Citation:

PANGAEA.932921

Name: Late Miocene radiogenic Sr, Nd, and Pb isotope data of the detrital clay fraction from IODP Site 353-U1443
Published: 2021-06-22
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Bay of Bengal; detrital clays; Late Miocene; Radiogenic isotopes; Weathering

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Abstract:

Data from Enhanced late Miocene chemical weathering and altered precipitation patterns in the watersheds of the Bay of Bengal recorded by detrital clay radiogenic isotopes in Paleoceanography and Paleoclimatology. Marine sediment samples from the late Miocene (approximately 9 to 5 million years ago) were taken from International Ocean Discovery Program (IODP) Site U1443 located on the top of the Ninety East ridge in the southern Bay of Bengal. Samples were taken along the composite sediment section or splice and the age model based on shipboard calcareous nannofossil biostratigraphy and magnetostratigraphy was refined using the stable carbon isotopes of benthic foraminifera. The detrital silicates of the clay size fraction were isolated and measured for their radiogenic Sr, Nd, and Pb isotope composition by multi-collector inductively coupled plasma mass spectrometry (MC-ICP-MS) to investigate the provenance of clays produced by weathering in the surrounding watersheds.

Keyword(s):

Bay of Bengal; detrital clays; Late Miocene; Radiogenic isotopes; Weathering

Supplement to:

Bretschneider, Lisa; Hathorne, Ed C; Bolton, Clara T; Gebregiorgis, Daniel; Giosan, Liviu; Gray, Emmeline; Huang, Huang; Holbourn, Ann E; Kuhnt, Wolfgang; Frank, Martin (2021): Enhanced Late Miocene Chemical Weathering and Altered Precipitation Patterns in the Watersheds of the Bay of Bengal Recorded by Detrital Clay Radiogenic Isotopes. Paleoceanography and Paleoclimatology, 36(9), https://doi.org/10.1029/2021PA004252

Funding:

Agence Nationale de la Recherche (ANR), grant/award no. ANR-16-CE01-0004-01

German Research Foundation (DFG), grant/award no. DFG HA 5751/6-1 & -2

Coverage:

Median Latitude: 5.383533 * Median Longitude: 90.361763 * South-bound Latitude: 5.383460 * West-bound Longitude: 90.361640 * North-bound Latitude: 5.383650 * East-bound Longitude: 90.361830

Minimum Elevation: -2935.5 m * Maximum Elevation: -2929.4 m

Event(s):

353-U1443A * Latitude: 5.383490 * Longitude: 90.361830 * Elevation: -2929.4 m * Campaign: * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL)

353-U1443B * Latitude: 5.383650 * Longitude: 90.361820 * Elevation: -2935.5 m * Campaign: * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL)

353-U1443C * Latitude: 5.383460 * Longitude: 90.361640 * Elevation: -2935.4 m * Campaign: * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Hathorne, Ed C
2	Sample code/label	Sample label		Hathorne, Ed C	DSDP/ODP/IODP sample designation
3	Cruise/expedition	Expedition		Hathorne, Ed C
4	Site	Site		Hathorne, Ed C
5	Hole	H		Hathorne, Ed C
6	Core	Core		Hathorne, Ed C
7	Type	Type		Hathorne, Ed C
8	Section	Sect		Hathorne, Ed C
9	Sample comment	Sample comment		Hathorne, Ed C
10	Interval number	Interval No		Hathorne, Ed C		TOP interval (cm)
11	Interval number	Interval No		Hathorne, Ed C		BTM interval (cm)
12	Depth, composite	Depth comp	mcd	Hathorne, Ed C		below sea floor (m) CCSF
13	AGE	Age	ka BP	Hathorne, Ed C		Geocode
14	Neodymium-143/Neodymium-144 ratio	143Nd/144Nd		Hathorne, Ed C	MC-ICP-MS
15	ε-Neodymium	ε-Nd		Hathorne, Ed C
16	ε-Neodymium, standard deviation	ε-Nd std dev	±	Hathorne, Ed C	Calculated, 2 sigma
17	Strontium-87/Strontium-86 ratio	87Sr/86Sr		Hathorne, Ed C	MC-ICP-MS
18	Strontium-87/Strontium-86 ratio, standard deviation	87Sr/86Sr std dev	±	Hathorne, Ed C	Calculated, 2 sigma
19	Lead-206/Lead-204 ratio	206Pb/204Pb		Hathorne, Ed C	MC-ICP-MS
20	Lead-206/Lead-204 ratio, standard deviation	206Pb/204Pb std dev	±	Hathorne, Ed C	Calculated, 2 sigma
21	Lead-207/Lead-204 ratio	207Pb/204Pb		Hathorne, Ed C	MC-ICP-MS
22	Lead-207/Lead-204 ratio, standard deviation	207Pb/204Pb std dev	±	Hathorne, Ed C	Calculated, 2 sigma
23	Lead-208/Lead-204 ratio	208Pb/204Pb		Hathorne, Ed C	MC-ICP-MS
24	Lead-208/Lead-204 ratio, standard deviation	208Pb/204Pb std dev	±	Hathorne, Ed C	Calculated, 2 sigma

