δ Deuterium leaf wax isotopes from sediment core of Lake Alchichica in Mexico
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| Natura: | Dataset Open Access |
| Lingua: | en |
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PANGAEA
2026
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| _version_ | 1867170135645618176 |
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| author | Safaierad, Reza Israde-Alcántara, Isabel Rantala, Marttiina V Domínguez-Vázquez, Gabriela Schefuß, Enno Tylmann, Wojciech Francus, Pierre Mattielli, Nadine Metcalfe, Sarah Fagel, Nathalie |
| author_facet | Safaierad, Reza Israde-Alcántara, Isabel Rantala, Marttiina V Domínguez-Vázquez, Gabriela Schefuß, Enno Tylmann, Wojciech Francus, Pierre Mattielli, Nadine Metcalfe, Sarah Fagel, Nathalie |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | The isotope analyses were performed on subsamples from a 57-cm-long sediment core retrieved from Lake Alchichica (19° 24' 38 N, 97° 24' 14 W, 2322 masl) at a water depth of ~ 60 m using a Uwitec® coring device equipped with a 9-cm coring tube. n-alkanes were extracted from 20 dried samples (1.3–2.8 g) using DCM:MeOH (9:1) in a DIONEX ASE-200 at 100°C and 1000 psi for 5 minutes, repeated thrice, with squalane as an internal standard. Lipid extracts were concentrated under N₂, treated with activated copper to remove sulfur, and saponified with 6% KOH in MeOH at 80°C for 2 hours. Hydrocarbons, ketones, and alcohols were extracted with hexane, and non-polar hydrocarbons were isolated using silica gel and silver nitrate-silica columns. Saturated fractions were analyzed by GC/FID at MARUM, University of Bremen, with retention time comparison for compound identification and <5% quantification precision. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_982935 |
| institution | PANGAEA |
| language | en |
| publishDate | 2026 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | δ Deuterium leaf wax isotopes from sediment core of Lake Alchichica in Mexico Safaierad, Reza Israde-Alcántara, Isabel Rantala, Marttiina V Domínguez-Vázquez, Gabriela Schefuß, Enno Tylmann, Wojciech Francus, Pierre Mattielli, Nadine Metcalfe, Sarah Fagel, Nathalie AGE; Age, Bayesian based model Plum on Pb-210 and C-14 data; carbon isotope; DEPTH, sediment/rock; Deuterium Isotopes; Gas chromatography - Flame Ionization Detection (GC-FID); Lake_Alchichica; leaf waxes; Mexico; oxygen isotope; Pollen; Sediment core; Sediment corer, UWITEC; XRD; XRF core scanner data; δ Deuterium, wax; δ Deuterium, wax, standard deviation The isotope analyses were performed on subsamples from a 57-cm-long sediment core retrieved from Lake Alchichica (19° 24' 38 N, 97° 24' 14 W, 2322 masl) at a water depth of ~ 60 m using a Uwitec® coring device equipped with a 9-cm coring tube. n-alkanes were extracted from 20 dried samples (1.3–2.8 g) using DCM:MeOH (9:1) in a DIONEX ASE-200 at 100°C and 1000 psi for 5 minutes, repeated thrice, with squalane as an internal standard. Lipid extracts were concentrated under N₂, treated with activated copper to remove sulfur, and saponified with 6% KOH in MeOH at 80°C for 2 hours. Hydrocarbons, ketones, and alcohols were extracted with hexane, and non-polar hydrocarbons were isolated using silica gel and silver nitrate-silica columns. Saturated fractions were analyzed by GC/FID at MARUM, University of Bremen, with retention time comparison for compound identification and <5% quantification precision. |
| title | δ Deuterium leaf wax isotopes from sediment core of Lake Alchichica in Mexico |
| topic | AGE; Age, Bayesian based model Plum on Pb-210 and C-14 data; carbon isotope; DEPTH, sediment/rock; Deuterium Isotopes; Gas chromatography - Flame Ionization Detection (GC-FID); Lake_Alchichica; leaf waxes; Mexico; oxygen isotope; Pollen; Sediment core; Sediment corer, UWITEC; XRD; XRF core scanner data; δ Deuterium, wax; δ Deuterium, wax, standard deviation |
| url | https://doi.org/10.1594/PANGAEA.982935 |