/* DATA DESCRIPTION: Citation: Rantala, Marttiina V; Israde-Alcántara, Isabel; Safaierad, Reza; Mattielli, Nadine; Tylmann, Wojciech; Smol, John P; Grooms, Christopher; Lepoint, Gilles; Francus, Pierre; Metcalfe, Sarah; Etmański, Paweł; Fagel, Nathalie (2026): Lead-210 (Pb-210) and Cesium-137 (Cs-137) dating of a sediment core from Lake Teremendo (Michoacán, Mexico) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.990158 Abstract: Lead-210 (Pb-210) and Cesium-137 (Cs-137) dating of sediment core LTe22-1 retrieved from Lake Teremendo in April 2022. Keyword(s): Anthropocene; biogeochemistry; Carbon accumulation; crater lake; Lake sediment; Mexico; Primary production; Tropical Supplement to: Rantala, Marttiina V; Israde-Alcántara, Isabel; Safaierad, Reza; Mattielli, Nadine; Tylmann, Wojciech; Smol, John P; Grooms, Christopher; Lepoint, Gilles; Francus, Pierre; Metcalfe, Sarah; Etmański, Paweł; Fagel, Nathalie (2026): Increasing lake primary production and organic carbon sequestration in tropical Mexican lakes during the past century. CATENA, 273, 110448, https://doi.org/10.1016/j.catena.2026.110448 Funding: Fonds de la Recherche Scientifique (FNRS), grant/award no. PDR T.0079.21: Holocene Mexican Crater Lakes and Climate (HolMeCl) Coverage: LATITUDE: 19.806306 * LONGITUDE: -101.455083 DATE/TIME START: 2022-04-13T00:00:00 * DATE/TIME END: 2022-04-13T00:00:00 MINIMUM DEPTH, sediment/rock: 0.0025 m * MAXIMUM DEPTH, sediment/rock: 0.2925 m Event(s): LTe22-1 * LATITUDE: 19.806306 * LONGITUDE: -101.455083 * DATE/TIME: 2022-04-13T00:00:00 * ELEVATION: 2060.0 m * LOCATION: Lake Teremendo, Michoacán, Mexico * METHOD/DEVICE: Sediment corer, UWITEC Parameter(s): DEPTH, sediment/rock [m] (Depth sed) * GEOCODE * PI: Rantala, Marttiina V (https://orcid.org/0000-0002-3231-5926, marttiina.rantala@gmail.com) * COMMENT: Middle depth of sediment section. Depth, sediment/rock, top/minimum [m] (Depth sed top) * PI: Rantala, Marttiina V (https://orcid.org/0000-0002-3231-5926, marttiina.rantala@gmail.com) * COMMENT: Top depth of sediment section. Depth, sediment/rock, bottom/maximum [m] (Depth sed bot) * PI: Rantala, Marttiina V (https://orcid.org/0000-0002-3231-5926, marttiina.rantala@gmail.com) * COMMENT: Bottom depth of sediment section. Lead-210 [Bq/kg] (210Pb) * PI: Rantala, Marttiina V (https://orcid.org/0000-0002-3231-5926, marttiina.rantala@gmail.com) * METHOD/DEVICE: Alpha spectrometry Lead-210, standard deviation [±] (210Pb std dev) * PI: Rantala, Marttiina V (https://orcid.org/0000-0002-3231-5926, marttiina.rantala@gmail.com) * METHOD/DEVICE: Alpha spectrometry Lead-210, supported [Bq/kg] (210Pb sup) * PI: Rantala, Marttiina V (https://orcid.org/0000-0002-3231-5926, marttiina.rantala@gmail.com) * METHOD/DEVICE: Alpha spectrometry * COMMENT: Estimated from the lowermost four samples