Citation:

PANGAEA.962907

Name: Sediment geochemical and stable isotope data of sediment core GPC04 at the Ninetyeast Ridge, Indian Ocean
Published: 2023-11-03
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Bay of Bengal; Benthic foraminifera; Major element; Stable carbon and oxygen isotopes

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Abstract:

We investigated benthic foraminifera in cores GPC03 and GPC04 in the northeast tropical Indian Ocean (TIO) over the past ~450 ka to evaluate the ballasting effect of particulate organic matter (POM) and the long-term zonal change during the mid-Brunhes dissolution interval (MBDI). Today, interannual climate and oceanographic variability in the TIO is governed by the Indian Ocean Dipole (IOD), which manifests as asymmetric zonal oceanographic change. Here we provide our sediment geochemical, stable oxygen and carbon isotope data and faunal data of benthic foraminifera in core GPC04.

Keyword(s):

Bay of Bengal; Benthic foraminifera; Major element; Stable carbon and oxygen isotopes

Supplement to:

Takata, Hiroyuki; Khim, Boo-Keun; Hyeong, Kiseong; Seo, Inah; Huh, Youngsook; Asahi, Hirofumi; Seto, Koji (in review): Ballasting of particulate organic matter at the Ninetyeast Ridge during the mid-Brunhes dissolution interval and long-term implications for zonal change in tropical Indian oceanography. Paleogeography and Paleoclimatology

Related to:

Takata, Hiroyuki; Khim, Boo-Keun; Hyeong, Kiseong; Seo, Inah; Huh, Youngsook; Asahi, Hirofumi; Lee, Jongmin; Seto, Koji (2023): Occurrences of fossil benthic foraminifera in sediment core GPC04 at the Ninetyeast Ridge, Indian Ocean [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.962906

Coverage:

Latitude: 5.400000 * Longitude: 90.363000

Date/Time Start: 2018-07-01T00:00:00 * Date/Time End: 2018-07-01T00:00:00

Minimum DEPTH, sediment/rock: 0.00 m * Maximum DEPTH, sediment/rock: 5.00 m

Event(s):

HI1808_GPC04 * Latitude: 5.400000 * Longitude: 90.363000 * Date/Time: 2018-07-01T00:00:00 * Elevation: -2991.0 m * Method/Device: Piston corer (PC)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DEPTH, sediment/rock	Depth sed	m	Khim, Boo-Keun		Geocode
2	AGE	Age	ka BP	Asahi, Hirofumi	Oxygen isotope stratigraphy; Hidden Markov Model (HMM)	Geocode
3	Sodium oxide	Na2O	%	Takata, Hiroyuki	X-ray fluorescence (XRF), discrete measurement
4	Magnesium oxide	MgO	%	Takata, Hiroyuki	X-ray fluorescence (XRF), discrete measurement
5	Aluminium oxide	Al2O3	%	Takata, Hiroyuki	X-ray fluorescence (XRF), discrete measurement
6	Silicon dioxide	SiO2	%	Takata, Hiroyuki	X-ray fluorescence (XRF), discrete measurement
7	Phosphorus pentoxide	P2O5	%	Takata, Hiroyuki	X-ray fluorescence (XRF), discrete measurement
8	Sulfur	S	%	Takata, Hiroyuki	X-ray fluorescence (XRF), discrete measurement
9	Potassium oxide	K2O	%	Takata, Hiroyuki	X-ray fluorescence (XRF), discrete measurement
10	Calcium oxide	CaO	%	Takata, Hiroyuki	X-ray fluorescence (XRF), discrete measurement
11	Titanium dioxide	TiO2	%	Takata, Hiroyuki	X-ray fluorescence (XRF), discrete measurement
12	Manganese oxide	MnO	%	Takata, Hiroyuki	X-ray fluorescence (XRF), discrete measurement
13	Iron oxide, Fe2O3	Fe2O3	%	Takata, Hiroyuki	X-ray fluorescence (XRF), discrete measurement
14	Principal component loading of PC axis 1	PC axis 1		Takata, Hiroyuki	Principal component analyses (PCA)	PC axis 1
15	Trilobatus sacculifer, δ18O	T. sacculifer δ18O	‰ PDB	Khim, Boo-Keun	Isotope ratio mass spectrometry
16	Trilobatus sacculifer, δ13C	T. sacculifer δ13C	‰ PDB	Khim, Boo-Keun	Isotope ratio mass spectrometry

