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Golombek, Nina; Scheingross, Joel S; Repasch, Marisa N; Hovius, Niels; Sachse, Dirk; Lupker, Maarten; Eglinton, Timothy Ian; Menges, Johanna; Haghipour, Negar; Poulson, Simon R; Gröcke, Darren R; Latosinski, Francisco G; Szupiany, Ricardo N (2021): Suspended sediment collected from Puente La Valle (PLV, -25.655°S, -60.130°W) between 2016 - 2018 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.932545, In: Golombek, N et al. (2021): Seasonal variability of fluvial organic carbon composition between 2016-2018 in the Río Bermejo, Argentina [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.932558

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Abstract:
These data were collected from the Río Bermejo in northern Argentina. To determine the seasonal variability in the particulate organic carbon composition of exported river sediment, we collected weekly suspended sediment samples (March 2016 to March 2018) at the Puente Lavalle (PLV) monitoring site, ~870 river km downstream of the mountain front (-25.655°S, -60.130°W). Surface water samples were collected from a bridge using a river-rinsed bucket and were filtered through a 0.22 µm polyethersulfone membrane. Samples were stored on site at ambient temperatures for up to one year, transferred to Germany and subsequently stored at ~4°C until processing.
Suspended sediment was rinsed from filters into pre-combusted glass evaporating dishes using ultra-pure (18.2 M) water, oven-dried at 40°C for >48 hr, and homogenized in an agate mortar without crushing. Geochemical and grain size analyses required 0.8 g sediment; for samples <0.8 g, we combined consecutive weekly samples to create a new bulk sample of >0.8 g (Table S1). We split sediment samples into aliquots for grain size analysis via laser diffraction and geochemical analyses. Sediment particle size distributions were measured on ~0.2 g aliquots using a laser diffraction particle size analyzer (Retsch/Horiba LA-950V2). Aliquots for geochemical analyses were ground to <63 µm. The homogenized suspended sediment, bedrock, soil and leaf litter aliquots were further split for total nitrogen measurement (TN, wt%) and organic carbon analyses including total organic carbon (TOC, wt%), stable carbon isotope composition (δ13COC), and radiocarbon fraction modern (Fm). We decarbonated the aliquots for POC measurements using a liquid HCl leach following Galy et al., (2007).
TOC and TN measurements were split between facilities at the German Research Centre for Geosciences (GFZ), Durham University, and University of Nevada Reno (UNR) using an elemental analyzer (EA). δ13COC was measured with a coupled EA-isotope ratio mass spectrometer (EA-IRMS). All isotopic compositions are reported using standard delta (δ) notation in per mil (‰) relative to Vienna PeeDee Belemnite (VPDB). Calibration and accuracy were monitored through analyses of in-house standards (Glutamic Acid, 40.82% C, 9.52% N at Durham; Boden3, HEKATECH at GFZ), which were calibrated against international standards (e.g., USGS 40, USGS 24, IAEA 600, IAEA CH3, IAEA CH7, IAEA N1, IAEA N2).
Radiocarbon content was measured for a subset of 29 samples at ETH Zürich using a combined EA and accelerator mass spectrometer (EA-AMS) (Ruff et al. 2010; McIntyre et al., 2017). All 14C /12C ratios are reported as fraction modern (Fm, equivalent to F14C as defined by Reimer et al. (2004)) relative to 95% of the 14C activity of NBS Oxalic Acid II in 1950 (δ13COC = -17.8‰) and normalized to δ13COC = -25‰ of VPDB.\n\nThis geochemical dataset is supported by hydrologic measurements of daily water discharge at the El Colorado gauging station (river km 1086, SNIH, https://snih.hidricosargentina.gob.ar/) collected between 2016 and 2018.