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

968 data points

Data

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

1 Event	2 Sample label (DSDP/ODP/IODP sample designation)	3 Expedition	4 Site	5 H	6 Core	7 Type	8 Sect	9 Sample comment	10 Interval No (TOP interval (cm))	11 Interval No (BTM interval (cm))	12 Depth comp [mcd] (below sea floor (m) CCSF)	13 Age [ka BP]	14 143Nd/144Nd (MC-ICP-MS)	15 ε-Nd	16 ε-Nd std dev [±] (Calculated, 2 sigma)	17 87Sr/86Sr (MC-ICP-MS)	18 87Sr/86Sr std dev [±] (Calculated, 2 sigma)	19 206Pb/204Pb (MC-ICP-MS)	20 206Pb/204Pb std dev [±] (Calculated, 2 sigma)	21 207Pb/204Pb (MC-ICP-MS)	22 207Pb/204Pb std dev [±] (Calculated, 2 sigma)	23 208Pb/204Pb (MC-ICP-MS)	24 208Pb/204Pb std dev [±] (Calculated, 2 sigma)
353-U1443C	353-U1443C-9H-2,118-119	353	U1443	C	9	H	2	Working half	118	119	71.12	5016	0.512081	-10.87	0.24	0.71595	0.000017	19.035	0.0012	15.757	0.0021	39.451	0.0010
353-U1443C	353-U1443C-9H-4,16-17	353	U1443	C	9	H	4	Working half	16	17	73.10	5126	0.512151	-9.49	0.24	0.71436	0.000017	18.972	0.0012	15.740	0.0021	39.344	0.0010
353-U1443C	353-U1443C-9H-5,127-128	353	U1443	C	9	H	5	Working half	127	128	75.71	5332	0.512081	-10.87	0.24	0.71534	0.000017	19.015	0.0023	15.758	0.0056	39.440	0.0019
353-U1443B	353-U1443B-8H-3,142-143	353	U1443	B	8	H	3	Working half	142	143	78.18	5528	0.512114	-10.23	0.24	0.71417	0.000017	19.014	0.0023	15.753	0.0056	39.424	0.0019
353-U1443B	353-U1443B-8H-4,123-124	353	U1443	B	8	H	4	Working half	123	124	79.49	5633	0.512124	-10.03	0.24	0.71464	0.000017	18.973	0.0012	15.747	0.0021	39.363	0.0010
353-U1443B	353-U1443B-8H-5,32-33	353	U1443	B	8	H	5	Working half	32	33	80.08	5682	0.512135	-9.81	0.24	0.71411	0.000017	19.003	0.0012	15.754	0.0021	39.409	0.0010
353-U1443B	353-U1443B-8H-5,99-100	353	U1443	B	8	H	5	Working half	99	100	80.75	5738	0.512106	-10.38	0.24	0.71440	0.000017	19.000	0.0012	15.750	0.0021	39.409	0.0010
353-U1443C	353-U1443C-10H-3,33-34	353	U1443	C	10	H	3	Working half	33	34	81.49	5797	0.512102	-10.46	0.24	0.71458	0.000017	18.980	0.0023	15.746	0.0056	39.375	0.0019
353-U1443C	353-U1443C-10H-4,9-10	353	U1443	C	10	H	4	Working half	9	10	82.22	5850	0.512155	-9.42	0.24	0.71411	0.000017	18.959	0.0012	15.741	0.0021	39.342	0.0010
353-U1443C	353-U1443C-10H-4,81-82	353	U1443	C	10	H	4	Working half	81	82	82.94	5903	0.512121	-10.09	0.24	0.71352	0.000017	19.012	0.0012	15.757	0.0021	39.423	0.0010
353-U1443C	353-U1443C-10H-5,7-8	353	U1443	C	10	H	5	Working half	7	8	83.70	5958	0.512118	-10.14	0.24	0.71328	0.000017	19.028	0.0012	15.764	0.0021	39.464	0.0010
353-U1443C	353-U1443C-10H-5,79-80	353	U1443	C	10	H	5	Working half	79	80	84.42	6011	0.512116	-10.18	0.24	0.71367	0.000017	19.013	0.0012	15.758	0.0021	39.429	0.0010