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

1364 data points

Data

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

1 Depth sed [m]	2 Age [ka BP]	3 Na2O [%]	4 MgO [%]	5 Al2O3 [%]	6 SiO2 [%]	7 P2O5 [%]	8 S [%]	9 K2O [%]	10 CaO [%]	11 TiO2 [%]	12 MnO [%]	13 Fe2O3 [%]	14 PC axis 1	15 T. sacculifer δ18O [‰ PDB]	16 T. sacculifer δ13C [‰ PDB]
0.00	0.00	2.83	1.26	6.88	40.73	-0.02	0.73	1.03	37.34	0.22	0.07	1.58	2.53	-1.84	1.73
0.05	3.86	2.79	1.37	7.44	42.54	-0.02	0.71	1.18	35.57	0.23	0.09	1.92	0.88	-2.07	1.64
0.10	7.71	2.61	1.40	7.87	43.04	-0.02	0.71	1.27	33.46	0.23	0.19	2.03	-0.23	-2.13	1.76
0.15	12.85	2.69	1.32	7.75	42.95	-0.02	0.71	1.25	34.17	0.23	0.14	1.97	0.09	-1.00	1.55
0.20	16.71	2.23	1.47	7.71	43.05	-0.02	0.70	1.31	34.17	0.23	0.13	2.07	-0.24	-0.73	1.48
0.25	20.57	2.37	1.56	7.87	43.64	-0.02	0.69	1.37	34.32	0.23	0.09	2.34	-1.02	-0.53	1.70
0.30	24.42	1.86	1.43	7.96	44.13	-0.02	0.70	1.36	32.09	0.23	0.08	2.50	-1.35	-0.40	1.56
0.35	28.28	2.07	1.43	7.69	43.24	-0.02	0.70	1.28	33.36	0.23	0.02	2.17	-0.26	-0.69	1.72
0.40	32.13	2.17	1.52	7.89	43.98	-0.02	0.70	1.34	32.72	0.23	0.04	2.44	-1.10	-0.64	1.66
0.45	35.99	2.45	1.41	7.69	43.28	-0.02	0.70	1.27	33.29	0.23	0.03	2.13	-0.24	-0.61	1.74
0.50	39.85	2.32	1.42	7.75	43.54	-0.02	0.70	1.31	34.27	0.23	0.03	2.27	-0.38	-0.81	1.68
0.55	43.70	2.67	1.55	7.60	43.72	-0.01	0.69	1.28	32.54	0.23	0.03	2.19	-0.52	-0.76	1.74
0.60	47.56	2.34	1.31	7.40	42.63	-0.02	0.70	1.26	36.56	0.23	0.02	1.87	1.00
0.65	51.41	2.32	1.32	7.55	43.67	-0.02	0.69	1.35	32.76	0.23	0.03	1.98	0.02	-0.85	1.57
0.70	53.98	2.43	1.28	7.39	42.97	-0.02	0.70	1.24	35.43	0.23	0.03	1.85	0.83	-0.96	1.47
0.75	57.84	2.67	1.51	7.54	44.26	-0.02	0.69	1.31	32.12	0.23	0.04	3.07	-1.16	-0.97	1.53
0.80	61.70	2.25	1.56	7.91	45.05	-0.02	0.70	1.42	30.26	0.23	0.03	2.49	-1.76	-0.99	1.34
0.85	66.84	1.95	1.63	8.60	46.74	-0.02	0.70	1.67	26.57	0.24	0.04	2.90	-3.96	-0.76	1.46
0.90	71.98	2.03	1.45	8.36	47.32	-0.02	0.70	1.76	26.55	0.24	0.03	2.46	-3.19	-0.79	1.54
0.95	79.69	2.53	1.20	7.96	48.54	-0.02	0.70	1.95	23.46	0.23	0.04	1.94	-2.44	-1.28	1.54
1.15	86.12	2.68	0.79	9.18	57.15	-0.01	0.67	2.77	8.92	0.23	0.08	3.57	-8.10
1.20	92.54	5.63	1.55	7.20	41.54	-0.02	0.67	1.26	34.65	0.23	0.03	2.16	0.53	-1.20	1.60
