Citation:

PANGAEA.962595

Name: Foraminifera boron isotope, sea surface temperature, salinity, pH and pCO2 data from the eastern Arabian Sea during the last glacial-interglacial interval
Published: 2023-11-03
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Arabian Sea; Atmospheric CO2; Boron isotope; CO2 source-sink; Glacial-Interglacial; Ocean pH

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Published: 2023-11-03 • DOI registered: 2023-11-13

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Abstract:

Data presented here are trace-elements and boron isotope composition of planktic foraminifera G. ruber (250-355 μm) along with reconstructed surface ocean temperature, salinity, pH and pCO2 for the past 136 Ka from the south-eastern Arabian Sea. Foraminifera cleaning was carried out using the method adopted from Barker et al. 2003. Boron was purified using the micro-distillation method (Misra et al., 2014a). Trace-element analysis (e.g. Mg/Ca) was carried out using the High-Resolution Inductively Coupled Plasma Mass Spectrometer (HR-ICPMS) (Misra et al., 2014b). Boron isotope analysis was carried out using Thermo Neptune Plus multi-collector inductively coupled plasma mass spectrometer (MC–ICPMS), following the method described in Tarique et al. 2021, and Lloyd et al. 2018. Sea surface temperature (SST) was calculated using the foraminifera Mg/Ca utilizing the method adapted from Gray and Evans 2019. Sea surface salinity (SSS) was calculated using the Mg/Ca derived SST, foraminifera d18O and regional seawater d18O and salinity relationship.

Keyword(s):

Arabian Sea; Atmospheric CO2; Boron isotope; CO2 source-sink; Glacial-Interglacial; Ocean pH

Supplement to:

Tarique, Mohd; Rahaman, Waliur; Lathika, N; Prabhat, Priyesh; Thamban, Meloth; Misra, Sambuddha (2023): Enhanced CO 2 Degassing From the Tropical Indian Ocean During Cold Climatic Events of the Last Glacial Cycle. Paleoceanography and Paleoclimatology, 38(12), e2022PA004570, https://doi.org/10.1029/2022PA004570

References:

Barker, S; Greaves, Mervyn; Elderfield, Henry (2003): A study of cleaning procedures used for foraminiferal Mg/Ca paleothermometry. Geochemistry, Geophysics, Geosystems, 4(9), https://doi.org/10.1029/2003GC000559

Gray, William Robert; Evans, David (2019): Nonthermal Influences on Mg/Ca in Planktonic Foraminifera: A Review of Culture Studies and Application to the Last Glacial Maximum. Paleoceanography and Paleoclimatology, 34(3), 306-315, https://doi.org/10.1029/2018PA003517

Lloyd, Nicholas S; Sadekov, Aleksey Y; Misra, Sambuddha (2018): Application of 10 13 ohm Faraday cup current amplifiers for boron isotopic analyses by solution mode and laser ablation multicollector inductively coupled plasma mass spectrometry. Rapid Communications in Mass Spectrometry, 32(1), 9-18, https://doi.org/10.1002/rcm.8009

Misra, Sambuddha; Greaves, Mervyn; Owen, Robert M; Kerr, Joanna; Elmore, Aurora C; Elderfield, Henry (2014): Determination of B/Ca of natural carbonates by HR-ICP-MS. Geochemistry, Geophysics, Geosystems, 15(4), 1617-1628, https://doi.org/10.1002/2013GC005049 (2014b)

Misra, Sambuddha; Owen, Robert M; Kerr, Joanna; Greaves, Mervyn; Elderfield, Henry (2014): Determination of δ11B by HR-ICP-MS from mass limited samples: Application to natural carbonates and water samples. Geochimica et Cosmochimica Acta, 140, 531-552, https://doi.org/10.1016/j.gca.2014.05.047 (2014a)

Tarique, Mohd; Rahaman, Waliur; Fousiya, A A; Lathika, N; Thamban, Meloth; Achyuthan, Hema; Misra, Sambuddha (2021): Surface pH Record (1990-2013) of the Arabian Sea From Boron Isotopes of Lakshadweep Corals - Trend, Variability, and Control. Journal of Geophysical Research: Biogeosciences, 126(7), https://doi.org/10.1029/2020JG006122

Coverage:

Latitude: 9.008889 * Longitude: 72.092222

Date/Time Start: 2005-06-01T12:00:00 * Date/Time End: 2005-06-01T12:00:00

Minimum DEPTH, sediment/rock: 0.045 m * Maximum DEPTH, sediment/rock: 3.270 m

Event(s):

