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Yousavich, David; Diamond, Charles; Hung, Caroline; Vetushko, George; Peng, Xuefeng; Lyons, Timothy W; Treude, Tina (2026): Salton Sea 2020-2023 Sediment Geochemistry and Sulfate Reduction Rates [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.996717 (DOI registration in progress)

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Published: 2026-08-28

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Abstract:
The following dataset includes sediment geochemistry and sulfate reduction rates for the Salton Sea, a rapidly drying inland lake in California's Coachella Valley. These measurements were conducted to assess how rapid desiccation, a similar phenomenon happening to inland lakes globally, is affecting biogeochemical cycling in the lake (Yousavich et al., 2026). All measurements were conducted between 2020 and 2023, with samples collected aboard a small boat during three sampling campaigns (June 2021, August 2021, April 2022). Water column samples were collected with either a Niskin bottle (2020-2022) or a peristaltic pump (2023) and sediment samples were collected with a large bore sediment sampler.
Keyword(s):
Geochemistry; Lake; sulfate reduction rates
Related to:
Yousavich, David; Diamond, Charles; Hung, Caroline; Vetushko, George; Peng, Xuefeng; Lyons, Timothy W; Treude, Tina (2026): Biogeochemical processes in a rapidly drying inland lake, the Salton Sea. Journal of Great Lakes Research, 102884, https://doi.org/10.1016/j.jglr.2026.102884
Funding:
National Aeronautics and Space Administration (NASA), grant/award no. 80NSSC21K0594: Alternative Earths – How to Build and Sustain a Detectable Biosphere
Coverage:
Latitude: 33.260000 * Longitude: -115.740000
Date/Time Start: 2021-06-20T00:00:00 * Date/Time End: 2022-04-13T00:00:00
Minimum DEPTH, sediment/rock: 0.5 m * Maximum DEPTH, sediment/rock: 29.0 m
Event(s):
SaltonSea_Apr22  * Latitude: 33.260000 * Longitude: -115.740000 * Date/Time: 2022-04-13T00:00:00
SaltonSea_Aug21  * Latitude: 33.260000 * Longitude: -115.740000 * Date/Time: 2021-08-24T00:00:00
SaltonSea_Jun21  * Latitude: 33.260000 * Longitude: -115.740000 * Date/Time: 2021-06-20T00:00:00
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Event labelEventYousavich, David
2 Sample code/labelSample labelYousavich, David
3 LATITUDELatitudeYousavich, DavidGeocode
4 LONGITUDELongitudeYousavich, DavidGeocode
5 DEPTH, sediment/rockDepth sedmYousavich, DavidGeocode
6 DATE/TIMEDate/TimeYousavich, DavidGeocode
7 Nitrate, porewater[NO3]- pwµmol/lYousavich, DavidSpectrophotometer Shimadzu UV-1800
8 Nitrite, porewater[NO2]- pwµmol/lYousavich, DavidSpectrophotometer Shimadzu UV-1800
9 Ammonium, porewater[NH4]+ pwµmol/lYousavich, DavidSpectrophotometer Shimadzu UV-1800
10 Phosphate, porewater[PO4]3- pwµmol/lYousavich, DavidSpectrophotometer Shimadzu UV-1800
11 Iron, porewaterFe2+ pwµmol/lYousavich, DavidSpectrophotometer Shimadzu UV-1800
12 Sulfide, porewaterS2- pwµmol/lYousavich, DavidSpectrophotometer Shimadzu UV-1800
13 Sulfate, porewater[SO4]2- pwµmol/lYousavich, DavidIon chromatograph, Metrohm, Compact IC 761
14 Chloride, porewaterCl- pwµmol/lYousavich, DavidIon chromatograph, Metrohm, Compact IC 761
15 PorosityPoros%Yousavich, DavidDried at 60 °C
16 Carbon, organic, totalTOC%Yousavich, DavidElemental analyzer, Costech ECS 4010
17 Carbon, totalTC%Yousavich, DavidElemental analyzer, Costech ECS 4010
18 Nitrogen, totalTN%Yousavich, DavidElemental analyzer, Costech ECS 4010
19 Sulfur, totalTS%Yousavich, DavidElemental analyzer, Costech ECS 4010
20 Sulfate reduction rateSRRnmol/cm3/dayYousavich, DavidLiquid scintillation counter (Tri-Carb 2910TR, Perkin-Elmer)Sediment; replicate 1
21 Sulfate reduction rateSRRnmol/cm3/dayYousavich, DavidLiquid scintillation counter (Tri-Carb 2910TR, Perkin-Elmer)Sediment; replicate 2
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
302 data points