1.25	98.97	1.87	1.26	6.91	40.57	-0.02	0.69	1.21	41.42	0.22	0.04	1.47	2.70	-1.52	1.45
1.30	105.40	1.67	1.31	7.46	42.39	-0.02	0.71	1.25	36.00	0.23	0.03	1.78	0.91	-1.61	1.51
1.35	113.11	1.90	1.30	7.59	42.93	-0.02	0.67	1.38	34.85	0.23	0.03	2.18	-0.07	-1.50	1.78
1.40	119.54	2.25	1.38	8.10	44.21	-0.01	0.68	1.44	32.43	0.23	0.03	2.22	-1.06	-1.92	1.30
1.45	127.25	1.98	1.46	8.51	45.51	-0.02	0.70	1.54	30.83	0.24	0.04	2.74	-2.67	-1.58	0.94
1.50	133.68	2.49	1.19	9.00	52.12	0.00	0.68	2.32	19.35	0.23	0.04	2.69	-5.56	-0.87	1.02
1.55	140.10	1.84	1.39	7.57	43.37	-0.02	0.69	1.44	33.78	0.23	0.03	2.46	-0.67	-0.29	1.24
1.60	146.53	2.10	1.61	7.93	44.19	-0.02	0.69	1.47	33.35	0.23	0.03	2.37	-1.43	-0.74	1.38
1.65	152.96	1.64	1.65	8.37	45.72	-0.02	0.70	1.57	29.90	0.24	0.04	2.79	-3.11	-0.80	1.30
1.70	158.10	2.29	1.73	7.85	43.89	-0.02	0.69	1.46	31.79	0.23	0.03	2.58	-1.83	-0.79	1.15
1.75	164.52	1.96	1.57	7.80	43.75	-0.02	0.71	1.49	32.89	0.23	0.03	2.26	-1.14	-0.64	1.42
1.80	169.67	2.22	1.43	7.50	42.81	-0.02	0.70	1.28	35.18	0.23	0.03	1.91	0.47	-1.05	1.29
1.85	174.81	2.23	1.70	8.00	44.65	-0.02	0.70	1.48	31.41	0.23	0.04	3.00	-2.25	-1.35	1.23
1.90	178.66	1.80	1.48	7.49	42.48	-0.01	0.71	1.32	35.33	0.23	0.04	1.87	0.42	-1.26	1.08
1.95	183.80	1.83	1.45	7.15	41.24	-0.01	0.69	1.34	37.23	0.23	0.04	1.98	0.94	-0.95	1.37
2.00	188.95	2.24	1.37	7.15	41.32	-0.02	0.70	1.23	37.53	0.23	0.04	1.78	1.49	-1.23	1.36
2.05	192.80	2.01	1.39	7.95	43.85	-0.02	0.69	1.42	32.92	0.23	0.04	2.19	-0.86	-1.29	1.43
2.10	196.66	2.17	1.35	7.73	43.01	-0.02	0.69	1.33	35.53	0.23	0.04	2.08	0.11	-1.56	1.43
2.15	201.80	1.81	1.36	6.97	41.90	-0.02	0.71	1.37	35.67	0.23	0.04	2.65	0.56	-1.30	1.49
2.20	204.37	2.01	1.25	6.56	39.01	-0.01	0.69	1.12	40.12	0.22	0.04	1.19	3.57	-1.46	1.63
2.25	206.94	4.61	1.40	6.58	38.85	-0.02	0.67	1.05	38.61	0.22	0.04	1.28	3.09	-1.40	1.55
2.30	210.80	2.45	1.36	7.18	41.34	-0.02	0.71	1.22	37.09	0.22	0.04	1.57	1.72	-1.75	1.53
2.35	215.94	8.03	1.58	7.58	42.57	-0.02	0.67	1.31	31.57	0.23	0.04	2.23	-0.45	-1.61	1.17
2.40	219.79	2.42	1.52	7.88	44.06	-0.01	0.68	1.42	31.31	0.23	0.04	2.16	-1.03	-1.40	1.22
2.45	223.65	2.20	1.51	7.74	43.87	-0.02	0.70	1.47	31.49	0.23	0.04	2.27	-1.20	-0.99	1.51