Keyword(s):
biogeochemistry; meandering river; organic carbon (OC); river sediment
Related to:
Golombek, Nina; Scheingross, Joel S; Repasch, Marisa N; Hovius, Niels; Sachse, Dirk; Lupker, Maarten; Eglinton, Timothy Ian; Menges, Johanna; Haghipour, Negar; Poulson, Simon R; Gröcke, Darren R; Latosinski, Francisco G; Szupiany, Ricardo N (in review): Fluvial organic carbon composition regulated by seasonal variability in lowland river migration. Geophysical Research Letters
Project(s):
StRATEGy international research training group (StRATEGy)
Coverage:
Median Latitude: -25.654888 * Median Longitude: -60.129914 * South-bound Latitude: -25.655000 * West-bound Longitude: -60.130000 * North-bound Latitude: -25.653461 * East-bound Longitude: -60.128814
Date/Time Start: 2016-03-18T00:00:00 * Date/Time End: 2018-02-21T00:00:00
Event(s):
PLV_01042016  * Latitude: -25.655000 * Longitude: -60.130000 * Date/Time: 2016-04-01T00:00:00 * Location: Puerto lavalle * Method/Device: Bucket, plastic (WB)
PLV_01062016  * Latitude: -25.655000 * Longitude: -60.130000 * Date/Time: 2016-06-01T00:00:00 * Location: Puerto lavalle * Method/Device: Bucket, plastic (WB)
PLV_01062017  * Latitude: -25.653461 * Longitude: -60.128814 * Date/Time Start: 2017-06-01T00:00:00 * Date/Time End: 2017-06-09T00:00:00 * Location: Puerto lavalle * Method/Device: Bucket, plastic (WB) * Comment: River km 865
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Event labelEventGolombek, Nina
2 Latitude of eventLatitudeGolombek, Nina
3 Longitude of eventLongitudeGolombek, Nina
4 Sample IDSample IDGolombek, Nina
5 Sample commentSample commentGolombek, Nina
6 DATE/TIMEDate/TimeGolombek, NinaGeocode – Of collection
7 Sampling dateSampling dateGolombek, Nina
8 SeasonSeasonGolombek, Nina
9 River discharge, dailyQ daym3Golombek, NinaAt El Colorado
10 Carbon, organic, totalTOC%Golombek, NinaElement analyser (EA)[wt%]
11 δ13C, organic carbonδ13C Corg‰ PDBGolombek, NinaElement analyser isotope ratio mass spectrometer (EA-IRMS)[‰]
12 Nitrogen, totalTN%Golombek, NinaElement analyser (EA)[wt%]
13 Carbon, organic/Nitrogen, total ratioC org/TNGolombek, NinaCalculated
14 Nitrogen, total/Carbon, organic ratioTN/C orgGolombek, NinaCalculated
15 Fraction modern carbonF14CGolombek, NinaElement analyzer coupled to an accelerator mass spectrometer (EA-AMS)
16 Median, grain sizeD50µmGolombek, NinaParticle size analyser (Retsch/Horiba LA-950V2)
17 Sample IDSample IDGolombek, NinaETH Sample ID
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
696 data points

Data

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

1 
Event		2 
Latitude		3 
Longitude		4 
Sample ID		5 
Sample comment		6 
Date/Time
(Of collection)		7 
Sampling date		8 
Season		9 
Q day [m3]
(At El Colorado)		10 
TOC [%]
([wt%], Element analyser (EA))		11 
