3.240	25.64	1.75
1.370	69.3	-0.381	3.233	25.62	1.79
1.390	70.1	-0.647	3.331	25.95	1.59
1.410	71.0	-0.784	3.417	26.23	1.51
1.430	71.9	-0.967	3.624	26.89	1.47
1.450	72.7	-0.998	3.324	25.93	1.24
1.470	73.6	-0.766	3.445	26.32	1.55
1.490	74.5	-1.055	3.405	26.20	1.23
1.510	75.3	-1.087	3.435	26.29	1.22
1.530	76.2	-1.152	3.697	27.11	1.33
1.545	76.8	-1.187	3.751	27.27	1.33
1.555	77.3	-1.182	3.723	27.19	1.31
1.565	77.7	-1.025	3.566	26.71	1.37
1.575	78.1	-1.068	3.700	27.12	1.41
1.585	78.6	-1.055	3.330	25.95	1.18
1.595	79.0	-1.220
1.605	80.1	-1.095	3.469	26.40	1.24
1.620	81.6	-1.162	3.565	26.70	1.23
1.640	83.8	-1.182	3.457	26.36	1.14
1.660	85.9	-1.025	3.523	26.57	1.34
1.680	88.0	-0.763	3.467	26.40	1.57
1.700	88.8	-0.820	3.639	26.93	1.62
1.720	89.5	-0.758	3.546	26.65	1.63
1.740	90.3	-0.961	3.383	26.12	1.31
1.760	91.0	-0.901	3.469	26.40	1.43
1.780	91.8	-1.158	3.628	26.90	1.28
1.800	92.5	-1.196	3.791	27.39	1.34
1.820	93.3	-1.354	3.889	27.67	1.24
1.840	94.0	-1.200	3.671	27.03	1.26
1.860	94.8	-1.366	4.001	27.99	1.30
1.880	95.5	-1.283	3.466	26.39	1.05
1.900	96.3	-1.243	3.352	26.02	1.01
1.920	97.0	-1.551	3.458	26.37	0.77
1.940	99.4	-1.391	3.510	26.53	0.97
1.960	101.7	-1.491	3.529	26.59	0.88
1.975	103.5	-1.263	3.451	26.34	1.06
1.985	104.7	-1.349
2.005	107.0	-1.247
2.015	108.2	-1.360	3.336	25.97	0.88
2.030	110.0	-1.098	3.319	25.91	1.13
2.050	112.3	-1.335	3.555	26.67	1.05
2.070	114.7	-1.534	3.388	26.14	0.74
2.090	117.0	-1.491	3.928	27.78	1.13
2.110	119.3	-1.516	3.802	27.42	1.03
2.130	121.7	-1.247	4.028	28.06	1.43
2.150	124.0	-2.036	4.009	28.01	0.63
2.170	128.5	-1.423	4.119	28.31	1.31
2.190	133.0	-1.053	4.296	28.78	1.77
2.210	133.7	-0.680	4.105	28.27	2.04
2.230	134.5	-0.530	3.718	27.17	1.96
2.250	135.2	-0.529	4.079	28.20	2.18
2.270	135.9	-0.517	3.720	27.18	1.98
2.290	136.6	-0.308	3.182	25.44	1.83
2.310	137.4	-0.349	3.320	25.91	1.88
2.330	138.1	-0.271	3.261	25.72	1.92
2.345	138.6	-0.099	2.985	24.73	1.89
2.365	139.4	-0.282	3.649	26.96	2.17
2.375	139.7	-0.472	3.366	26.07	1.79
2.385	140.1	-0.455	3.218	25.57	1.70
2.395	140.5	-0.252	3.532	26.60	2.12
2.410	141.0	0.090	3.460	26.37	2.42
2.430	143.1	-0.278	3.375	26.10	1.99
2.470	147.4	-0.221	2.974	24.69	1.76
2.490	149.6	-0.499	3.164	25.38	1.62
2.510	151.7	-0.436	3.086	25.10	1.63
2.530	153.9	-0.282	3.203	25.51	1.87
2.550	156.0	-0.476	3.108	25.18	1.60
2.570	157.3	-0.188	3.337	25.97	2.05
2.590	158.5	-0.081	3.169	25.40	2.04
2.610	159.8	-0.096	3.412	26.22	2.20
2.630	161.1	-0.078	3.453	26.35	2.24
2.650	162.3	-0.051	3.261	25.72	2.14
2.670	163.6	-0.005	3.214	25.56	2.15
2.690	164.9	0.086	3.120	25.22	2.17
2.710	166.1	-0.034	3.070	25.04	2.02
2.730	167.4	-0.459	3.300	25.85	1.76
2.750	168.7	-0.299	3.241	25.65	1.88
2.770	169.9	-0.454	3.327	25.94	1.78
2.790	171.2	-0.278	3.424	26.26	2.02
2.810	172.5	-0.251	3.569	26.72	2.15
2.830	173.7	-0.643	3.326	25.93	1.59
2.850	175.0	-0.905	3.208	25.53	1.25
2.870	176.3	-0.752	3.221	25.58	1.41
2.890	177.5	-0.737	3.471	26.41	1.60
2.910	178.8	-0.758	3.211	25.54	1.40
2.930	180.1	-0.606	3.313	25.89	1.62
2.950	181.3	-0.701	3.524	26.58	1.67
2.970	182.6	-0.741	3.094	25.13	1.33
2.985	183.6	-0.891	3.442	26.31	1.42
2.995	184.2	-0.800	3.053	24.98	1.24