2.50	227.51	1.93	1.34	7.23	41.16	-0.02	0.70	1.35	37.35	0.23	0.05	1.85	1.07	-1.15	1.54
2.55	230.72	1.69	1.26	6.68	39.86	-0.02	0.69	1.23	39.10	0.22	0.05	2.11	2.09
2.60	233.93	2.00	1.21	6.69	39.25	-0.02	0.69	1.13	40.47	0.22	0.04	1.22	3.44	-1.32	1.40
2.65	237.79	1.48	1.36	7.65	43.33	-0.02	0.69	1.40	32.18	0.23	0.04	2.74	-0.87	-1.72	1.45
2.70	241.65	2.37	1.38	7.90	43.08	-0.02	0.70	1.34	34.68	0.23	0.04	1.93	-0.23	-1.33	1.22
2.75	245.50	2.27	1.39	7.67	42.51	-0.02	0.72	1.33	35.92	0.23	0.04	1.93	0.41	-0.89	1.18
2.80	248.07	2.21	1.30	7.47	42.23	-0.02	0.69	1.35	35.09	0.23	0.04	1.79	0.69	-0.86	1.16
2.85	250.64	2.27	1.40	7.52	42.36	-0.02	0.69	1.36	35.22	0.23	0.04	1.79	0.48	-0.66	1.26
2.90	254.50	2.50	1.56	7.31	44.19	-0.02	0.69	1.46	29.61	0.23	0.06	3.11	-1.27	-0.65	1.26
2.95	257.07	2.39	1.41	7.44	43.22	-0.02	0.71	1.50	32.82	0.23	0.06	2.13	-0.26	-0.85	1.07
3.00	259.64	2.11	1.29	7.43	42.44	-0.02	0.72	1.34	35.76	0.23	0.06	1.76	0.90	-1.05	0.99
3.05	261.57	2.20	1.34	7.14	41.77	-0.02	0.71	1.27	36.62	0.23	0.06	1.76	1.31
3.10	263.50	2.17	1.34	7.66	43.17	-0.02	0.70	1.37	33.42	0.23	0.06	1.78	0.09	-0.93	1.12
3.15	267.35	2.01	1.60	8.39	45.55	-0.02	0.69	1.62	28.08	0.24	0.05	2.92	-3.35	-0.88	1.05
3.20	269.92	1.71	1.59	8.72	46.32	-0.02	0.70	1.67	25.79	0.24	0.07	3.48	-4.74	-0.56	1.33
3.25	272.49	1.51	1.41	8.40	45.38	-0.02	0.72	1.63	27.46	0.24	0.05	3.08	-3.32	-0.78	1.13
3.30	275.06	1.64	1.46	8.13	44.82	-0.02	0.71	1.57	29.65	0.24	0.05	2.70	-2.38	-0.86	1.43
3.35	277.63	1.96	1.37	7.71	43.35	-0.02	0.70	1.42	32.49	0.23	0.06	2.17	-0.70	-0.90	1.42
3.40	280.21	1.99	1.26	7.27	42.52	-0.02	0.73	1.35	34.20	0.23	0.06	2.60	0.29	-1.08	1.26
3.45	284.06	1.63	1.30	7.01	41.90	-0.02	0.70	1.27	35.43	0.22	0.05	2.30	1.01	-1.60	1.38
3.50	286.63	1.88	1.23	7.27	42.16	-0.02	0.70	1.25	35.25	0.23	0.06	1.83	1.16	-1.72	1.41
3.55	289.20	1.92	1.19	7.13	41.49	-0.02	0.69	1.24	35.70	0.22	0.05	1.73	1.59	-1.38	1.67
3.60	291.77	1.38	1.10	6.52	39.49	-0.01	0.70	1.09	40.23	0.22	0.05	1.36	3.60	-1.36	1.37
3.65	295.63	1.51	1.00	6.16	38.17	-0.02	0.69	1.01	42.73	0.22	0.05	1.02	5.00	-1.41	1.31
3.70	298.20	1.36	1.10	5.86	38.17	-0.02	0.68	1.04	42.82	0.22	0.07	2.14	4.27	-1.18	1.29
3.75	300.77	4.16	1.12	5.68	36.69	-0.02	0.67	0.93	43.57	0.21	0.05	1.18	5.63	-1.24	1.28
