Citation:

PANGAEA.949906

Name: Sr, Nd, and Pb isotope compositions in different grain size fractions of North African soils
Published: 2022-10-25
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Atlantic dust transport; isotope fingerprinting; mineral dust provenance; North African soils; rare-earth element pattern; Sr-Nd-Pb radiogenic isotopes

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Keyword(s):

Atlantic dust transport; isotope fingerprinting; mineral dust provenance; North African soils; rare-earth element pattern; Sr-Nd-Pb radiogenic isotopes

Funding:

Deutsche Forschungsgemeinschaft, Bonn (DFG), grant/award no. 264907654

Deutsche Forschungsgemeinschaft, Bonn (DFG), grant/award no. 416816480

Deutsche Forschungsgemeinschaft, Bonn (DFG), grant/award no. SPP1833: Building a Habitable Earth

Science and Engineering Research Board (SERB), grant/award no. CRG/2019/001141

Coverage:

Median Latitude: 23.715000 * Median Longitude: -4.542500 * South-bound Latitude: 16.330000 * West-bound Longitude: -6.500000 * North-bound Latitude: 32.310000 * East-bound Longitude: -3.570000

Event(s):

Mali_C-62 * Latitude: 16.330000 * Longitude: -3.570000 * Location: Sahara-Sahel region * Method/Device: Soil sample (SOILS)

Mali_C-63 * Latitude: 16.330000 * Longitude: -3.570000 * Location: Sahara-Sahel region * Method/Device: Soil sample (SOILS)

Mali_FC-62 * Latitude: 16.330000 * Longitude: -3.570000 * Location: Sahara-Sahel region * Method/Device: Soil sample (SOILS)

Comment:

Further details and definitions:

* εNd : epsilon Nd following the equation : εNd = ((143Nd/144Nd)sample/(143Nd/144Nd)CHUR - 1) * 10,000. The unit should be "per ten thousand" but it is always expressed without. CHUR : Chondritic Uniform Reservoir with (143Nd/144Nd) = 0.512638

* 2SE : Two standard error

* FC : fine clay (<1 µm)

* Cl : clay (<2 µm)

* St : silt (between 2 and 20 µm)

* SC : silt-clay (<20 µm)

* Method: Hydrobromic acid (HBr 0.5 mol/L) selective extraction to remove anthropogenic Pb, followed by HF-HNO3 acid digestion of leachates and residues and isotope ratio measurements using thermal ionization mass spectrometry (TIMS Triton, ThermoFisher)

* SC values are coming from Table S1 (doi:10.1594/PANGAEA.949883). Bulk data coming from Abouchami et al. (2013).

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Guinoiseau, Damien
2	Identification	ID		Guinoiseau, Damien		Soil fractions
3	Location	Location		Guinoiseau, Damien
4	Year of observation	Year obs	a AD	Guinoiseau, Damien
5	Latitude of event	Latitude		Guinoiseau, Damien
6	Longitude of event	Longitude		Guinoiseau, Damien
7	Strontium-87/Strontium-86 ratio	87Sr/86Sr		Guinoiseau, Damien	Thermal Ionization Mass Spectrometry (TIMS)
8	Strontium-87/Strontium-86 ratio, standard error	87Sr/86Sr std e	±	Guinoiseau, Damien	Thermal Ionization Mass Spectrometry (TIMS)	2SE
9	ε-Neodymium	ε-Nd		Guinoiseau, Damien	Thermal Ionization Mass Spectrometry (TIMS)
10	ε-Neodymium, standard error	ε-Nd std e	±	Guinoiseau, Damien	Thermal Ionization Mass Spectrometry (TIMS)	2SE
11	Lead-206/Lead-204 ratio	206Pb/204Pb		Guinoiseau, Damien	Thermal Ionization Mass Spectrometry (TIMS)
12	Lead-206/Lead-204 ratio, standard error	206Pb/204Pb std e	±	Guinoiseau, Damien	Thermal Ionization Mass Spectrometry (TIMS)	2SE
13	Lead-207/Lead-204 ratio	207Pb/204Pb		Guinoiseau, Damien	Thermal Ionization Mass Spectrometry (TIMS)
14	Lead-207/Lead-204 ratio, standard error	207Pb/204Pb std e	±	Guinoiseau, Damien	Thermal Ionization Mass Spectrometry (TIMS)	2SE
15	Lead-208/Lead-204 ratio	208Pb/204Pb		Guinoiseau, Damien	Thermal Ionization Mass Spectrometry (TIMS)
16	Lead-208/Lead-204 ratio, standard error	208Pb/204Pb std e	±	Guinoiseau, Damien	Thermal Ionization Mass Spectrometry (TIMS)	2SE

