Citation:

PANGAEA.932768

Name: Authigenic neodymium isotope of IODP Site 306-U1313
Published: 2021-06-17
License: https://creativecommons.org/licenses/by/4.0/
Keywords: AMOC; Glacial cycles; Neodymium isotopes

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Abstract:

This dataset includes authigenic Fe-Mn oxyhydroxide derived neodymium (Nd) isotope data of the North Atlantic IODP site U1313 (Leg 306) from the last glacial (25 - 93 ka). The authigenic sediment phase was extracted by weekly reductive leaching. The isotope ratios are normalized to 146Nd/144Nd = 0.7219 and were analyzed on a Neptune Plus MC-ICP-MS at GEOMAR, Kiel, Germany. Aim of this study is the reconstruction of the Nd isotopic end member of northern-sourced water over the investigated timespan in order to facilitate reconstructions of the geometry of the Atlantic meridional overturning circulation.

Keyword(s):

AMOC; Glacial cycles; Neodymium isotopes

Supplement to:

Pöppelmeier, Frerk; Gutjahr, Marcus; Blaser, Patrick; Schulz, Hartmut; Süfke, Finn; Lippold, Jörg (accepted): Stable Atlantic deep water mass sourcing on glacial-interglacial timescales. Geophysical Research Letters

Coverage:

Median Latitude: 41.000023 * Median Longitude: -32.957155 * South-bound Latitude: 41.000022 * West-bound Longitude: -32.957300 * North-bound Latitude: 41.000023 * East-bound Longitude: -32.957010

Minimum Elevation: -3413.5 m * Maximum Elevation: -3412.7 m

Event(s):

306-U1313B * Latitude: 41.000023 * Longitude: -32.957300 * Elevation: -3413.5 m * Recovery: 306.54 m * Campaign: (North Atlantic Climate 2) * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 32 cores; 300.4 m cored; 102 % recovered; 2 m drilled; 302.4 m penetrated

306-U1313C * Latitude: 41.000022 * Longitude: -32.957010 * Elevation: -3412.7 m * Recovery: 305.79 m * Campaign: (North Atlantic Climate 2) * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 32 cores; 293.4 m cored; 104.2 % recovered; 0 m drilled; 293.4 m penetrated

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Pöppelmeier, Frerk
2	Sample code/label	Sample label		Pöppelmeier, Frerk	DSDP/ODP/IODP sample designation
3	Section	Sect		Pöppelmeier, Frerk
4	Depth, top/min	Depth top	m	Pöppelmeier, Frerk
5	Depth, bottom/max	Depth bot	m	Pöppelmeier, Frerk
6	Depth, composite	Depth comp	mcd	Pöppelmeier, Frerk
7	AGE	Age	ka BP	Pöppelmeier, Frerk		Geocode
8	ε-Neodymium	ε-Nd		Pöppelmeier, Frerk	Multi-collector ICP-MS (MC-ICP-MS), Neptune Plus, Thermo
9	ε-Neodymium, standard deviation	ε-Nd std dev	±	Pöppelmeier, Frerk	Multi-collector ICP-MS (MC-ICP-MS), Neptune Plus, Thermo	2SD

License:

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

Size:

