Citation:

PANGAEA.932944

Name: Sr, Nd and Pb isotope characterisation of surface sediment samples from playa lakes in the Mojave Desert
Published: 2021-06-23
License: https://creativecommons.org/licenses/by/4.0/
Keywords: dust; lead; Neodymium; North America; paleoclimatology; Quaternary; Radiogenic isotopes; Strontium (Sr)

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Abstract:

Strontium, neodymium and lead isotopic signatures were measured on a suite of surface sediment samples from nine different playa lakes across the Mojave Desert. All sediment samples had carbonates and organic material removed before full chemical digestion prior to analysis. Ferromanganese coatings were also removed in a subset of samples, with no notable isotopic effect from an anthropogenic contribution of Pb detected.

Keyword(s):

dust; lead; Neodymium; North America; paleoclimatology; Quaternary; Radiogenic isotopes; Strontium (Sr)

Related to:

Jardine, Gabriella; Crocker, Anya J; Bailey, Ian; Cooper, Mathew; Milton, James; Wilson, Paul A (2021): The imprint of windblown dust from the North American Southwest on the California Channel Islands and Pacific Ocean sediments. Quaternary Science Reviews, 261, 106934, https://doi.org/10.1016/j.quascirev.2021.106934

Coverage:

Median Latitude: 35.866946 * Median Longitude: -116.719348 * South-bound Latitude: 34.652538 * West-bound Longitude: -118.070731 * North-bound Latitude: 37.082111 * East-bound Longitude: -116.021637

Event(s):

Mojave_AF (AF) * Latitude: 36.263700 * Longitude: -116.369200 * Location: Mojave, California, U.S.A. * Method/Device: Sediment sample (SES)

Mojave_DH (DH) * Latitude: 36.425167 * Longitude: -116.324541 * Location: Mojave, California, U.S.A. * Method/Device: Sediment sample (SES)

Mojave_EM (EM) * Latitude: 34.652538 * Longitude: -117.608500 * Location: Mojave, California, U.S.A. * Method/Device: Sediment sample (SES)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Comment
1	Event label	Event		Crocker, Anya J
2	Sample code/label	Sample label		Crocker, Anya J
3	LATITUDE	Latitude		Crocker, Anya J	Geocode – Approximate
4	LONGITUDE	Longitude		Crocker, Anya J	Geocode – Approximate
5	Strontium-87/Strontium-86 ratio	87Sr/86Sr		Crocker, Anya J
6	Strontium-87/Strontium-86 ratio, error	87Sr/86Sr e	±	Crocker, Anya J	Error (1 SE)
7	Neodymium-143/Neodymium-144 ratio	143Nd/144Nd		Crocker, Anya J
8	Neodymium-143/Neodymium-144 ratio, error	143Nd/144Nd e	±	Crocker, Anya J	Error (2 SE)
9	ε-Neodymium	ε-Nd		Crocker, Anya J
10	ε-Neodymium, error	ε-Nd e	±	Crocker, Anya J	2 sigma internal error
11	Lead-206/Lead-204 ratio	206Pb/204Pb		Crocker, Anya J
12	Lead-206/Lead-204 ratio	206Pb/204Pb		Crocker, Anya J	Error (1 SE)
13	Lead-207/Lead-204 ratio	207Pb/204Pb		Crocker, Anya J
14	Lead-207/Lead-204 ratio	207Pb/204Pb		Crocker, Anya J	Error (1 SE)
15	Lead-208/Lead-204 ratio	208Pb/204Pb		Crocker, Anya J
16	Lead-208/Lead-204 ratio	208Pb/204Pb		Crocker, Anya J	Error (1 SE)
17	Comment	Comment		Crocker, Anya J	Fe-Mn removal step?