SK221-05 * Latitude: 9.008889 * Longitude: 72.092222 * Date/Time: 2005-06-01T12:00:00 * Elevation: -2700.0 m * Location: Arabian Sea * Method/Device: Core drilling (CDRILL)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DEPTH, sediment/rock	Depth sed	m	Tarique, Mohd		Geocode
2	Depth, top/min	Depth top	m	Tarique, Mohd
3	Depth, bottom/max	Depth bot	m	Tarique, Mohd
4	AGE	Age	ka BP	Tarique, Mohd		Geocode
5	Magnesium/Calcium ratio	Mg/Ca	mmol/mol	Tarique, Mohd
6	Globigerinoides ruber, δ18O	G. ruber δ18O	‰ PDB	Tarique, Mohd
7	Sea surface temperature	SST	°C	Tarique, Mohd	Calculated, according to Gray and Evans (2019)	Based on Mg/Ca
8	Paleosalinity	PalSal		Tarique, Mohd	Calculated	PSU, calculated using the Mg/Ca derived SST, foraminifera d18O and regional seawater d18O and salinity relationship
9	Logarithmic base dissociation constant	pk (b)		Tarique, Mohd	Multi-collector ICP-MS (MC-ICP-MS), Neptune Plus, Thermo
10	δ11B, calcite	δ11B cal	‰ SRM	Tarique, Mohd	Multi-collector ICP-MS (MC-ICP-MS), Neptune Plus, Thermo	average
11	δ11B, calcite, standard deviation	δ11B, cal std dev	±	Tarique, Mohd	Calculated, 2 sigma
12	δ11B, borate	δ11B borate	‰ SRM	Tarique, Mohd	Multi-collector ICP-MS (MC-ICP-MS), Neptune Plus, Thermo
13	pH	pH		Tarique, Mohd	Reconstructed	average
14	pH, standard error	pH std e	±	Tarique, Mohd	Reconstructed
15	Carbon dioxide, partial pressure minimum	pCO2 min	ppmv	Tarique, Mohd	Reconstructed	lower95
16	Carbon dioxide, partial pressure	pCO2	ppmv	Tarique, Mohd	Reconstructed
17	Carbon dioxide, partial pressure maximum	pCO2 max	ppmv	Tarique, Mohd	Reconstructed	upper95
18	Δ carbon dioxide, partial pressure	ΔpCO2	ppmv	Tarique, Mohd	Reconstructed	average
19	Δ carbon dioxide, partial pressure, maximum	ΔpCO2 max	ppmv	Tarique, Mohd	Reconstructed	upper95
20	Δ carbon dioxide, partial pressure, minimum	ΔpCO2 min	ppmv	Tarique, Mohd	Reconstructed	lower95