Data

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

1 
Event		2 
Sample label		3 
Latitude		4 
Longitude		5 
Depth sed [m]		6 
Date/Time		7 
[NO3]- pw [µmol/l]
(Spectrophotometer Shimadzu UV...)		8 
[NO2]- pw [µmol/l]
(Spectrophotometer Shimadzu UV...)		9 
[NH4]+ pw [µmol/l]
(Spectrophotometer Shimadzu UV...)		10 
[PO4]3- pw [µmol/l]
(Spectrophotometer Shimadzu UV...)		11 
Fe2+ pw [µmol/l]
(Spectrophotometer Shimadzu UV...)		12 
S2- pw [µmol/l]
(Spectrophotometer Shimadzu UV...)		13 
[SO4]2- pw [µmol/l]
(Ion chromatograph, Metrohm, C...)		14 
Cl- pw [µmol/l]
(Ion chromatograph, Metrohm, C...)		15 
Poros [%]
(Dried at 60 °C)		16 
TOC [%]
(Elemental analyzer, Costech E...)		17 
TC [%]
(Elemental analyzer, Costech E...)		18 
TN [%]
(Elemental analyzer, Costech E...)		19 
TS [%]
(Elemental analyzer, Costech E...)		20 
SRR [nmol/cm3/day]
(Sediment; replicate 1, Liquid...)		21 
SRR [nmol/cm3/day]
(Sediment; replicate 2, Liquid...)
SaltonSea_Jun21 Sed06202133.26-115.741.02021-06-203.850.49
SaltonSea_Jun21Sed06202133.26-115.742.02021-06-203.930.36
SaltonSea_Jun21Sed06202133.26-115.743.02021-06-203.760.40
SaltonSea_Jun21Sed06202133.26-115.744.02021-06-205.580.53
SaltonSea_Jun21Sed06202133.26-115.745.02021-06-207.600.78
SaltonSea_Jun21Sed06202133.26-115.746.02021-06-202.990.33
SaltonSea_Jun21Sed06202133.26-115.747.02021-06-206.540.68
SaltonSea_Jun21Sed06202133.26-115.748.02021-06-205.910.80
SaltonSea_Jun21Sed06202133.26-115.749.02021-06-205.310.63
SaltonSea_Jun21Sed06202133.26-115.7410.02021-06-204.040.45
SaltonSea_Jun21Sed06202133.26-115.7411.02021-06-204.590.47
SaltonSea_Jun21Sed06202133.26-115.7413.02021-06-204.420.43
SaltonSea_Jun21Sed06202133.26-115.7415.02021-06-203.460.34
SaltonSea_Jun21Sed06202133.26-115.7417.02021-06-203.840.33
SaltonSea_Jun21Sed06202133.26-115.7418.02021-06-202.390.25
SaltonSea_Jun21Sed06202133.26-115.7419.02021-06-203.200.29
SaltonSea_Jun21Sed06202133.26-115.7420.02021-06-201.420.10
SaltonSea_Jun21Sed06202133.26-115.7421.02021-06-201.510.17
SaltonSea_Jun21Sed06202133.26-115.7422.02021-06-201.600.17
SaltonSea_Jun21Sed06202133.26-115.7423.02021-06-201.700.19
SaltonSea_Jun21Sed06202133.26-115.7425.02021-06-201.480.16
SaltonSea_Jun21Sed06202133.26-115.7426.02021-06-201.640.17
SaltonSea_Jun21Sed06202133.26-115.7427.02021-06-201.690.18
SaltonSea_Jun21Sed06202133.26-115.7428.02021-06-201.570.17
SaltonSea_Jun21Sed06202133.26-115.7429.02021-06-202.100.23
SaltonSea_Aug21 Sed08202133.26-115.740.52021-08-240.46.940.75.99.76.9165.5762.1107.996.1
SaltonSea_Aug21Sed08202133.26-115.741.02021-08-24
SaltonSea_Aug21Sed08202133.26-115.741.52021-08-240.00.187.47.37.84.6152.5795.123.751.7
SaltonSea_Aug21Sed08202133.26-115.742.02021-08-240.60
SaltonSea_Aug21Sed08202133.26-115.742.52021-08-240.00.0112.09.87.869.8155.0750.168.787.4
