Citation:

PANGAEA.987152

Name: Elemental and Molybdenum Isotopic Composition of Sediments from the North and South Pacific Gyres
Published: 2025-11-03
License: https://creativecommons.org/licenses/by/4.0/

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Published: 2025-11-03 • DOI registered: 2025-12-02

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Abstract:

This dataset contains molybdenum isotope (δ⁹⁸Mo) compositions and elemental concentration data (Al, Fe, Mn, Mo) from two oxic pelagic sediment cores covering approximately 90 million years of sedimentation. The data were generated in 2023 and 2024. Core LL44-GPC3 (30.33, -157.83) was recovered from the North Pacific Gyre, and core U1366F (-26.05, -156.89) was recovered from the South Pacific Gyre. Both cores are characterised by oxygenated pore waters in their entire length. All analyses were performed at GEOMAR Helmholtz Centre for Ocean Research Kiel (Germany). Bulk sediment samples were analysed for δ⁹⁸Mo using multi-collector inductively coupled plasma mass spectrometry (MC-ICP-MS), while elemental concentrations were determined by ICP-OES and ICP-MS. The data document the variability of δ⁹⁸Mo in oxic marine sediments and can be used to support studies of molybdenum isotope systematics and sedimentary diagenesis in marine environments.

Funding:

German Research Foundation (DFG), grant/award no. FR1198/17-1 : Pliocene to Pleistocene reconstruction of regional versus global ocean oxygenation from eastern Pacific anoxic sediments (IODP priority program 527)

Coverage:

Median Latitude: 2.140153 * Median Longitude: -157.363297 * South-bound Latitude: -26.051393 * West-bound Longitude: -157.831700 * North-bound Latitude: 30.331700 * East-bound Longitude: -156.894895

Minimum DEPTH, sediment/rock: 0.02 m * Maximum DEPTH, sediment/rock: 28.03 m

Event(s):

329-U1366F * Latitude: -26.051393 * Longitude: -156.894895 * Elevation: -5127.0 m * Recovery: 30.15 m * Campaign: (South Pacific Gyre Microbiology) * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL)

LL44-GPC-3 * Latitude: 30.331700 * Longitude: -157.831700 * Elevation: -5705.0 m * Location: Central North Pacific * Method/Device: Piston corer (PC)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Fraga-Ferreira, Paula Luiza
2	Campaign	Campaign		Fraga-Ferreira, Paula Luiza
3	Site	Site		Fraga-Ferreira, Paula Luiza
4	Hole	H		Fraga-Ferreira, Paula Luiza
5	Core	Core		Fraga-Ferreira, Paula Luiza
6	Section	Sect		Fraga-Ferreira, Paula Luiza
7	Depth, top/min	Depth top	m	Fraga-Ferreira, Paula Luiza
8	Depth, bottom/max	Depth bot	m	Fraga-Ferreira, Paula Luiza
9	DEPTH, sediment/rock	Depth sed	m	Fraga-Ferreira, Paula Luiza		Geocode
10	Aluminium	Al	mg/g	Fraga-Ferreira, Paula Luiza	ICP-OES, VARIAN 720-ES
11	Iron	Fe	mg/g	Fraga-Ferreira, Paula Luiza	ICP-OES, VARIAN 720-ES
12	Manganese	Mn	mg/g	Fraga-Ferreira, Paula Luiza	ICP-OES, VARIAN 720-ES
13	Molybdenum	Mo	µg/g	Fraga-Ferreira, Paula Luiza	ICP-MS, Agilent 7500c
14	δ98Mo	δ98Mo	‰	Fraga-Ferreira, Paula Luiza	MC-ICP-MS