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

1213 data points

Data

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

1 Depth sed [m]	2 Depth top [m]	3 Depth bot [m]	4 Age [ka BP]	5 Mg/Ca [mmol/mol]	6 G. ruber δ18O [‰ PDB]	7 SST [°C]	8 PalSal	9 pk (b)	10 δ11B cal [‰ SRM]	11 δ11B, cal std dev [±]	12 δ11B borate [‰ SRM]	13 pH	14 pH std e [±]	15 pCO2 min [ppmv]	16 pCO2 [ppmv]	17 pCO2 max [ppmv]	18 ΔpCO2 [ppmv]	19 ΔpCO2 max [ppmv]	20 ΔpCO2 min [ppmv]
0.045	0.04	0.05	3.94	4.24	-2.06	25.36	35.20	8.59	20.79	0.14	19.90	8.20	0.02	225.71	256.70	292.05	-18.33	17.02	-49.32
0.125	0.12	0.13	5.98	4.02	-2.23	24.32	34.39	8.61	20.63	0.28	19.68	8.20	0.04	200.15	260.55	337.94	-4.37	73.02	-64.77
0.165	0.16	0.17	7.01	4.16	-1.99	25.92	35.39	8.58	21.19	0.22	20.46	8.24	0.03	187.89	230.31	280.58	-27.50	22.77	-69.92
0.285	0.28	0.29	10.07	4.72	-1.87	27.83	36.03	8.56
0.325	0.32	0.33	11.09	4.46	-1.83	27.28	35.72	8.57	21.53	0.35	20.93	8.25	0.05	156.98	215.44	291.68	-49.36	26.88	-107.82
0.405	0.40	0.41	13.13	4.53	-0.66	26.64	37.07	8.57	21.14	0.38	20.39	8.21	0.06	169.38	241.13	336.30	6.24	101.41	-65.51
0.435	0.43	0.44	14.06	4.13	-0.93	26.41	36.36	8.57	21.89	0.06	21.43	8.30	0.01	176.71	188.81	202.03	-52.45	-39.23	-64.55
0.465	0.46	0.47	15.06	3.80	-0.79	25.16	35.98	8.59	21.76	0.28	21.25	8.30	0.04	146.68	189.15	242.03	-38.65	14.23	-81.12
0.495	0.49	0.50	16.06	3.80	-1.12	24.67	35.04	8.60	21.47	0.17	20.84	8.28	0.03	173.53	203.07	236.88	-21.28	12.53	-50.82
0.525	0.52	0.53	17.06	3.69	-0.29	24.16	36.17	8.60	21.40	0.27	20.75	8.27	0.04	160.66	205.66	260.88	2.83	58.05	-42.17
0.555	0.55	0.56	18.06	3.72	-0.69	24.67	35.57	8.60	21.80	0.29	21.30	8.31	0.04	141.28	184.16	235.84	-3.85	47.83	-46.73
0.625	0.62	0.63	20.40	3.85	-0.27	24.62	36.22	8.60
0.655	0.65	0.66	21.40	4.07	-0.07	24.95	36.64	8.59	21.01	0.15	20.20	8.22	0.02	207.33	238.81	274.63	52.08	87.90	20.60
0.675	0.67	0.68	22.07	3.52	0.13	22.86	36.13	8.62	21.07	0.41	20.29	8.26	0.06	150.31	219.94	314.73	32.24	127.03	-37.39
0.695	0.69	0.70	22.73	3.62	-0.23	23.37	35.67	8.61	21.21	0.20	20.48	8.27	0.03	176.45	212.56	254.52	22.85	64.81	-13.26
0.735	0.73	0.74	24.07	3.51	0.13	23.95	36.50	8.60	21.94	0.23	21.49	8.33	0.03	140.74	173.43	212.50	-11.19	27.88	-43.88
0.765	0.76	0.77	25.07	3.46	-0.25	23.61	35.74	8.61	21.59	0.15	21.01	8.30	0.02	165.86	190.21	217.98	9.54	37.31	-14.81
0.795	0.79	0.80	26.03	3.78	-0.52	25.04	35.88	8.59	21.81	0.70	21.31	8.31	0.10	98.64	185.75	334.12	1.23	149.60	-85.88
0.835	0.83	0.84	27.21	3.79	-0.45	25.18	36.13	8.59
0.855	0.85	0.86	27.80	3.76	-0.65	25.20	35.81	8.59	21.87	0.27	21.40	8.31	0.04	143.22	182.94	230.42	-4.99	42.49	-44.71
0.885	0.88	0.89	28.68	3.69	-0.55	24.75	35.87	8.60
0.915	0.91	0.92	29.56	3.50	-0.74	23.89	35.27	8.61	21.79	0.07	21.30	8.32	0.01	166.72	179.55	193.14	-9.69	3.90	-22.52
0.955	0.95	0.96	30.74	3.81	-0.69	24.37	35.60	8.60
