δ18O and δ13C from sediment core of Lake Alchichica in Mexico
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
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PANGAEA
2026
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| _version_ | 1867171052354797568 |
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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 proxy data are measured from a 57-cm long sediment core collected 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. The core was split lengthwise, analyzed using XRF core scanning, and subsampled. A Bayesian chronology was created using 210Pb data and three 14C dates. For stable isotope geochemistry (δ¹⁸O and δ¹³C) of bulk sediments, samples collected at 1 cm intervals were analyzed at MARUM, University of Bremen, using a Finnigan MAT252 mass spectrometer with a Kiel III carbonate preparation device. Results are reported in delta notation (δ) relative to VPDB. Calibration involved a house standard (Solnhofen limestone) referenced to NBS 19 calcite, with standard deviations of 0.06‰ for both δ¹³C and δ¹⁸O. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_982934 |
| institution | PANGAEA |
| language | en |
| publishDate | 2026 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | δ18O and δ13C 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; Lake_Alchichica; leaf waxes; Mass spectrometer, Finnigan, MAT 252; Mexico; oxygen isotope; Pollen; Sediment core; Sediment corer, UWITEC; XRD; XRF core scanner data; δ13C; δ13C, standard deviation; δ18O; δ18O, standard deviation The proxy data are measured from a 57-cm long sediment core collected 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. The core was split lengthwise, analyzed using XRF core scanning, and subsampled. A Bayesian chronology was created using 210Pb data and three 14C dates. For stable isotope geochemistry (δ¹⁸O and δ¹³C) of bulk sediments, samples collected at 1 cm intervals were analyzed at MARUM, University of Bremen, using a Finnigan MAT252 mass spectrometer with a Kiel III carbonate preparation device. Results are reported in delta notation (δ) relative to VPDB. Calibration involved a house standard (Solnhofen limestone) referenced to NBS 19 calcite, with standard deviations of 0.06‰ for both δ¹³C and δ¹⁸O. |
| title | δ18O and δ13C 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; Lake_Alchichica; leaf waxes; Mass spectrometer, Finnigan, MAT 252; Mexico; oxygen isotope; Pollen; Sediment core; Sediment corer, UWITEC; XRD; XRF core scanner data; δ13C; δ13C, standard deviation; δ18O; δ18O, standard deviation |
| url | https://doi.org/10.1594/PANGAEA.982934 |