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

1023 data points

Data

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

1 Event	2 Campaign	3 Site	4 H	5 Core	6 Sect	7 Depth top [m]	8 Depth bot [m]	9 Depth sed [m]	10 Al [mg/g]	11 Fe [mg/g]	12 Mn [mg/g]	13 Mo [µg/g]	14 δ98Mo [‰]
329-U1366F	329	U1366	F	1H	1	0.13	0.14	0.13	80.72	61.13	13.20	28.88	-0.42
329-U1366F	329	U1366	F	1H	1	0.40	0.41	0.40	86.30	64.32	13.74	30.22	-0.64
329-U1366F	329	U1366	F	1H	1	1.45	1.46	1.45	80.44	61.04	12.26	37.08	-0.43
329-U1366F	329	U1366	F	1H	2	1.02	1.03	2.52	82.35	65.17	12.91	40.63	-0.45
329-U1366F	329	U1366	F	1H	2	1.25	1.26	2.75	89.05	68.26	13.09	45.69	-0.28
329-U1366F	329	U1366	F	1H	2	1.40	1.41	2.90	83.37	62.86	12.13	48.17	0.07
329-U1366F	329	U1366	F	1H	3	0.56	0.57	3.56	97.33	71.10	13.16	47.93	-0.11
329-U1366F	329	U1366	F	1H	3	0.99	1.00	3.99	84.08	65.41	10.52	39.32	-0.18
329-U1366F	329	U1366	F	1H	3	1.40	1.41	4.40	95.83	68.64	12.77	59.13	0.05
329-U1366F	329	U1366	F	1H	4	0.30	0.31	4.80	99.84	67.96	12.45	49.54	-0.02
329-U1366F	329	U1366	F	1H	4	0.55	0.56	5.05	85.35	59.64	10.46	47.32	0.12
329-U1366F	329	U1366	F	1H	4	0.90	0.91	5.40	98.64	67.37	12.22	55.90	0.08
329-U1366F	329	U1366	F	2H	1	0.50	0.51	6.00	96.78	64.60	12.30	45.73	-0.21
329-U1366F	329	U1366	F	2H	1	0.70	0.71	6.20	97.29	62.22	13.50	54.37	-0.03
329-U1366F	329	U1366	F	2H	1	1.00	1.01	6.50	84.19	57.98	11.50	50.41	0.20
329-U1366F	329	U1366	F	2H	2	0.02	0.03	7.02	91.18	70.49	15.35	62.17	-0.21
329-U1366F	329	U1366	F	2H	2	0.25	0.26	7.25	93.07	72.59	14.96	60.69	-0.15
329-U1366F	329	U1366	F	2H	2	0.45	0.46	7.45	78.91	62.54	13.69	68.84	0.10
329-U1366F	329	U1366	F	2H	2	0.70	0.71	7.70	93.39	70.11	15.25	64.37	-0.04
329-U1366F	329	U1366	F	2H	2	1.00	1.01	8.00	93.28	71.15	17.26	71.30	-0.01
329-U1366F	329	U1366	F	2H	2	1.20	1.21	8.20	92.03	66.28	17.51	59.88	-0.11
329-U1366F	329	U1366	F	2H	2	1.45	1.46	8.45	81.16	63.79	19.43	77.73	0.10
329-U1366F	329	U1366	F	2H	3	1.20	1.21	9.70	79.28	96.40	29.87	115.34	-0.10
329-U1366F	329	U1366	F	2H	3	1.30	1.31	9.80	68.55	89.34	28.30	114.31	-0.15
329-U1366F	329	U1366	F	2H	4	0.10	0.11	10.10	65.25	101.63	26.04	112.49	-0.12
329-U1366F	329	U1366	F	2H	4	0.80	0.81	10.80	67.88	155.62	26.66	118.87	-0.23
329-U1366F	329	U1366	F	2H	4	1.40	1.41	11.40	50.47	164.08	32.97	132.07	-0.13
329-U1366F	329	U1366	F	2H	5	0.33	0.34	11.83	50.24	211.64	36.87	122.91	-0.14
329-U1366F	329	U1366	F	2H	5	0.50	0.51	12.00	48.01	208.64	37.43	139.08	-0.18