0.975	0.97	0.98	31.33	3.58	-0.75	23.15	35.05	8.62	21.01	0.20	20.21	8.25	0.03	186.12	224.00	267.98	35.57	79.55	-2.31
1.010	1.00	1.02	31.99	4.17	-0.60	25.60	36.29	8.58
1.130	1.12	1.14	32.58	3.51	-0.36	23.17	35.80	8.61
1.210	1.20	1.22	32.97	3.55	-0.86	23.32	34.99	8.62
1.310	1.30	1.32	33.46	3.30	-1.08	22.63	34.35	8.63	21.47	0.28	20.85	8.31	0.04	148.15	190.12	242.84	-6.91	45.81	-48.88
1.410	1.40	1.42	33.95	3.70	-1.22	23.40	34.41	8.62	20.86	0.04	20.00	8.24	0.01	224.39	235.99	248.28	39.97	52.26	28.37
1.510	1.50	1.52	34.44	3.41	-1.26	22.94	34.15	8.63	21.43	0.31	20.79	8.30	0.05	147.58	194.39	254.88	-3.45	57.04	-50.26
1.590	1.58	1.60	34.83	3.81	-0.96	24.65	35.32	8.60
1.610	1.60	1.62	34.93	3.62	-1.34	23.92	34.37	8.61	21.52	0.17	20.92	8.30	0.02	166.62	194.35	225.87	-7.52	24.00	-35.25
1.650	1.64	1.66	35.03	3.71	-1.11	24.15	34.86	8.61	21.43	0.25	20.80	8.29	0.04	160.45	201.76	252.35	1.82	52.41	-39.49
1.690	1.68	1.70	35.60	3.75	-0.87	24.51	35.41	8.60
1.750	1.74	1.76	36.18	3.58	-1.40	23.67	34.17	8.62
1.810	1.80	1.82	36.75	4.00	-1.16	25.13	35.19	8.59
1.850	1.84	1.86	37.14	3.48	-1.16	23.21	34.47	8.62	21.30	0.08	20.62	8.29	0.01	187.78	203.77	221.03	-3.94	13.32	-19.93
1.910	1.90	1.92	37.71	3.84	-0.93	24.46	35.37	8.60
1.970	1.96	1.98	47.06	3.81	-1.48	24.97	34.90	8.60
1.990	1.98	2.00	56.03	3.74	0.17	25.03	37.75	8.58	21.97	0.13	21.55	8.31	0.02	157.86	178.03	200.22	-31.29	-9.10	-51.46
2.010	2.00	2.02	65.00	3.82	-0.61	25.56	36.52	8.58	22.12	0.17	21.75	8.33	0.02	147.40	172.07	199.84	-27.75	0.02	-52.42
2.050	2.04	2.06	68.78	3.66	-0.87	24.37	35.82	8.60	21.46	0.40	20.83	8.28	0.06	140.61	201.47	286.14	-2.65	82.02	-63.51
2.070	2.06	2.08	70.67	3.94	-1.19	25.33	35.82	8.59	21.57	0.15	20.99	8.28	0.02	174.60	201.14	231.44	-21.53	8.77	-48.07
2.110	2.10	2.12	74.44	3.73	-1.79	24.03	34.59	8.61	21.22	0.44	20.50	8.27	0.07	143.90	215.20	315.22	-23.25	76.77	-94.55
2.130	2.12	2.14	76.33	3.66	-1.12	25.02	36.21	8.59	21.88	0.18	21.41	8.31	0.03	154.73	181.77	212.85	-57.33	-26.25	-84.37
2.170	2.16	2.18	80.11	3.87	-1.27	24.80	35.86	8.60	21.21	0.15	20.49	8.25	0.02	192.66	221.67	255.08	-10.95	22.46	-39.96
2.190	2.18	2.20	82.00	3.92	-1.96	24.78	34.66	8.60
2.230	2.22	2.24	82.91	3.79	-1.76	24.45	34.93	8.60	21.16	0.11	20.42	8.25	0.02	199.47	221.87	246.69	-23.53	1.29	-45.93
2.250	2.24	2.26	83.36	4.04	-1.56	24.72	35.36	8.60	20.92	0.54	20.09	8.22	0.08	144.95	241.95	389.54	-4.88	142.71	-101.88
2.290	2.28	2.30	84.27	3.92	-1.40	24.78	35.62	8.60	21.22	0.09	20.50	8.25	0.01	202.33	220.46	240.14	-24.30	-4.62	-42.43
2.350	2.34	2.36	85.64	3.99	-1.34	24.86	35.68	8.60	20.97	0.46	20.15	8.22	0.07	154.62	240.36	361.41	8.76	129.81	-76.98
2.370	2.36	2.38	86.09	3.85	-1.29	24.37	35.53	8.60
2.410	2.40	2.42	86.91	4.21	-1.06	25.25	36.21	8.59	20.76	0.06	19.86	8.20	0.01	242.87	260.05	278.11	38.48	56.54	21.30