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

334 data points

Data

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

1 Event	2 Sample label	3 Latitude (Approximate)	4 Longitude (Approximate)	5 87Sr/86Sr	6 87Sr/86Sr e [±] (Error (1 SE))	7 143Nd/144Nd	8 143Nd/144Nd e [±] (Error (2 SE))	9 ε-Nd	10 ε-Nd e [±] (2 sigma internal error)	11 206Pb/204Pb	12 206Pb/204Pb (Error (1 SE))	13 207Pb/204Pb	14 207Pb/204Pb (Error (1 SE))	15 208Pb/204Pb	16 208Pb/204Pb (Error (1 SE))	17 Comment (Fe-Mn removal step?)
Mojave_SF	SF-1	37.08211083	-116.9542250	0.711142	0.000006	0.512148	0.000005	-9.55	0.09	18.9496	0.0023	15.6590	0.0021	38.9675	0.0067	N
Mojave_SF	SF-4	37.08211083	-116.9542250	0.710635	0.000008	0.512191	0.000006	-8.72	0.13	19.2402	0.0018	15.6952	0.0017	39.3139	0.0053	N
Mojave_RO	RO-1	34.82350000	-118.0707306	0.709911	0.000008	0.512192	0.000005	-8.71	0.09	18.9134	0.0020	15.6614	0.0018	39.3392	0.0059	N
Mojave_RO	RO-2	34.82350000	-118.0707306	0.710146	0.000007	0.512149	0.000007	-9.53	0.13	18.9474	0.0020	15.6625	0.0018	39.0152	0.0058	N
Mojave_RO	RO-3	34.82350000	-118.0707306	0.710410	0.000010	0.512155	0.000006	-9.42	0.11	19.3617	0.0021	15.7043	0.0019	39.2516	0.0062	N
Mojave_RO	RO-3 v2	34.82350000	-118.0707306							19.1421	0.0077	15.6977	0.0071	39.3333	0.0225	Y
Mojave_YF	YF-1	36.95453000	-116.0216367	0.711896	0.000010	0.512138	0.000005	-9.75	0.10	19.0377	0.0022	15.6713	0.0020	39.1017	0.0065	N
Mojave_YF	YF-1 v2	36.95453000	-116.0216367							19.0146	0.0048	15.6707	0.0044	39.0450	0.0139	Y
Mojave_YF	YF-2	36.95453000	-116.0216367	0.713435	0.000009	0.512144	0.000004	-9.63	0.09	19.0869	0.0020	15.6767	0.0018	39.2500	0.0058	N
Mojave_YF	YF-3	36.95453000	-116.0216367	0.712985	0.000008	0.512119	0.000006	-10.13	0.11	18.9549	0.0018	15.6630	0.0017	39.0103	0.0053	N
Mojave_SO	SO-1	35.13458333	-116.0578333			0.512137	0.000006	-9.77	0.11	18.8674	0.0019	15.6530	0.0017	39.0966	0.0055	N
Mojave_SO	SO-2	35.13458333	-116.0578333			0.512172	0.000006	-9.09	0.12	18.8514	0.0018	15.6543	0.0017	39.1755	0.0054	N
Mojave_SO	SO-3	35.13458333	-116.0578333	0.710018	0.000006	0.512134	0.000005	-9.83	0.11	18.8681	0.0019	15.6533	0.0018	39.1784	0.0056	N
Mojave_RL	RL-2	34.88658333	-117.8251867	0.709560	0.000010	0.512254	0.000006	-7.50	0.11	19.3266	0.0019	15.7057	0.0017	39.1622	0.0055	N
Mojave_RL	RL-4/3	34.88658333	-117.8251867	0.709447	0.000007	0.512245	0.000006	-7.66	0.11	18.8451	0.0022	15.6539	0.0021	39.3832	0.0066	N
Mojave_AF	AF-1	36.26370000	-116.3692000	0.711757	0.000009	0.512108	0.000005	-10.35	0.10	18.9496	0.0023	15.6590	0.0021	38.9675	0.0067	N
Mojave_AF	AF-2	36.26370000	-116.3692000			0.512155	0.000004	-9.41	0.09	18.7217	0.0019	15.6402	0.0017	39.1093	0.0055	N
Mojave_AF	AF-4	36.26370000	-116.3692000	0.711259	0.000009	0.512160	0.000006	-9.32	0.11	18.7616	0.0017	15.6440	0.0016	39.0716	0.0052	N
Mojave_AF	AF-4 v2	36.26370000	-116.3692000							18.6866	0.0021	15.6351	0.0020	39.0676	0.0062	Y
Mojave_SI	SI-1	35.33966667	-116.1088958	0.711274	0.000007	0.512127	0.000005	-9.97	0.09	18.9990	0.0022	15.6622	0.0020	39.0969	0.0065	N
Mojave_SI	SI-2	35.33966667	-116.1088958	0.711517	0.000008	0.512116	0.000005	-10.19	0.10	19.1207	0.0018	15.6816	0.0017	39.2420	0.0054	N
Mojave_EM	EM-5	34.65253833	-117.6085000	0.711029	0.000008	0.512105	0.000006	-10.40	0.11	18.8630	0.0018	15.6627	0.0017	39.1921	0.0054	N
Mojave_DH	DH-1	36.42516667	-116.3245411	0.713770	0.000009	0.512047	0.000006	-11.54	0.12	18.9935	0.0018	15.6611	0.0017	39.0608	0.0054	N
Mojave_DH	DH-2	36.42516667	-116.3245411	0.712782	0.000009	0.512046	0.000006	-11.55	0.12	19.0184	0.0022	15.6717	0.0020	39.1191	0.0065	N
Mojave_DH	DH-3	36.42516667	-116.3245411	0.716889	0.000008	0.512021	0.000005	-12.03	0.11	19.1091	0.0021	15.6801	0.0020	39.0969	0.0062	N
Mojave_DH	DH-3 v2	36.42516667	-116.3245411							19.1979	0.0042	15.6891	0.0038	39.1609	0.0122	Y