de.pangaea.dataset935586 und dataset PANGAEA

info@pangaea.de

https://www.pangaea.de/ information pointOfContact 2026-07-15T20:25:35Z https://doi.pangaea.de/10.1594/PANGAEA.935586 2021-09-08T08:51:20 publication https://doi.org/10.1594/PANGAEA.935586 Gensel, Julia

julchen3988@hotmail.de

https://orcid.org/0000-0002-8948-2231 information author Humphries, Marc

Marc.Humphries@wits.ac.za

https://orcid.org/0000-0002-4047-1451 information author Zabel, Matthias

mzabel@uni-bremen.de

https://orcid.org/0000-0003-4681-1821 information author Sebag, David

davidsebag.ird@gmail.com

https://orcid.org/0000-0002-6446-6921 information author Hahn, Annette

hahnette@hotmail.com

https://orcid.org/0000-0002-3647-473X information author Schefuß, Enno

eschefuss@marum.de

https://orcid.org/0000-0002-5960-930X information author PANGAEA

info@pangaea.de

https://www.pangaea.de/ information publisher tableDigital Surface sediments (n=41) reflecting modern times (uppermost 10 cm) were collected during a November/December 2018 field campaign along the course of the Mkhuze River and a transect into Lake St. Lucia (KwaZulu Natal Province, South Africa). In addition, plant species (n=10) were collected based on previous reports of dominant vegetation communities and local occurrences. All samples were extracted soon after with a mixture of dichloromethane and methanol (9:1), purified, and fractionated. The apolar fraction was finally analyzed for its n-alkane concentrations and corresponding compound-specific carbon and hydrogen isotope compositions. Sub-samples of the surface sediments were also analyzed for (i) organic matter content (total organic carbon) and composition (d13C, carbon-to-nitrogen ratio) after decalcification, and (ii) for thermal indices (Hydrogen Index, R-index, I-index) using Rock-Eval analyses. The study's objective was to evaluate the most extensive freshwater wetland system in South Africa regarding its current condition and functioning by identifying the origin and transport pathways of sedimentary organic matter. completed Gensel, Julia

julchen3988@hotmail.de

https://orcid.org/0000-0002-8948-2231 information principalInvestigator d13C dD n-alkanes organic matter plant waxes Rock-Eval South Africa wetland theme 1995-01-01 creation PANGAEA

info@pangaea.de

https://www.pangaea.de/ information pointOfContact TRACES Tracing Human and Climate impacts in South Africa theme 1995-01-01 creation PANGAEA