2.430	2.42	2.44	87.81	3.97	-1.25	25.83	36.05	8.58	21.72	0.05	21.19	8.29	0.01	184.48	195.38	206.65	-25.85	-14.58	-36.75
2.470	2.46	2.48	89.61	3.91	-1.30	25.07	35.72	8.59	21.42	0.20	20.78	8.27	0.03	174.04	209.38	250.22	-19.21	21.63	-54.55
2.490	2.48	2.50	90.51	4.03	-1.58	25.15	35.27	8.59	21.23	0.14	20.51	8.25	0.02	195.28	222.61	253.19	-7.81	22.77	-35.14
2.530	2.52	2.54	92.31	4.00	-1.74	25.57	35.15	8.59	21.45	0.23	20.83	8.27	0.03	170.70	209.60	255.63	-23.50	22.53	-62.40
2.550	2.54	2.56	93.21	4.40	-1.81	25.41	34.97	8.59	20.55	0.14	19.56	8.18	0.02	242.38	278.28	318.98	43.89	84.59	7.99
2.590	2.58	2.60	95.01	3.91	-1.84	24.05	34.52	8.61	20.69	0.45	19.77	8.21	0.07	165.99	253.57	381.13	10.83	138.39	-76.75
2.610	2.60	2.62	96.00	3.93	-1.93	24.20	34.51	8.61	20.84	0.33	19.98	8.23	0.05	178.68	243.23	329.19	-2.91	83.05	-67.46
2.650	2.64	2.66	97.86	3.97	-1.90	25.21	35.05	8.59
2.670	2.66	2.68	98.79	4.11	-1.83	25.83	35.45	8.59	21.40	0.22	20.75	8.26	0.03	177.01	215.38	260.96	-27.75	17.83	-66.12
2.710	2.70	2.72	100.64	3.87	-1.89	24.99	35.02	8.60	21.31	0.10	20.63	8.26	0.01	195.99	214.98	235.65	-32.51	-11.84	-51.50
2.770	2.76	2.78	103.43	3.85	-1.61	24.64	35.21	8.60	21.06	0.17	20.28	8.24	0.03	197.21	230.96	269.51	-10.61	27.94	-44.36
2.790	2.78	2.80	104.36	4.12	-1.75	25.79	35.36	8.59	21.42	0.05	20.77	8.26	0.01	200.82	213.52	226.87	-25.52	-12.17	-38.22
2.810	2.80	2.82	105.29	3.89	-1.71	25.22	35.16	8.59	21.45	0.22	20.83	8.27	0.03	170.17	207.64	251.39	-38.56	5.19	-76.03
2.890	2.88	2.90	109.00	4.34	-1.55	26.47	35.78	8.58	21.39	0.14	20.73	8.25	0.02	193.09	220.37	250.87	-22.65	7.85	-49.93
2.950	2.94	2.96	117.40	4.21	-2.37	26.06	34.70	8.59	21.29	0.16	20.60	8.25	0.02	191.03	222.88	258.27	-51.62	-16.23	-83.47
2.970	2.96	2.98	120.20	4.83	-2.62	28.47	35.39	8.56	21.63	0.19	21.07	8.25	0.03	181.10	215.68	256.22	-54.18	-13.64	-88.76
3.010	3.00	3.02	123.92	4.45	-1.95	26.98	35.94	8.57	21.24	0.22	20.52	8.23	0.03	191.27	234.68	286.56	-41.04	10.84	-84.45
3.030	3.02	3.04	124.85	4.59	-2.46	27.55	35.19	8.57	21.38	0.28	20.72	8.24	0.04	176.48	227.05	290.11	-48.56	14.50	-99.13
3.070	3.06	3.08	126.69	4.82	-1.83	28.19	36.29	8.55
3.090	3.08	3.10	127.62	4.73	-2.23	27.91	35.33	8.56	21.49	0.21	20.87	8.24	0.03	183.61	222.10	267.33	-54.59	-9.36	-93.08
3.130	3.12	3.14	129.46	4.20	-0.91	26.20	36.53	8.58	21.54	0.09	20.95	8.26	0.01	192.04	208.91	227.13	-54.35	-36.13	-71.22
3.150	3.14	3.16	130.39	4.22	-0.93	26.26	36.31	8.58
3.190	3.18	3.20	132.23	4.14	-0.71	26.06	36.22	8.58	21.66	0.31	21.12	8.28	0.04	151.79	200.62	262.83	-30.18	32.03	-79.01
3.210	3.20	3.22	133.15	4.04	-0.70	25.66	35.91	8.58	21.69	0.10	21.16	8.29	0.01	178.33	195.78	214.58	-28.36	-9.56	-45.81
3.250	3.24	3.26	135.00	4.21	-0.69	26.90	36.28	8.57	22.13	0.22	21.76	8.31	0.03	145.53	177.70	215.69	-32.70	5.29	-64.87
3.270	3.26	3.28	135.92	3.87	-0.23	25.43	36.52	8.58	21.79	0.33	21.30	8.30	0.05	140.50	189.41	251.35	-17.08	44.86	-65.99