3.80	304.63	1.26	0.99	6.19	38.40	-0.02	0.71	1.02	42.67	0.22	0.05	1.07	4.83	-1.42	1.21
3.85	307.20	1.67	1.11	6.83	40.37	-0.02	0.70	1.18	38.91	0.22	0.05	1.40	2.82	-1.44	1.31
3.90	309.77	1.35	1.05	6.98	40.68	-0.02	0.71	1.23	36.64	0.22	0.05	1.49	2.33	-1.42	1.24
3.95	312.34	1.58	1.11	7.33	41.81	-0.02	0.75	1.27	35.85	0.23	0.04	1.81	1.42	-1.61	1.52
4.00	314.91	1.79	1.22	7.05	40.71	-0.02	0.73	1.20	36.18	0.22	0.04	1.64	1.99	-1.91	1.41
4.05	320.05	1.69	1.07	6.53	39.07	-0.01	0.69	1.15	40.96	0.22	0.04	1.44	3.52	-1.31	1.46
4.10	321.34	1.34	0.94	6.12	37.33	-0.02	0.69	0.96	44.40	0.22	0.04	0.91	5.48	-1.57	1.27
4.15	325.19	1.43	0.98	6.40	38.47	-0.02	0.70	1.08	43.82	0.22	0.05	1.16	4.55	-1.79	1.10
4.20	330.33	1.93	1.31	7.26	41.15	-0.02	0.72	1.22	36.31	0.23	0.04	1.74	1.40	-1.90	1.03
4.25	334.19	1.57	1.23	7.96	43.71	-0.02	0.74	1.46	33.08	0.23	0.04	2.43	-0.87	-1.82	1.09
4.30	339.33	1.90	1.41	7.83	42.84	-0.02	0.70	1.40	35.32	0.23	0.05	2.12	-0.11	-0.71	1.08
4.35	345.76	1.62	1.48	8.11	44.35	-0.02	0.74	1.63	30.77	0.24	0.05	2.97	-2.39	-0.58	1.13
4.40	349.61	1.53	1.35	7.90	43.27	-0.02	0.70	1.43	33.24	0.23	0.05	2.25	-0.80	-0.76	1.19
4.45	354.76	1.79	1.40	7.66	42.94	-0.02	0.70	1.41	33.75	0.23	0.05	2.29	-0.42	-0.77	1.07
4.50	359.90	1.76	1.41	7.55	42.96	-0.02	0.70	1.41	33.70	0.23	0.04	2.38	-0.44	-0.76	1.09
4.55	365.04	1.67	1.42	8.06	44.29	-0.02	0.70	1.53	31.02	0.23	0.07	3.05	-2.16	-0.88	1.22
4.60	371.47	1.87	1.53	7.99	43.93	-0.02	0.69	1.46	31.94	0.23	0.04	2.82	-1.77	-0.68	1.77
4.65	377.89	1.67	1.26	7.67	42.83	-0.02	0.69	1.38	34.52	0.23	0.03	1.99	0.21	-1.22	1.50
4.70	385.60	1.45	1.22	7.80	43.00	-0.02	0.70	1.39	33.21	0.23	0.04	2.20	-0.38	-1.29	1.45
4.75	390.75	1.37	1.16	7.51	42.58	-0.02	0.72	1.36	34.21	0.23	0.04	2.06	0.58	-1.51	1.66
4.80	398.46	1.54	1.28	8.03	44.33	-0.02	0.72	1.54	30.27	0.24	0.05	2.69	-1.78	-1.61	1.34
4.85	415.17	1.66	1.25	7.89	43.51	-0.02	0.70	1.38	33.81	0.23	0.03	2.25	-0.52	-1.79	1.44
4.90	424.16	1.77	1.38	7.93	43.91	-0.02	0.70	1.44	31.22	0.23	0.04	2.61	-1.47	-0.98	1.19
4.95	429.31	1.85	1.40	8.08	44.45	-0.02	0.69	1.51	31.75	0.24	0.04	2.77	-1.93	-0.81	1.33
5.00	438.30	1.84	1.58	8.19	44.47	-0.02	0.68	1.52	30.74	0.24	0.04	2.78	-2.57	-0.30	1.32