441 data points

Data

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

1 Event	2 Sample label	3 Sect	4 Depth top [m]	5 Depth bot [m]	6 Depth comp [mcd]	7 Age [ka BP]	8 ε-Nd	9 ε-Nd std dev [±]
306-U1313C	306-U1313C-1H-1,141-142	C1H1W	1.41	1.42	1.42	25.2	-12.32	0.36
306-U1313C	306-U1313C-1H-1,145-146	C1H1W	1.45	1.46	1.46	25.7	-11.07	0.18
306-U1313C	306-U1313C-1H-2,16-17	C1H2W	0.16	0.17	1.67	30.4	-11.92	0.23
306-U1313C	306-U1313C-1H-2,21-22	C1H2W	0.21	0.22	1.72	32.0	-12.32	0.23
306-U1313C	306-U1313C-1H-2,26-27	C1H2W	0.26	0.27	1.77	34.0	-12.31	0.16
306-U1313C	306-U1313C-1H-2,32-33	C1H2W	0.32	0.33	1.83	35.1	-12.33	0.45
306-U1313C	306-U1313C-1H-2,37-38	C1H2W	0.37	0.38	1.88	35.6	-11.94	0.35
306-U1313B	306-U1313B-1H-2,29-30	B1H2W	0.29	0.30	1.96	36.7	-11.96	0.32
306-U1313B	306-U1313B-1H-2,40-41	B1H2W	0.40	0.41	2.07	37.6	-12.71	0.32
306-U1313B	306-U1313B-1H-2,51-52	B1H2W	0.51	0.52	2.18	38.4	-13.56	0.32
306-U1313B	306-U1313B-1H-2,60-61	B1H2W	0.60	0.61	2.27	39.4	-13.54	0.25
306-U1313B	306-U1313B-1H-2,65-66	B1H2W	0.65	0.66	2.32	40.5	-12.82	0.32
306-U1313B	306-U1313B-1H-2,70-71	B1H2W	0.70	0.71	2.37	41.5	-12.37	0.25
306-U1313B	306-U1313B-1H-2,77-78	B1H2W	0.77	0.78	2.44	43.0	-11.71	0.32
306-U1313B	306-U1313B-1H-2,79-80	B1H2W	0.79	0.80	2.46	43.4	-12.44	0.32
306-U1313B	306-U1313B-1H-2,85-86	B1H2W	0.85	0.86	2.52	44.6	-12.69	0.32
306-U1313B	306-U1313B-1H-2,90-91	B1H2W	0.90	0.91	2.57	45.7	-13.78	0.32
306-U1313B	306-U1313B-1H-2,95-96	B1H2W	0.95	0.96	2.62	46.7	-14.85	0.25
306-U1313B	306-U1313B-1H-2,99-100	B1H2W	0.99	1.00	2.66	47.5	-14.07	0.32
306-U1313B	306-U1313B-1H-2,107-108	B1H2W	1.07	1.08	2.74	49.1	-13.37	0.32
306-U1313B	306-U1313B-1H-2,110-111	B1H2W	1.10	1.11	2.77	49.6	-13.91	0.25
306-U1313B	306-U1313B-1H-2,115-116	B1H2W	1.15	1.16	2.82	50.3	-12.58	0.25
306-U1313B	306-U1313B-1H-2,124-125	B1H2W	1.24	1.25	2.91	51.7	-12.01	0.32
306-U1313B	306-U1313B-1H-2,129-130	B1H2W	1.29	1.30	2.96	52.4	-12.16	0.32
306-U1313B	306-U1313B-1H-2,135-136	B1H2W	1.35	1.36	3.02	53.3	-12.50	0.32
306-U1313B	306-U1313B-1H-2,140-141	B1H2W	1.40	1.41	3.07	54.1	-12.99	0.32
306-U1313B	306-U1313B-1H-2,145-146	B1H2W	1.45	1.46	3.12	54.8	-12.96	0.32
306-U1313B	306-U1313B-1H-3,3-4	B1H3W	0.03	0.04	3.20	56.0	-12.92	0.32
306-U1313B	306-U1313B-1H-3,10-11	B1H3W	0.10	0.11	3.27	57.0	-11.96	0.32
306-U1313B	306-U1313B-1H-3,15-16	B1H3W	0.15	0.16	3.32	57.8	-12.19	0.32
