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Jardine, Gabriella; Crocker, Anya J; Bailey, Ian; Cooper, Mathew; Milton, James; Wilson, Paul A (2021): Sr, Nd and Pb isotope characterisation of aeolian silt mantles from the California Channel Islands [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.932942, In: Jardine, G et al. (2021): Sr, Nd and Pb isotope characterisation of the sources and sinks of terrigenous material in the North American Southwest and California Borderland Basins [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.932944

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Published: 2021-06-23 • DOI registered: 2021-12-23

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Abstract:
Strontium, neodymium and lead isotopic signatures were measured on sediment samples from silt mantles that drape the bedrock of Anacapa and San Clemente Islands offshore California. These silt mantles are interpreted to be aeolian in origin and were deposited in the Late Quaternary (Muhs et al. 2007). All sediment samples had carbonates, organic material, biogenic silica and Fe-Mn oxides removed before full chemical digestion prior to analysis. Size fractions analysed were <63 μm and <10 μm.
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
Further details:
Muhs, Daniel R; Budahn, James; Beann, Jossh; Skipp, Gary; Fisher, Eric (2007): Airborne dust transport to the eastern Pacific Ocean off southern California: Evidence from San Clemente Island. Journal of Geophysical Research: Atmospheres, 112(D13), https://doi.org/10.1029/2006JD007577
Coverage:
Median Latitude: 33.401315 * Median Longitude: -118.884280 * South-bound Latitude: 32.889406 * West-bound Longitude: -119.366035 * North-bound Latitude: 34.015606 * East-bound Longitude: -118.482818
Event(s):
SiltMantles_ANA (ANA)  * Latitude: 34.015606 * Longitude: -119.366035 * Location: Channel Islands, California, U.S.A. * Method/Device: Sediment sample (SES)
SiltMantles_SCl (SCl)  * Latitude: 32.889406 * Longitude: -118.482818 * Location: Channel Islands, California, U.S.A. * Method/Device: Sediment sample (SES)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Event labelEventCrocker, Anya J
2 Sample code/labelSample labelCrocker, Anya J
3 Grain size, maximumGrain size maxµmCrocker, Anya J
4 LATITUDELatitudeCrocker, Anya JGeocode – Approximate
5 LONGITUDELongitudeCrocker, Anya JGeocode – Approximate
6 Strontium-87/Strontium-86 ratio87Sr/86SrCrocker, Anya J
7 Strontium-87/Strontium-86 ratio, error87Sr/86Sr e±Crocker, Anya JError (1 SE)
8 Neodymium-143/Neodymium-144 ratio143Nd/144NdCrocker, Anya J
9 Neodymium-143/Neodymium-144 ratio, error143Nd/144Nd e±Crocker, Anya JError (2 SE)
10 ε-Neodymiumε-NdCrocker, Anya J
11 ε-Neodymium, errorε-Nd e±Crocker, Anya J2 sigma internal error
12 Lead-206/Lead-204 ratio206Pb/204PbCrocker, Anya JError (1 SE)
13 Lead-206/Lead-204 ratio206Pb/204PbCrocker, Anya JError (1 SE)
14 Lead-207/Lead-204 ratio207Pb/204PbCrocker, Anya JError (1 SE)
15 Lead-207/Lead-204 ratio207Pb/204PbCrocker, Anya JError (1 SE)
16 Lead-208/Lead-204 ratio208Pb/204PbCrocker, Anya JError (1 SE)
17 Lead-208/Lead-204 ratio208Pb/204PbCrocker, Anya JError (1 SE)
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
154 data points

Data

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

1 
Event		2 
Sample label		3 
Grain size max [µm]		4 
Latitude
(Approximate)		5 
Longitude
(Approximate)		6 
87Sr/86Sr		7 
87Sr/86Sr e [±]
(Error (1 SE))		8 
143Nd/144Nd		9 
143Nd/144Nd e [±]
(Error (2 SE))		10 
ε-Nd		11 
ε-Nd e [±]
(2 sigma internal error)		12 
206Pb/204Pb
(Error (1 SE))		13 
206Pb/204Pb
(Error (1 SE))		14 
207Pb/204Pb
(Error (1 SE))		15 
207Pb/204Pb
(Error (1 SE))		16 
208Pb/204Pb
(Error (1 SE))		17 
208Pb/204Pb
(Error (1 SE))
SiltMantles_ANA ANA 116334.015606-119.3660350.7086100.0000080.5121630.000005-9.260.0918.80880.002115.64390.002039.05090.0063
SiltMantles_ANAANA 111034.015606-119.3660350.7101090.0000070.5122210.000003-8.130.0618.97860.000515.65410.000438.99840.0012
SiltMantles_ANAANA 236334.015606-119.3660350.7099190.0000070.5121180.000004-10.140.0818.96300.002315.65890.002139.35110.0067
SiltMantles_ANAANA 316334.015606-119.3660350.7105750.0000060.5120160.000004-12.140.0918.91590.001715.65840.001639.33670.0051
SiltMantles_ANAANA 131034.015606-119.3660350.7091940.0000060.5121270.000003-9.980.0719.06660.000715.66190.000539.16420.0014
SiltMantles_SCl SCl 46332.889406-118.4828180.7095820.0000070.5121100.000004-10.300.0819.09830.006315.68790.005839.33360.0186
SiltMantles_SClSCl 41032.889406-118.4828180.7094150.0000070.5121090.000003-10.320.0619.10080.000815.66810.000539.23420.0017
SiltMantles_SClSCl 136332.889406-118.4828180.7092140.0000080.5121310.000006-9.890.1119.01110.003115.66290.002939.16740.0092
SiltMantles_SClSCl 186332.889406-118.4828180.7091920.0000060.5121480.000006-9.560.1219.06020.003015.66840.002739.15070.0087
SiltMantles_SClSCl 18S6332.889406-118.4828180.7099270.0000100.5121860.000004-8.820.0719.02930.005015.67650.004639.13840.0145
SiltMantles_SClSCl 181032.889406-118.4828180.7092000.0000060.5121330.000003-9.850.0619.17190.000715.70530.000539.28850.0013