δ13C Corg [‰ PDB]
([‰], Element analyser isotope...)		12 
TN [%]
([wt%], Element analyser (EA))		13 
C org/TN
(Calculated)		14 
TN/C org
(Calculated)		15 
F14C
(Element analyzer coupled to a...)		16 
D50 [µm]
(Particle size analyser (Retsc...)		17 
Sample ID
(ETH Sample ID)
PLV_18032016 -25.6550-60.1300PLV_18.03.20162016-03-18High Flow1292.670.36-25.40.094.050.250.7593810.1.1
PLV_24032016 -25.6550-60.1300PLV_24.03.20162016-03-24High Flow1036.370.35-25.10.093.930.254.99
PLV_01042016 -25.6550-60.1300PLV_01.04.20162016-04-01High Flow695.990.35-25.20.093.910.265.12
PLV_08042016 -25.6550-60.1300PLV_08.04.20162016-04-08High Flow586.970.50-26.20.104.950.200.794.4698431.1.2
PLV_12042016 -25.6550-60.1300PLV_12.04.20162016-04-12High Flow829.980.33-25.20.084.090.240.784.2693811.1.1
PLV_22042016 -25.6550-60.1300PLV_22.04.20162016-04-22High Flow615.840.33-25.00.093.650.274.76
PLV_29042016 -25.6550-60.1300PLV_29.04.20162016-04-29High Flow518.330.36-25.10.103.640.274.42
PLV_06052016 -25.6550-60.1300PLV_06.05.20162016-05-06Intermediate379.300.37-24.90.103.660.274.49
PLV_14052016 -25.6550-60.1300PLV_14.05.20162016-05-14Intermediate307.170.38-25.10.113.440.293.88
PLV_20052016 -25.6550-60.1300PLV_20.05.20162016-05-20Intermediate299.750.37-25.20.103.740.275.08
PLV_27052016 -25.6550-60.1300PLV_27.05.20162016-05-27Intermediate426.570.36-25.00.093.960.250.814.7793812.1.1
PLV_01062016 -25.6550-60.1300PLV_01.06.20162016-06-01Low Flow386.970.38-25.30.172.260.440.814.5298432.1.2
PLV_10062016 -25.6550-60.1300PLV_10.06.20162016-06-10Low Flow329.740.40-25.30.104.040.254.70
PLV_17062016 -25.6550-60.1300PLV_17.06.20162016-06-17Low Flow288.960.41-25.30.113.750.274.48
PLV_24062016 -25.6550-60.1300PLV_24.06.20162016-06-24Low Flow245.610.40-25.40.113.680.274.71
PLV_27062016 -25.6550-60.1300PLV_27.06.20162016-06-27Low Flow240.820.41-25.40.113.710.274.44
PLV_06072016 -25.6550-60.1300PLV_06.07.20162016-07-06Low Flow227.570.43-25.40.113.870.264.64
PLV_12072016 -25.6550-60.1300PLV_12.07.20162016-07-12Low Flow215.120.41-25.60.123.450.294.96
PLV_22072016 -25.6550-60.1300PLV_22.07.20162016-07-22Low Flow184.180.49-26.40.124.120.240.734.8993813.1.1
PLV_29072016 -25.6550-60.1300PLV_29.07.20162016-07-29Low Flow173.060.50-26.60.124.190.244.64
PLV_06082016 -25.6550-60.1300PLV_06.08.20162016-08-06Low Flow148.900.54-26.60.124.490.224.78
PLV_12082016 -25.6550-60.1300PLV_12.08.20162016-08-12Low Flow139.310.50-26.00.163.150.323.94
PLV_19082016 -25.6550-60.1300PLV_19.08.20162016-08-19Low Flow128.770.43-25.40.123.570.280.765.2998433.1.1
PLV_26082016 -25.6550-60.1300PLV_26.08.20162016-08-26Low Flow122.840.49-25.90.133.760.275.44
PLV_02092016 -25.6550-60.1300PLV_02.09.2016Combined sample, for cases when weekly samples that had < 0.8 g of sediment2016-Sep-02, 2016-Sep-08Low Flow88.900.51-26.10.153.410.294.78