329-U1366F	329	U1366	F	2H	5	0.70	0.71	12.20	66.55	80.41	25.51	99.56	-0.21
329-U1366F	329	U1366	F	2H	5	1.00	1.01	12.50	64.66	48.70	24.06	81.75	-0.06
329-U1366F	329	U1366	F	2H	5	1.30	1.31	12.80	81.41	49.02	22.49	71.77	-0.12
329-U1366F	329	U1366	F	2H	6	0.30	0.31	13.30	59.49	87.27	26.52	92.65	-0.10
329-U1366F	329	U1366	F	2H	6	0.50	0.51	13.50	50.44	84.38	28.81	95.61	-0.15
329-U1366F	329	U1366	F	3H	1	0.22	0.23	14.20	61.29	131.11	30.46	112.57	-0.16
329-U1366F	329	U1366	F	3H	1	0.44	0.45	14.44	64.78	146.38	29.81	116.72	-0.13
329-U1366F	329	U1366	F	3H	1	1.00	1.01	15.00	56.57	63.82	23.59	75.72	-0.04
329-U1366F	329	U1366	F	3H	2	0.50	0.51	16.00	35.88	113.54	31.07	97.06	0.13
329-U1366F	329	U1366	F	3H	2	1.45	1.46	16.95	33.81	116.07	63.72	115.50	0.30
329-U1366F	329	U1366	F	3H	3	1.00	1.01	18.00	14.98	99.94	27.33	55.99	0.56
329-U1366F	329	U1366	F	3H	4	1.20	1.21	19.80	15.27	144.56	45.44	123.52	1.37
329-U1366F	329	U1366	F	3H	5	0.29	0.30	20.29	10.83	190.63	58.48	213.65	1.50
329-U1366F	329	U1366	F	3H	5	1.46	1.47	21.46	8.39	209.97	65.23	216.40	1.38
329-U1366F	329	U1366	F	3H	6	1.00	1.01	22.50	11.07	314.71	95.87	15.07	1.42
329-U1366F	329	U1366	F	4H	1	0.10	0.11	23.60	17.73	308.08	95.21	13.00	1.46
329-U1366F	329	U1366	F	4H	1	1.00	1.01	24.50	8.60	197.14	66.75	158.09	1.63
329-U1366F	329	U1366	F	4H	2	0.45	0.46	25.45	8.30	235.11	73.21	172.75	1.69
329-U1366F	329	U1366	F	4H	2	1.45	1.46	26.45	9.03	229.62	75.26	170.42	1.48
329-U1366F	329	U1366	F	4H	3	0.93	0.94	27.43	6.54	275.21	93.21	228.76	1.21
329-U1366F	329	U1366	F	4H	4	0.03	0.04	28.03	11.04	200.39	78.42	30.98	1.21
LL44-GPC-3	LL44	GPC-3				0.01	0.02	0.02	95.12	55.06	3.19	7.21	-0.61
LL44-GPC-3	LL44	GPC-3				0.50	0.51	0.51	97.13	56.19	3.40	10.60	-0.40
LL44-GPC-3	LL44	GPC-3				1.00	1.01	1.01	96.52	56.00	2.42	9.43	-0.32
LL44-GPC-3	LL44	GPC-3				1.50	1.51	1.51	96.15	55.52	3.64	12.53	-0.48
LL44-GPC-3	LL44	GPC-3				2.00	2.01	2.01	90.74	52.58	3.04	12.22	-0.07
LL44-GPC-3	LL44	GPC-3				2.50	2.51	2.51	94.79	55.08	3.26	12.18	-0.07
LL44-GPC-3	LL44	GPC-3				3.00	3.01	3.01	93.73	55.36	4.17	13.39	-0.07
LL44-GPC-3	LL44	GPC-3				3.50	3.51	3.51	96.08	56.50	3.79	11.61	-0.16
LL44-GPC-3	LL44	GPC-3				4.00	4.01	4.01	99.87	60.68	5.55	15.13	-0.55
LL44-GPC-3	LL44	GPC-3				4.50	4.51	4.51	98.45	61.39	5.59	17.35	-0.14
LL44-GPC-3	LL44	GPC-3				5.00	5.01	5.01	87.36	57.13	7.47	30.40	0.00
LL44-GPC-3	LL44	GPC-3				5.50	5.51	5.51	89.14	55.27	5.15	16.51	-0.02
LL44-GPC-3	LL44	GPC-3				6.00	6.01	6.01	89.42	56.92	4.84	18.14	0.18