of the profile where Pb-210 activity approaches a constant value. Lead-210, supported, standard deviation [±] (210Pb sup std dev) * PI: Rantala, Marttiina V (https://orcid.org/0000-0002-3231-5926, marttiina.rantala@gmail.com) * METHOD/DEVICE: Alpha spectrometry Lead-210, unsupported [Bq/kg] (210Pb unsup) * PI: Rantala, Marttiina V (https://orcid.org/0000-0002-3231-5926, marttiina.rantala@gmail.com) * METHOD/DEVICE: Alpha spectrometry Lead-210, unsupported, standard deviation [±] (210Pb unsup std dev) * PI: Rantala, Marttiina V (https://orcid.org/0000-0002-3231-5926, marttiina.rantala@gmail.com) * METHOD/DEVICE: Alpha spectrometry Caesium-137 [Bq/kg] (137Cs) * PI: Rantala, Marttiina V (https://orcid.org/0000-0002-3231-5926, marttiina.rantala@gmail.com) * METHOD/DEVICE: Gamma spectrometry Caesium-137, standard deviation [±] (137Cs std dev) * PI: Rantala, Marttiina V (https://orcid.org/0000-0002-3231-5926, marttiina.rantala@gmail.com) * METHOD/DEVICE: Gamma spectrometry License: Creative Commons Attribution 4.0 International (CC-BY-4.0) (URI: https://creativecommons.org/licenses/by/4.0/) Status: Curation Level: Enhanced curation (URI: https://wiki.pangaea.de/wiki/Curation_levels) Size: 250 data points */ Depth sed [m] Depth sed top [m] Depth sed bot [m] 210Pb [Bq/kg] 210Pb std dev [±] 210Pb sup [Bq/kg] 210Pb sup std dev [±] 210Pb unsup [Bq/kg] 210Pb unsup std dev [±] 137Cs [Bq/kg] 137Cs std dev [±] 0.0025 0.00 0.005 155.9 7.3 19.1 1.3 136.8 7.4 0.0125 0.01 0.015 133.1 6.3 19.1 1.3 114.0 6.4 0.0225 0.02 0.025 141.8 6.2 19.1 1.3 122.7 6.3 0.0325 0.03 0.035 174.1 7.6 19.1 1.3 155.0 7.7 0.0425 0.04 0.045 193.1 8.1 19.1 1.3 174.0 8.2 0.0525 0.05 0.055 196.0 8.4 19.1 1.3 176.9 8.5 0.0625 0.06 0.065 177.1 7.6 19.1 1.3 158.0 7.7 0.0725 0.07 0.075 120.2 5.5 19.1 1.3 101.1 5.6 0.0825 0.08 0.085 94.0 5.1 19.1 1.3 74.9 5.3 7.3 2.4 0.0925 0.09 0.095 114.0 5.8 19.1 1.3 94.9 5.9 0.1025 0.10 0.105 95.7 4.8 19.1 1.3 76.6 4.9 7.6 2.4 0.1125 0.11 0.115 99.8 5.1 19.1 1.3 80.7 5.2 9.5 2.2 0.1225 0.12 0.125 76.5 4.4 19.1 1.3 57.4 4.6 11.9 2.6 0.1325 0.13 0.135 85.3 4.7 19.1 1.3 66.2 4.9 15.6 2.8 0.1425 0.14 0.145 51.0 3.4 19.1 1.3 31.9 3.6 10.2 2.3 0.1525 0.15 0.155 33.7 2.8 19.1 1.3 14.6 3.1 9.5 2.2 0.1625 0.16 0.165 29.2 2.6 19.1 1.3 10.1 2.9 5.0 2.0 0.1725 0.17 0.175 37.6 2.8 19.1 1.3 18.5 3.1 1.9 1.9 0.1825 0.18 0.185 29.8 2.5 19.1 1.3 10.7 2.9 0.1925 0.19 0.195 26.8 2.2 19.1 1.3 7.7 2.5 0.2025 0.20 0.205 23.2 2.2 19.1 1.3 4.1 2.6 0.2125 0.21 0.215 27.8 2.5 19.1 1.3 8.7 2.8 0.2225 0.22 0.225 26.3 2.3 19.1 1.3 7.2 2.7 0.2325 0.23 0.235 33.7 2.7 19.1 1.3 14.6 3.0 0.2425 0.24 0.245 23.5 2.0 19.1 1.3 4.4 2.4 0.2525 0.25 0.255 26.9 2.3 19.1 1.3 7.8 2.6 0.2625 0.26 0.265 19.7 2.0 19.1 1.3 0.2725 0.27 0.275 19.9 2.0 19.1 1.3 0.2825 0.28 0.285 20.1 2.1 19.1 1.3 0.2925 0.29 0.295 16.8 1.8 19.1 1.3