PLV_16092016 -25.6550-60.1300PLV_16.09.2016Combined sample, for cases when weekly samples that had < 0.8 g of sediment2016-Sep-16, 2016-Sep-23, 2016-Sep-30Low Flow74.400.63-26.20.193.330.300.714.7893814.1.1
PLV_07102016 -25.6550-60.1300PLV_07.10.2016Combined sample, for cases when weekly samples that had < 0.8 g of sediment2016-Oct-07, 2016-Oct-12, 2016-Oct-20Low Flow67.270.56-26.10.192.950.340.704.7193815.1.1
PLV_24102016 -25.6550-60.1300PLV_24.10.2016Combined sample, for cases when weekly samples that had < 0.8 g of sediment2016-Oct-24, 2016-Nov-03, 2016-Nov-11, 2016-Nov-17Low Flow74.710.60-26.20.193.160.324.86
PLV_24112016 -25.6550-60.1300PLV_24.11.20162016-11-24Low Flow83.320.36-25.30.132.740.360.714.1593816.1.1
PLV_02122016 -25.6550-60.1300PLV_02.12.20162016-12-02Intermediate102.490.45-25.10.143.230.310.713.7498434.1.1
PLV_08122016 -25.6550-60.1300PLV_08.12.20162016-12-08Intermediate564.140.34-24.90.103.440.294.35
PLV_16122016 -25.6550-60.1300PLV_16.12.20162016-12-16Intermediate634.210.33-24.90.103.290.304.22
PLV_23122016 -25.6550-60.1300PLV_23.12.20162016-12-23Intermediate424.240.37-25.20.113.340.304.39
PLV_30122016 -25.6550-60.1300PLV_30.12.20162016-12-30Intermediate257.540.40-25.40.133.090.320.724.2298435.1.1
PLV_06012017 -25.6550-60.1300PLV_06.01.20172017-01-06Intermediate347.090.38-25.10.123.210.313.56
PLV_13012017 -25.6550-60.1300PLV_13.01.20172017-01-13High Flow603.570.34-24.70.113.080.330.744.5298436.1.1
PLV_18012017 -25.6550-60.1300PLV_18.01.20172017-01-18High Flow833.840.37-25.10.103.690.273.42
PLV_27012017 -25.6550-60.1300PLV_27.01.20172017-01-27High Flow583.800.48-25.20.114.380.230.564.3693817.1.1
PLV_24032017 -25.6550-60.1300PLV_24.03.20172017-03-24High Flow1044.120.38-25.40.103.800.265.31
PLV_30032017 -25.6550-60.1300PLV_30.03.20172017-03-30High Flow1075.060.32-25.70.093.540.280.724.1093818.1.1
PLV_07042017 -25.6550-60.1300PLV_07.04.20172017-04-07High Flow1036.740.34-25.30.084.200.244.38
PLV_14042017 -25.6550-60.1300PLV_14.04.20172017-04-14High Flow1223.610.35-25.40.093.900.264.32
PLV_21042017 -25.6550-60.1300PLV_21.04.20172017-04-21High Flow930.230.36-25.50.093.980.254.62
PLV_28042017 -25.6550-60.1300PLV_28.04.20172017-04-28High Flow735.660.37-25.60.094.060.250.794.4493819.1.1
PLV_04052017 -25.6550-60.1300PLV_04.05.20172017-05-04Intermediate1027.720.36-25.50.094.000.254.74
PLV_08052017 -25.6550-60.1300PLV_08.05.20172017-05-08Intermediate564.660.39-25.70.094.300.234.73
PLV_19052017 -25.6550-60.1300PLV_19.05.20172017-05-19Intermediate442.400.37-25.70.094.090.240.804.6898437.1.1
PLV_01062017 -25.6535-60.1288PLV_01.06.20172017-06-01Low Flow318.170.50-23.80.105.040.200.845.6493820.1.1
PLV_09062017 -25.6550-60.1300PLV_09.06.20172017-06-09Low Flow309.410.44-24.70.114.030.255.16