LL44-GPC-3	LL44	GPC-3				6.50	6.51	6.51	94.36	66.84	9.07	39.05	-0.31
LL44-GPC-3	LL44	GPC-3				7.00	7.01	7.01	92.85	64.62	8.87	34.73	0.09
LL44-GPC-3	LL44	GPC-3				7.50	7.51	7.51	82.39	57.97	10.62	37.12	0.13
LL44-GPC-3	LL44	GPC-3				8.00	8.01	8.01	85.27	61.11	10.25	42.43	-0.02
LL44-GPC-3	LL44	GPC-3				8.50	8.51	8.51	77.78	58.99	11.20	42.73	0.00
LL44-GPC-3	LL44	GPC-3				9.00	9.01	9.01	74.68	60.15	15.02	60.12	-0.08
LL44-GPC-3	LL44	GPC-3				9.50	9.51	9.51	81.13	63.45	15.18	71.24	0.08
LL44-GPC-3	LL44	GPC-3				10.00	10.01	10.01	77.42	64.50	19.37	98.72	-0.01
LL44-GPC-3	LL44	GPC-3				10.50	10.51	10.51	74.11	68.71	21.25	72.11	-0.01
LL44-GPC-3	LL44	GPC-3				11.00	11.01	11.01	75.42	61.02	18.76	70.94	-0.12
LL44-GPC-3	LL44	GPC-3				11.50	11.51	11.51	86.92	58.56	34.82	65.94	-0.06
LL44-GPC-3	LL44	GPC-3				12.00	12.01	12.01	90.07	59.20	22.74	64.10	-0.01
LL44-GPC-3	LL44	GPC-3				12.50	12.51	12.51	85.13	65.77	28.13	76.76	-0.10
LL44-GPC-3	LL44	GPC-3				13.00	13.01	13.01	75.79	78.98	32.65	90.87	-0.12
LL44-GPC-3	LL44	GPC-3				13.50	13.51	13.51	62.49	110.90	37.28	71.45	0.30
LL44-GPC-3	LL44	GPC-3				14.00	14.01	14.01	52.74	117.55	31.95	100.52	0.12
LL44-GPC-3	LL44	GPC-3				14.50	14.51	14.51	60.39	162.18	32.06	78.84	0.34
LL44-GPC-3	LL44	GPC-3				15.00	15.01	15.01	64.86	111.89	30.27	68.49	0.29
LL44-GPC-3	LL44	GPC-3				15.50	15.51	15.51	69.83	76.38	28.01	75.22	0.03
LL44-GPC-3	LL44	GPC-3				16.00	16.01	16.01	64.48	98.11	30.11	96.20	0.03
LL44-GPC-3	LL44	GPC-3				16.50	16.51	16.51	61.94	128.93	24.37	91.70	-0.17
LL44-GPC-3	LL44	GPC-3				17.00	17.01	17.01	60.94	120.86	27.35	107.58	0.18
LL44-GPC-3	LL44	GPC-3				17.50	17.51	17.51	68.30	82.49	27.68	88.58	0.02
LL44-GPC-3	LL44	GPC-3				18.00	18.01	18.01	69.01	74.39	25.29	85.71	0.20
LL44-GPC-3	LL44	GPC-3				18.50	18.51	18.51	65.98	79.04	23.81	93.06	0.03
LL44-GPC-3	LL44	GPC-3				19.00	19.01	19.01	60.86	81.15	17.01	72.26	0.08
LL44-GPC-3	LL44	GPC-3				19.50	19.51	19.51	56.72	101.11	18.01	87.85	0.15
LL44-GPC-3	LL44	GPC-3				20.00	20.01	20.01	66.12	75.05	11.75	45.60	0.09
LL44-GPC-3	LL44	GPC-3				20.50	20.51	20.51	80.03	74.65	10.54	44.86	0.13
LL44-GPC-3	LL44	GPC-3				21.00	21.01	21.01	71.47	55.96	14.14	41.69	-0.06
LL44-GPC-3	LL44	GPC-3				21.50	21.51	21.51	73.34	57.63	16.67	58.49	0.11
LL44-GPC-3	LL44	GPC-3				22.00	22.01	22.01	76.19	74.85	19.20	73.16	-0.05
LL44-GPC-3	LL44	GPC-3				22.50	22.51	22.51	82.34	59.91	12.90	49.98	-0.12
LL44-GPC-3	LL44	GPC-3				23.00	23.01	23.01	79.87	53.45	12.08	30.00	-0.12