306-U1313B	306-U1313B-1H-3,19-20	B1H3W	0.19	0.20	3.36	58.4	-12.03	0.32
306-U1313B	306-U1313B-1H-3,23-24	B1H3W	0.23	0.24	3.40	59.0	-11.97	0.32
306-U1313B	306-U1313B-1H-3,27-28	B1H3W	0.27	0.28	3.44	59.6	-11.66	0.32
306-U1313B	306-U1313B-1H-3,35-36	B1H3W	0.35	0.36	3.52	61.1	-11.77	0.32
306-U1313B	306-U1313B-1H-3,41-42	B1H3W	0.41	0.42	3.58	62.3	-12.69	0.25
306-U1313B	306-U1313B-1H-3,45-46	B1H3W	0.45	0.46	3.62	63.2	-13.03	0.25
306-U1313B	306-U1313B-1H-3,49-50	B1H3W	0.49	0.50	3.66	64.0	-12.04	0.32
306-U1313B	306-U1313B-1H-3,55-56	B1H3W	0.55	0.56	3.72	65.3	-12.05	0.32
306-U1313B	306-U1313B-1H-3,60-61	B1H3W	0.60	0.61	3.77	66.3	-12.75	0.25
306-U1313B	306-U1313B-1H-3,65-66	B1H3W	0.65	0.66	3.82	67.4	-12.28	0.32
306-U1313B	306-U1313B-1H-3,70-71	B1H3W	0.70	0.71	3.87	68.4	-12.37	0.32
306-U1313B	306-U1313B-1H-3,74-75	B1H3W	0.74	0.75	3.91	69.3	-12.56	0.32
306-U1313B	306-U1313B-1H-3,79-80	B1H3W	0.79	0.80	3.96	70.3	-13.18	0.25
306-U1313B	306-U1313B-1H-3,85-86	B1H3W	0.85	0.86	4.02	71.6	-12.89	0.32
306-U1313B	306-U1313B-1H-3,90-91	B1H3W	0.90	0.91	4.07	72.6	-12.73	0.32
306-U1313B	306-U1313B-1H-3,95-96	B1H3W	0.95	0.96	4.12	73.7	-12.93	0.32
306-U1313B	306-U1313B-1H-3,99-100	B1H3W	0.99	1.00	4.16	74.5	-13.18	0.32
306-U1313B	306-U1313B-1H-3,107-108	B1H3W	1.07	1.08	4.24	76.2	-13.42	0.32
306-U1313B	306-U1313B-1H-3,110-111	B1H3W	1.10	1.11	4.27	76.8	-13.20	0.32
306-U1313B	306-U1313B-1H-3,115-116	B1H3W	1.15	1.16	4.32	77.9	-13.38	0.32
306-U1313B	306-U1313B-1H-3,120-121	B1H3W	1.20	1.21	4.37	78.9	-13.75	0.32
306-U1313B	306-U1313B-1H-3,127-128	B1H3W	1.27	1.28	4.44	80.4	-13.68	0.32
306-U1313B	306-U1313B-1H-3,131-132	B1H3W	1.31	1.32	4.48	81.3	-13.56	0.32
306-U1313B	306-U1313B-1H-3,135-136	B1H3W	1.35	1.36	4.52	82.1	-13.22	0.32
306-U1313B	306-U1313B-1H-3,140-141	B1H3W	1.40	1.41	4.57	83.1	-12.99	0.32
306-U1313B	306-U1313B-1H-3,145-146	B1H3W	1.45	1.46	4.62	84.2	-13.08	0.32
306-U1313B	306-U1313B-1H-4,3-4	B1H4W	0.03	0.04	4.70	85.9	-13.36	0.32
306-U1313B	306-U1313B-1H-4,10-11	B1H4W	0.10	0.11	4.77	87.4	-13.14	0.32
306-U1313B	306-U1313B-1H-4,15-16	B1H4W	0.15	0.16	4.82	88.4	-12.53	0.32
306-U1313B	306-U1313B-1H-4,20-21	B1H4W	0.20	0.21	4.87	89.5	-12.46	0.32
306-U1313B	306-U1313B-1H-4,25-26	B1H4W	0.25	0.26	4.92	90.5	-12.55	0.32
306-U1313B	306-U1313B-1H-4,30-31	B1H4W	0.30	0.31	4.97	91.6	-12.64	0.32
306-U1313B	306-U1313B-1H-4,35-36	B1H4W	0.35	0.36	5.02	92.6	-12.58	0.32