SaltonSea_Aug21Sed08202133.26-115.743.02021-08-240.86
SaltonSea_Aug21Sed08202133.26-115.743.52021-08-241.40.0116.712.69.745.8143.1692.829.743.3
SaltonSea_Aug21Sed08202133.26-115.744.02021-08-240.65
SaltonSea_Aug21Sed08202133.26-115.744.52021-08-242.00.0192.115.814.441.9137.1761.019.254.1
SaltonSea_Aug21Sed08202133.26-115.745.02021-08-240.68
SaltonSea_Aug21Sed08202133.26-115.745.52021-08-240.00.0192.114.76.028.7132.0685.314.219.0
SaltonSea_Aug21Sed08202133.26-115.746.02021-08-240.66
SaltonSea_Aug21Sed08202133.26-115.746.52021-08-241.70.0212.116.511.664.4135.1790.418.011.8
SaltonSea_Aug21Sed08202133.26-115.747.02021-08-240.75
SaltonSea_Aug21Sed08202133.26-115.747.52021-08-240.00.016.328.3129.5758.614.38.7
SaltonSea_Aug21Sed08202133.26-115.748.02021-08-240.71
SaltonSea_Aug21Sed08202133.26-115.748.52021-08-240.00.017.216.7102.8640.021.413.9
SaltonSea_Aug21Sed08202133.26-115.749.02021-08-240.83
SaltonSea_Aug21Sed08202133.26-115.749.52021-08-242.40.017.011.9103.0673.97.04.7
SaltonSea_Aug21Sed08202133.26-115.7410.02021-08-240.51
SaltonSea_Aug21Sed08202133.26-115.7410.52021-08-240.00.0290.216.394.57.3112.2746.725.413.3
SaltonSea_Aug21Sed08202133.26-115.7411.02021-08-240.78
SaltonSea_Aug21Sed08202133.26-115.7411.52021-08-240.00.0304.213.127.41.9101.2719.421.46.1
SaltonSea_Aug21Sed08202133.26-115.7412.02021-08-240.77
SaltonSea_Aug21Sed08202133.26-115.7412.52021-08-249.70.0317.56.699.61.5112.7798.714.88.7
SaltonSea_Aug21Sed08202133.26-115.7413.02021-08-240.72
SaltonSea_Aug21Sed08202133.26-115.7413.52021-08-240.00.0330.94.60.01.6103.7748.57.56.4
SaltonSea_Aug21Sed08202133.26-115.7414.02021-08-240.58
SaltonSea_Aug21Sed08202133.26-115.7414.52021-08-244.413.5
SaltonSea_Aug21Sed08202133.26-115.7415.02021-08-240.82
SaltonSea_Aug21Sed08202133.26-115.7415.52021-08-245.64.9
SaltonSea_Aug21Sed08202133.26-115.7416.02021-08-240.71
SaltonSea_Aug21Sed08202133.26-115.7416.52021-08-244.03.3
SaltonSea_Aug21Sed08202133.26-115.7417.02021-08-240.65
SaltonSea_Aug21Sed08202133.26-115.7417.52021-08-244.31.1
SaltonSea_Aug21Sed08202133.26-115.7418.02021-08-240.71
SaltonSea_Aug21Sed08202133.26-115.7419.02021-08-240.53
SaltonSea_Apr22 Sed04202233.26-115.741.02022-04-134.488.51
SaltonSea_Apr22Sed04202233.26-115.743.02022-04-135.549.28
SaltonSea_Apr22Sed04202233.26-115.745.02022-04-137.624.29
SaltonSea_Apr22Sed04202233.26-115.747.02022-04-136.272.10
SaltonSea_Apr22Sed04202233.26-115.749.02022-04-135.541.41
SaltonSea_Apr22Sed04202233.26-115.7410.02022-04-135.581.67
SaltonSea_Apr22Sed04202233.26-115.7412.02022-04-133.891.50
SaltonSea_Apr22Sed04202233.26-115.7414.02022-04-133.971.49
SaltonSea_Apr22Sed04202233.26-115.7416.02022-04-132.451.36
SaltonSea_Apr22Sed04202233.26-115.7417.02022-04-133.581.79