353-U1443C	353-U1443C-10H-6,71-72	353	U1443	C	10	H	6	Working half	71	72	85.84	6118	0.512093	-10.62	0.24	0.71323	0.000017	19.026	0.0023	15.761	0.0056	39.445	0.0019
353-U1443C	353-U1443C-10H-6,143-144	353	U1443	C	10	H	6	Working half	143	144	86.56	6162	0.512086	-10.76	0.24	0.71364	0.000017	18.957	0.0023	15.753	0.0056	39.340	0.0019
353-U1443C	353-U1443C-10H-7,61-62	353	U1443	C	10	H	7	Working half	61	62	87.25	6203	0.512092	-10.66	0.24	0.71357	0.000017	19.044	0.0012	15.763	0.0021	39.463	0.0010
353-U1443B	353-U1443B-9H-3,68-69	353	U1443	B	9	H	3	Working half	68	69	87.85	6239	0.512147	-9.58	0.24	0.71318	0.000017	18.960	0.0023	15.744	0.0056	39.359	0.0019
353-U1443B	353-U1443B-9H-3,148-149	353	U1443	B	9	H	3	Working half	148	149	88.65	6288	0.512170	-9.13	0.24	0.71325	0.000017	18.945	0.0012	15.741	0.0021	39.334	0.0010
353-U1443B	353-U1443B-9H-4,73-74	353	U1443	B	9	H	4	Working half	73	74	89.40	6342	0.512138	-9.76	0.24	0.71313	0.000017	18.973	0.0023	15.749	0.0056	39.376	0.0019
353-U1443C	353-U1443C-11H-1,53-54	353	U1443	C	11	H	1	Working half	53	54	90.11	6399	0.512133	-9.85	0.24	0.71393	0.000017	18.995	0.0012	15.751	0.0021	39.393	0.0010
353-U1443C	353-U1443C-11H-1,142-143	353	U1443	C	11	H	1	Working half	142	143	91.00	6470	0.512096	-10.56	0.24	0.71356	0.000017	18.986	0.0023	15.753	0.0056	39.404	0.0019
353-U1443C	353-U1443C-11H-3,9-10	353	U1443	C	11	H	3	Working half	9	10	92.67	6635	0.512137	-9.76	0.24	0.71367	0.000017	18.995	0.0023	15.750	0.0056	39.390	0.0019
353-U1443A	353-U1443A-10H-2,69-70	353	U1443	A	10	H	2	Working half	69	70	94.39	6770	0.512140	-9.71	0.24	0.71370	0.000017	18.975	0.0012	15.742	0.0021	39.346	0.0010
353-U1443A	353-U1443A-10H-3,98-99	353	U1443	A	10	H	3	Working half	98	99	96.18	6913	0.512108	-10.35	0.24	0.71379	0.000017	18.996	0.0012	15.754	0.0021	39.400	0.0010
353-U1443A	353-U1443A-10H-4,117-118	353	U1443	A	10	H	4	Working half	117	118	97.87	7043	0.512157	-9.38	0.24	0.71261	0.000017	18.974	0.0012	15.746	0.0021	39.357	0.0010
353-U1443A	353-U1443A-10H-5,142-143	353	U1443	A	10	H	5	Working half	142	143	99.62	7166	0.512115	-10.21	0.24	0.71361	0.000017	18.973	0.0012	15.747	0.0021	39.357	0.0010
353-U1443C	353-U1443C-12H-3,17-18	353	U1443	C	12	H	3	Working half	17	18	101.31	7300	0.512101	-10.48	0.24	0.71371	0.000017	18.992	0.0023	15.754	0.0056	39.415	0.0019
353-U1443B	353-U1443B-11H-2,39-40	353	U1443	B	11	H	2	Working half	39	40	103.13	7481	0.512054	-11.39	0.24	0.71374	0.000017	19.037	0.0023	15.767	0.0056	39.493	0.0019
353-U1443B	353-U1443B-11H-3,106-107	353	U1443	B	11	H	3	Working half	106	107	104.85	7591	0.512119	-10.12	0.24	0.71380	0.000017	18.987	0.0023	15.751	0.0056	39.404	0.0019