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

206 data points

Data

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

1 Event	2 ID	3 Location	4 Year obs [a AD]	5 Latitude	6 Longitude	7 87Sr/86Sr	8 87Sr/86Sr std e [±]	9 ε-Nd	10 ε-Nd std e [±]	11 206Pb/204Pb	12 206Pb/204Pb std e [±]	13 207Pb/204Pb	14 207Pb/204Pb std e [±]	15 208Pb/204Pb	16 208Pb/204Pb std e [±]
Mali_SC-62	SC-62	Mali	1979	16.3300	-3.5700	0.725145	0.000006	-16.8	0.1	19.103	0.003	15.759	0.004	39.403	0.014
Mali_St-62	St-62	Mali	1979	16.3300	-3.5700	0.734950	0.000010			18.424	0.002	15.657	0.002	38.747	0.006
Mali_C-62	C-62	Mali	1979	16.3300	-3.5700	0.736919	0.000006	-16.9	0.2	19.217	0.002	15.780	0.002	39.500	0.007
Mali_FC-62	FC-62	Mali	1979	16.3300	-3.5700	0.737078	0.000010	-16.6	0.2	19.205	0.003	15.781	0.003	39.475	0.011
Mali_SC-63	SC-63	Mali	1979	16.3300	-3.5700	0.725089	0.000007	-16.9	0.3	19.105	0.003	15.774	0.003	39.444	0.011
Mali_St-63	St-63	Mali	1979	16.3300	-3.5700	0.734603	0.000006	-17.9	0.1	18.488	0.001	15.657	0.001	38.810	0.001
Mali_C-63	C-63	Mali	1979	16.3300	-3.5700	0.736981	0.000007	-16.7	0.2	19.206	0.003	15.780	0.004	39.495	0.014
Mali_FC-63	FC-63	Mali	1979	16.3300	-3.5700	0.736992	0.000007	-16.5	0.1	19.191	0.002	15.777	0.002	39.459	0.008
Morocco_SC-136	SC-136	Morocco	1997	32.3100	-4.5300	0.713861	0.000007	-12.5	0.1	18.417	0.002	15.642	0.002	38.586	0.005
Morocco_St-136	St-136	Morocco	1997	32.3100	-4.5300	0.723566	0.000008	-14.1	0.1	18.587	0.001	15.649	0.001	38.729	0.001
Morocco_C-136	C-136	Morocco	1997	32.3100	-4.5300	0.725032	0.000006	-13.0	0.2	18.460	0.004	15.657	0.005	38.644	0.015
Morocco_FC-136	FC-136	Morocco	1997	32.3100	-4.5300	0.724892	0.000007	-12.5	0.3	18.453	0.002	15.657	0.003	38.639	0.009
Morocco_SC-147	SC-147	Morocco	2006	29.8900	-6.5000	0.711370	0.000006	-12.0	0.1	18.696	0.004	15.670	0.004	38.837	0.015
Morocco_St-147	St-147	Morocco	2006	29.8900	-6.5000	0.728734	0.000008	-12.7	0.1	18.924	0.003	15.672	0.003	38.958	0.011
Morocco_C-147	C-147	Morocco	2006	29.8900	-6.5000	0.728770	0.000007	-12.6	0.2	18.701	0.002	15.669	0.002	38.871	0.007
Morocco_FC-147	FC-147	Morocco	2006	29.8900	-6.5000	0.728719	0.000009	-12.3	0.1	18.681	0.003	15.666	0.003	38.843	0.010