info@pangaea.de

https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-4.0: Creative Commons Attribution 4.0 International textTable und geoscientificInformation 32.01755 32.561083 -27.9457 -27.5839166 0.1 0.1 Event label thematicClassification Latitude of event thematicClassification Longitude of event thematicClassification DEPTH, sediment/rock physicalMeasurement m m Sample type thematicClassification Sample comment thematicClassification Species thematicClassification n-Alkane C16 physicalMeasurement ng/g ng/g n-Alkane C17 physicalMeasurement ng/g ng/g n-Alkane C18 physicalMeasurement ng/g ng/g n-Alkane C19 physicalMeasurement ng/g ng/g n-Alkane C20 physicalMeasurement ng/g ng/g n-Alkane C21 physicalMeasurement ng/g ng/g n-Alkane C22 physicalMeasurement ng/g ng/g n-Alkane C23 physicalMeasurement ng/g ng/g n-Alkane C24 physicalMeasurement ng/g ng/g n-Alkane C25 physicalMeasurement ng/g ng/g n-Alkane C26 physicalMeasurement ng/g ng/g n-Alkane C27 physicalMeasurement ng/g ng/g n-Alkane C28 physicalMeasurement ng/g ng/g n-Alkane C29 physicalMeasurement ng/g ng/g n-Alkane C30 physicalMeasurement ng/g ng/g n-Alkane C31 physicalMeasurement ng/g ng/g n-Alkane C32 physicalMeasurement ng/g ng/g n-Alkane C33 physicalMeasurement ng/g ng/g n-Alkane C34 physicalMeasurement ng/g ng/g n-Alkane C35 physicalMeasurement ng/g ng/g n-Alkane C23, δ13C physicalMeasurement ‰ PDB ‰ PDB n-Alkane C23, δ13C, standard deviation physicalMeasurement ± ± n-Alkane C25, δ13C physicalMeasurement ‰ PDB ‰ PDB n-Alkane C25, δ13C, standard deviation physicalMeasurement ± ± n-Alkane C27, δ13C physicalMeasurement ‰ PDB ‰ PDB n-Alkane C27, δ13C, standard deviation physicalMeasurement ± ± n-Alkane C29, δ13C physicalMeasurement ‰ PDB ‰ PDB n-Alkane C29, δ13C, standard deviation physicalMeasurement ± ± n-Alkane C31, δ13C physicalMeasurement ‰ PDB ‰ PDB n-Alkane C31, δ13C, standard deviation physicalMeasurement ± ± n-Alkane C33, δ13C physicalMeasurement ‰ PDB ‰ PDB n-Alkane C33, δ13C, standard deviation physicalMeasurement ± ± n-Alkane C35, δ13C physicalMeasurement ‰ PDB ‰ PDB n-Alkane C35, δ13C, standard deviation physicalMeasurement ± ± n-Alkane C25, δD physicalMeasurement ‰ SMOW ‰ SMOW n-Alkane C25, δD, standard deviation physicalMeasurement ± ± n-Alkane C27, δD physicalMeasurement ‰ SMOW ‰ SMOW n-Alkane C27, δD, standard deviation physicalMeasurement ± ± n-Alkane C29, δD physicalMeasurement ‰ SMOW ‰ SMOW n-Alkane C29, δD, standard deviation physicalMeasurement ± ± n-Alkane C31, δD physicalMeasurement ‰ SMOW ‰ SMOW n-Alkane C31, δD, standard deviation physicalMeasurement ± ± n-Alkane C33, δD physicalMeasurement ‰ SMOW ‰ SMOW n-Alkane C33, δD, standard deviation physicalMeasurement ± ± n-Alkane C35, δD physicalMeasurement ‰ SMOW ‰ SMOW n-Alkane C35, δD, standard deviation physicalMeasurement ± ± Carbon, organic, total physicalMeasurement % % Nitrogen, total physicalMeasurement % % δ13C, bulk carbonate physicalMeasurement ‰ PDB ‰ PDB Carbon/Nitrogen ratio thematicClassification Hydrogen index thematicClassification I-index thematicClassification R-Index thematicClassification text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.935586?format=textfile download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. EVENT LABEL: MK01-10 * LATITUDE: -27.598700 * LONGITUDE: 32.302083 * LOCATION: Mkuze River TRACES fieldtrip to the Mkuze (MK) River catchment in November/December 2018 EVENT LABEL: MK02-2 * LATITUDE: -27.654833 * LONGITUDE: 32.403083 * LOCATION: Mkuze River EVENT LABEL: MK02-3 * LATITUDE: -27.654833 * LONGITUDE: 32.403083 * LOCATION: Mkuze River EVENT LABEL: MK03-1 * LATITUDE: -27.662800 * LONGITUDE: 32.419883 * LOCATION: Mkuze River EVENT LABEL: MK03-2 * LATITUDE: -27.662800 * LONGITUDE: 32.419883 * LOCATION: Mkuze River EVENT LABEL: MK03-3 * LATITUDE: -27.662800 * LONGITUDE: 32.419883 * LOCATION: Mkuze River EVENT LABEL: MK04-1 * LATITUDE: -27.594367 * LONGITUDE: 32.017550 * LOCATION: Mkuze River TRACES fieldtrip to the Mkuze (MK) River catchment in November/December 2018 EVENT LABEL: MK05-1 * LATITUDE: -27.583917 * LONGITUDE: 32.147133 * LOCATION: Mkuze River TRACES fieldtrip to the Mkuze (MK) River catchment in November/December 2018 EVENT LABEL: MK06-1 * LATITUDE: -27.591833 * LONGITUDE: 32.218533 * LOCATION: Mkuze River TRACES fieldtrip to the Mkuze (MK) River catchment in November/December 2018 EVENT LABEL: MK07-2 * LATITUDE: -27.841167 * LONGITUDE: 32.478383 * LOCATION: Mkuze River EVENT LABEL: MK07-3 * LATITUDE: -27.841167 * LONGITUDE: 32.478383 * LOCATION: Mkuze River EVENT LABEL: MK07-4 * LATITUDE: -27.841167 * LONGITUDE: 32.478383 * LOCATION: Mkuze River EVENT LABEL: MK07-5_1 * LATITUDE: -27.841167 * LONGITUDE: 32.478383 * LOCATION: Mkuze River EVENT LABEL: MK07-5_2 * LATITUDE: -27.841167 * LONGITUDE: 32.478383 * LOCATION: Mkuze River EVENT LABEL: MK07-6 * LATITUDE: -27.841167 * LONGITUDE: 32.478383 * LOCATION: Mkuze River EVENT LABEL: MK07-7 * LATITUDE: -27.841167 * LONGITUDE: 32.478383 * LOCATION: Mkuze River EVENT LABEL: MK08-2 * LATITUDE: -27.889583 * LONGITUDE: 32.483050 * LOCATION: Mkuze River TRACES fieldtrip to the Mkuze (MK) River catchment in November/December 2018 EVENT LABEL: MK08-4 * LATITUDE: -27.886300 * LONGITUDE: 32.483783 * LOCATION: Mkuze River TRACES fieldtrip to the Mkuze (MK) River catchment in November/December 2018 EVENT LABEL: MK09-2 * LATITUDE: -27.852383 * LONGITUDE: 32.476833 * LOCATION: Mkuze River TRACES fieldtrip to the Mkuze (MK) River catchment in November/December 2018 EVENT LABEL: MK10-1 * LATITUDE: -27.696250 * LONGITUDE: 32.474550 * LOCATION: Mkuze River TRACES fieldtrip to the Mkuze (MK) River catchment in November/December 2018 EVENT LABEL: MK12-1 * LATITUDE: -27.696117 * LONGITUDE: 32.467917 * LOCATION: Mkuze River TRACES fieldtrip to the Mkuze (MK) River catchment in November/December 2018 EVENT LABEL: MK12-3 * LATITUDE: -27.696117 * LONGITUDE: 32.467917 * LOCATION: Mkuze River EVENT LABEL: MK13-1 * LATITUDE: -27.862417 * LONGITUDE: 32.480467 * LOCATION: Mkuze River TRACES fieldtrip to the Mkuze (MK) River catchment in November/December 2018 EVENT LABEL: MK14-1 * LATITUDE: -27.856667 * LONGITUDE: 32.478550 * LOCATION: Mkuze River TRACES fieldtrip to the Mkuze (MK) River catchment in November/December 2018 EVENT LABEL: MK15-1 * LATITUDE: -27.865033 * LONGITUDE: 32.484033 * LOCATION: Mkuze River TRACES fieldtrip to the Mkuze (MK) River catchment in November/December 2018 EVENT LABEL: MK16-1 * LATITUDE: -27.870050 * LONGITUDE: 32.484500 * LOCATION: Mkuze River TRACES fieldtrip to the Mkuze (MK) River catchment in November/December 2018 EVENT LABEL: MK17-1 * LATITUDE: -27.873800 * LONGITUDE: 32.483800 * LOCATION: Mkuze River TRACES fieldtrip to the Mkuze (MK) River catchment in November/December 2018 EVENT LABEL: MK18-1 * LATITUDE: -27.877967 * LONGITUDE: 32.483450 * LOCATION: Mkuze River TRACES fieldtrip to the Mkuze (MK) River catchment in November/December 2018 EVENT LABEL: MK19-1 * LATITUDE: -27.881883 * LONGITUDE: 32.482283 * LOCATION: Mkuze River TRACES fieldtrip to the Mkuze (MK) River catchment in November/December 2018 EVENT LABEL: MK20-1 * LATITUDE: -27.725417 * LONGITUDE: 32.486750 * LOCATION: Mkuze River EVENT LABEL: MK20-2 * LATITUDE: -27.725417 * LONGITUDE: 32.486750 * LOCATION: Mkuze River EVENT LABEL: MK21-1 * LATITUDE: -27.745967 * LONGITUDE: 32.502133 * LOCATION: Mkuze River TRACES fieldtrip to the Mkuze (MK) River catchment in November/December 2018 EVENT LABEL: MK21-4 * LATITUDE: -27.745967 * LONGITUDE: 32.502133 * LOCATION: Mkuze River EVENT LABEL: MK21-5 * LATITUDE: -27.745967 * LONGITUDE: 32.502133 * LOCATION: Mkuze River EVENT LABEL: MK22-1 * LATITUDE: -27.745967 * LONGITUDE: 32.502133 * LOCATION: Mkuze River TRACES fieldtrip to the Mkuze (MK) River catchment in November/December 2018 EVENT LABEL: MK23-1 * LATITUDE: -27.852617 * LONGITUDE: 32.474917 * LOCATION: Mkuze River TRACES fieldtrip to the Mkuze (MK) River catchment in November/December 2018 EVENT LABEL: MK24-4 * LATITUDE: -27.856083 * LONGITUDE: 32.479333 * LOCATION: Mkuze River TRACES fieldtrip to the Mkuze (MK) River catchment in November/December 2018 EVENT LABEL: MK24-5 * LATITUDE: -27.856083 * LONGITUDE: 32.479333 * LOCATION: Mkuze River EVENT LABEL: MK25-1 * LATITUDE: -27.894800 * LONGITUDE: 32.483217 * LOCATION: Mkuze River TRACES fieldtrip to the Mkuze (MK) River catchment in November/December 2018 EVENT LABEL: MK26-1 * LATITUDE: -27.899483 * LONGITUDE: 32.483433 * LOCATION: Mkuze River TRACES fieldtrip to the Mkuze (MK) River catchment in November/December 2018 EVENT LABEL: MK27-1 * LATITUDE: -27.904950 * LONGITUDE: 32.484850 * LOCATION: Mkuze River TRACES fieldtrip to the Mkuze (MK) River catchment in November/December 2018 EVENT LABEL: MK28-1 * LATITUDE: -27.908267 * LONGITUDE: 32.485867 * LOCATION: Mkuze River TRACES fieldtrip to the Mkuze (MK) River catchment in November/December 2018 EVENT LABEL: MK29-1 * LATITUDE: -27.913017 * LONGITUDE: 32.486017 * LOCATION: Mkuze River TRACES fieldtrip to the Mkuze (MK) River catchment in November/December 2018 EVENT LABEL: MK30-1 * LATITUDE: -27.917767 * LONGITUDE: 32.486733 * LOCATION: Mkuze River TRACES fieldtrip to the Mkuze (MK) River catchment in November/December 2018 EVENT LABEL: MK31-1 * LATITUDE: -27.922533 * LONGITUDE: 32.486933 * LOCATION: Mkuze River TRACES fieldtrip to the Mkuze (MK) River catchment in November/December 2018 EVENT LABEL: MK32-1 * LATITUDE: -27.926750 * LONGITUDE: 32.489367 * LOCATION: Mkuze River TRACES fieldtrip to the Mkuze (MK) River catchment in November/December 2018 EVENT LABEL: MK33-1 * LATITUDE: -27.931283 * LONGITUDE: 32.491200 * LOCATION: Mkuze River TRACES fieldtrip to the Mkuze (MK) River catchment in November/December 2018 EVENT LABEL: MK34-1 * LATITUDE: -27.936083 * LONGITUDE: 32.493017 * LOCATION: Mkuze River TRACES fieldtrip to the Mkuze (MK) River catchment in November/December 2018 EVENT LABEL: MK35-1 * LATITUDE: -27.940267 * LONGITUDE: 32.495217 * LOCATION: Mkuze River TRACES fieldtrip to the Mkuze (MK) River catchment in November/December 2018 EVENT LABEL: MK36-1 * LATITUDE: -27.945700 * LONGITUDE: 32.497000 * LOCATION: Mkuze River TRACES fieldtrip to the Mkuze (MK) River catchment in November/December 2018 EVENT LABEL: MK37-2 * LATITUDE: -27.599083 * LONGITUDE: 32.561083 * LOCATION: Mkuze River Related to 2022-01-01 publication https://doi.org/10.5194/bg-19-2881-2022 Gensel, Julia

julchen3988@hotmail.de

https://orcid.org/0000-0002-8948-2231 information author Humphries, Marc

Marc.Humphries@wits.ac.za

https://orcid.org/0000-0002-4047-1451 information author Zabel, Matthias

mzabel@uni-bremen.de

https://orcid.org/0000-0003-4681-1821 information author Sebag, David

davidsebag.ird@gmail.com

https://orcid.org/0000-0002-6446-6921 information author Hahn, Annette

hahnette@hotmail.com

https://orcid.org/0000-0002-3647-473X information author Schefuß, Enno

eschefuss@marum.de

https://orcid.org/0000-0002-5960-930X information author documentDigital Biogeosciences 19(11) 2881-2902