353-U1443B	353-U1443B-11H-4,127-128	353	U1443	B	11	H	4	Working half	127	128	106.56	7674	0.512114	-10.23	0.24	0.71351	0.000017	18.984	0.0023	15.752	0.0056	39.413	0.0019
353-U1443B	353-U1443B-11H-5,148-149	353	U1443	B	11	H	5	Working half	148	149	108.27	7807	0.512063	-11.21	0.24	0.71378	0.000017	19.017	0.0023	15.765	0.0056	39.471	0.0019
353-U1443A	353-U1443A-11H-6,13-14	353	U1443	A	11	H	6	Working half	13	14	109.88	7909	0.512066	-11.16	0.24	0.71348	0.000017	19.067	0.0012	15.770	0.0021	39.489	0.0010
353-U1443C	353-U1443C-13H-4,95-96	353	U1443	C	13	H	4	Working half	95	96	111.54	8000	0.512142	-9.68	0.24	0.71273	0.000017	18.957	0.0012	15.743	0.0021	39.343	0.0010
353-U1443B	353-U1443B-12H-1,132-133	353	U1443	B	12	H	1	Working half	132	133	113.19	8124	0.512084	-10.81	0.24	0.71465	0.000017	19.009	0.0023	15.754	0.0056	39.412	0.0019
353-U1443B	353-U1443B-12H-2,91-92	353	U1443	B	12	H	2	Working half	91	92	114.28	8196	0.512079	-10.91	0.24	0.71271	0.000017	19.051	0.0012	15.767	0.0021	39.468	0.0010
353-U1443B	353-U1443B-12H-2,137-138	353	U1443	B	12	H	2	Working half	137	138	114.74	8226	0.512078	-10.93	0.24	0.71439	0.000017	19.033	0.0023	15.766	0.0056	39.448	0.0019
353-U1443B	353-U1443B-12H-3,30-31	353	U1443	B	12	H	3	Working half	30	31	115.17	8254	0.512067	-11.14	0.24	0.71381	0.000017	19.055	0.0012	15.772	0.0021	39.470	0.0010
353-U1443B	353-U1443B-12H-3,62-63	353	U1443	B	12	H	3	Working half	62	63	115.49	8275	0.512066	-11.16	0.24	0.71385	0.000017	19.066	0.0023	15.770	0.0056	39.474	0.0019
353-U1443B	353-U1443B-12H-3,106-107	353	U1443	B	12	H	3	Working half	106	107	115.93	8304	0.512051	-11.44	0.24	0.71367	0.000017	19.084	0.0023	15.781	0.0056	39.517	0.0019
353-U1443B	353-U1443B-12H-3,144-145	353	U1443	B	12	H	3	Working half	144	145	116.31	8330	0.512093	-10.64	0.24	0.71316	0.000017	19.026	0.0023	15.766	0.0056	39.447	0.0019
353-U1443B	353-U1443B-12H-4,34-35	353	U1443	B	12	H	4	Working half	34	35	116.71	8356	0.512164	-9.25	0.24	0.71319	0.000017	18.966	0.0012	15.744	0.0021	39.328	0.0010
353-U1443B	353-U1443B-12H-5,16-17	353	U1443	B	12	H	5	Working half	16	17	118.03	8449	0.512079	-10.91	0.24	0.71380	0.000017	19.000	0.0023	15.756	0.0056	39.409	0.0019
353-U1443B	353-U1443B-12H-5,144-145	353	U1443	B	12	H	5	Working half	144	145	119.31	8545	0.512106	-10.37	0.24	0.71309	0.000017	18.973	0.0023	15.755	0.0056	39.395	0.0019
353-U1443C	353-U1443C-15H-3,78-79	353	U1443	C	15	H	3	Working half	78	79	120.56	8647	0.512084	-10.81	0.24	0.71304	0.000017	19.040	0.0012	15.767	0.0021	39.452	0.0010
353-U1443C	353-U1443C-15H-4,58-59	353	U1443	C	15	H	4	Working half	58	59	121.86	8857	0.512087	-10.75	0.24	0.71332	0.000017	18.973	0.0023	15.761	0.0056	39.426	0.0019