GDGT and n-alkane isotopic compositions in suspended sediments samples of the Amazon River Basin
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| Autores principales: | , , , , , |
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
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PANGAEA
2022
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| _version_ | 1867170477365002240 |
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| author | Bertassoli Junior, Dailson José Häggi, Christoph Chiessi, Cristiano Mazur Schefuß, Enno Hefter, Jens Akabane, Thomas K |
| author_facet | Bertassoli Junior, Dailson José Häggi, Christoph Chiessi, Cristiano Mazur Schefuß, Enno Hefter, Jens Akabane, Thomas K |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Lipid biomarkers have been extensively used to reconstruct paleoenvironmental conditions. However, the entrainment of local compounds from source to sink may complicate interpretations. Here we present: (i) glycerol dialkyl glycerol tetraether (GDGT) distributions from the Amazon River and its main tributaries (i.e. Japurá, Içá, Juruá, Jutaí, Madeira, Solimões, Negro, Tapajós and Purus); and (ii) GDGT distributions and n-alkane isotopic compositions of soils and sediments from the Xingu River, a large clearwater River in eastern Amazonia. Our study aimed at understanding the processes and patterns related to distinct GDGT distributions and n-alkane isotopic signatures across lowland Amazonia. Suspended sediment samples from the Amazon Basin were obtained during the low-water season of 2015. Soil and suspended sediment samples from the Xingu Basin were obtained during the low- and high-water seasons of 2011, 2012, 2016 and 2017. Riverbed material was obtained using a Van Veen bottom sampler. Suspended material was concentrated using a Merck Millipore Ultrafiltration system equipped with Pellicon 2 Ultrafiltration cassettes (0.45 μm, 0.5 m2) after pumping up to 100 L of water from 60% of the total water column. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_945184 |
| institution | PANGAEA |
| language | en |
| publishDate | 2022 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | GDGT and n-alkane isotopic compositions in suspended sediments samples of the Amazon River Basin Bertassoli Junior, Dailson José Häggi, Christoph Chiessi, Cristiano Mazur Schefuß, Enno Hefter, Jens Akabane, Thomas K Amazon; Amazon River; Biomarkers; BIT index; Carbon isotopes; Compound-specific Isotopes; GDGTs; hydrogen and carbon isotopes; Hydrogen isotopes; Hydrogen stable isotopes; Leaf wax; n-alkane; n-alkanes; Suspended particulate matter; Xingu River Lipid biomarkers have been extensively used to reconstruct paleoenvironmental conditions. However, the entrainment of local compounds from source to sink may complicate interpretations. Here we present: (i) glycerol dialkyl glycerol tetraether (GDGT) distributions from the Amazon River and its main tributaries (i.e. Japurá, Içá, Juruá, Jutaí, Madeira, Solimões, Negro, Tapajós and Purus); and (ii) GDGT distributions and n-alkane isotopic compositions of soils and sediments from the Xingu River, a large clearwater River in eastern Amazonia. Our study aimed at understanding the processes and patterns related to distinct GDGT distributions and n-alkane isotopic signatures across lowland Amazonia. Suspended sediment samples from the Amazon Basin were obtained during the low-water season of 2015. Soil and suspended sediment samples from the Xingu Basin were obtained during the low- and high-water seasons of 2011, 2012, 2016 and 2017. Riverbed material was obtained using a Van Veen bottom sampler. Suspended material was concentrated using a Merck Millipore Ultrafiltration system equipped with Pellicon 2 Ultrafiltration cassettes (0.45 μm, 0.5 m2) after pumping up to 100 L of water from 60% of the total water column. |
| title | GDGT and n-alkane isotopic compositions in suspended sediments samples of the Amazon River Basin |
| topic | Amazon; Amazon River; Biomarkers; BIT index; Carbon isotopes; Compound-specific Isotopes; GDGTs; hydrogen and carbon isotopes; Hydrogen isotopes; Hydrogen stable isotopes; Leaf wax; n-alkane; n-alkanes; Suspended particulate matter; Xingu River |
| url | https://doi.org/10.1594/PANGAEA.945184 |