PLV_12062017 -25.6535-60.1288PLV_12.06.2017Combined sample, for cases when weekly samples that had < 0.8 g of sediment2017-Jun-12, 2017-Jun-22Low Flow256.160.44-25.20.114.020.250.774.5898438.1.1
PLV_28062017 -25.6550-60.1300PLV_28.06.2017Combined sample, for cases when weekly samples that had < 0.8 g of sediment2017-Jun-28, 2017-Jul-09Low Flow182.900.45-25.50.114.120.245.23
PLV_12072017 -25.6550-60.1300PLV_12.07.2017Combined sample, for cases when weekly samples that had < 0.8 g of sediment2017-Jul-12, 2017-Jul-21Low Flow153.240.48-25.80.114.330.230.7598439.1.1
PLV_26072017 -25.6550-60.1300PLV_26.07.2017Combined sample, for cases when weekly samples that had < 0.8 g of sediment2017-Jul-26, 2017-Aug-02Low Flow115.200.52-26.00.124.330.23
PLV_09082017 -25.6550-60.1300PLV_09.08.2017Combined sample, for cases when weekly samples that had < 0.8 g of sediment2017-Aug-09, 2017-Aug-16, 2017-Aug-24Low Flow94.190.53-26.10.124.390.230.7393821.1.1
PLV_31082017 -25.6550-60.1300PLV_31.08.2017Combined sample, for cases when weekly samples that had < 0.8 g of sediment2017-Aug-31, 2017-Sep-07, 2017-Sep-14, 2017-Sep-22Low Flow83.880.57-26.50.144.100.24
PLV_29092017 -25.6550-60.1300PLV_29.09.2017Combined sample, for cases when weekly samples that had < 0.8 g of sediment2017-Sep-29, 2017-Oct-06, 2017-Oct-09, 2017-Oct-19, 2017-Oct-25, 2017-Nov-02Low Flow60.630.72-26.70.193.760.270.6798440.1.1
PLV_09112017 -25.6550-60.1300PLV_09.11.2017Combined sample, for cases when weekly samples that had < 0.8 g of sediment2017-Nov-09, 2017-Nov-17, 2017-Nov-23Low Flow67.520.92-26.90.303.080.320.6693822.1.1
PLV_01122017 -25.6550-60.1300PLV_01.12.2017Combined sample, for cases when weekly samples that had < 0.8 g of sediment2017-Dec-01, 2017-Dec-08Intermediate59.380.54-26.40.163.390.290.7398441.1.1
PLV_11122017 -25.6535-60.1288PLV_11.12.20172017-12-11Intermediate152.180.43-25.40.133.310.300.7498442.1.1
PLV_20122017 -25.6550-60.1300PLV_20.12.20172017-12-20Intermediate170.110.42-25.10.113.790.264.35
PLV_28122017 -25.6550-60.1300PLV_28.12.20172017-12-28Intermediate557.990.35-24.40.103.460.290.794.4298443.1.1
PLV_02012018 -25.6550-60.1300PLV_02.01.20182018-01-02High Flow669.670.35-24.80.093.880.260.804.3093823.1.1
PLV_12012018 -25.6535-60.1288PLV_12.01.20182018-01-12High Flow452.000.32-24.80.093.590.283.61
PLV_19012018 -25.6550-60.1300PLV_19.01.20182018-01-19High Flow498.190.32-25.20.093.610.284.25
PLV_24012018 -25.6550-60.1300PLV_24.01.20182018-01-24High Flow832.540.33-25.00.093.690.274.32
PLV_31012018 -25.6550-60.1300PLV_31.01.20182018-01-31High Flow953.410.31-25.30.093.410.290.784.3798444.1.1
PLV_07022018 -25.6550-60.1300PLV_07.02.20182018-02-07High Flow1141.980.33-25.60.122.740.373.96
PLV_16022018 -25.6550-60.1300PLV_16.02.20182018-02-16High Flow1201.950.29-25.70.102.900.350.804.6993824.1.1
PLV_21022018 -25.6535-60.1288PLV_21.02.20182018-02-21High Flow1230.270.31-25.60.103.130.323.90