de.pangaea.dataset990132 und dataset PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact 2026-09-04T12:21:25Z https://doi.pangaea.de/10.1594/PANGAEA.990132 <gco:CharacterString>Downcore sediment biogeochemical and physical data from Lake Alchichica (Puebla, Mexico)</gco:CharacterString> 2026-06-05T13:55:13 publication https://doi.org/10.1594/PANGAEA.990132 Rantala, Marttiina V
marttiina.rantala@gmail.com
https://orcid.org/0000-0002-3231-5926 information author Israde-Alcántara, Isabel
isabelisrade@gmail.com
author Safaierad, Reza
safaierad.reza@gmail.com
https://orcid.org/0000-0002-8295-2560 information author Mattielli, Nadine
Nadine.Mattielli@ulb.be
https://orcid.org/0000-0002-7170-1520 information author Tylmann, Wojciech
wojciech.tylmann@ug.edu.pl
https://orcid.org/0000-0003-1749-5882 information author Smol, John P
smolj@queensu.ca
https://orcid.org/0000-0002-2499-6696 information author Grooms, Christopher
groomsc@queensu.ca
author Lepoint, Gilles
g.lepoint@uliege.be
https://orcid.org/0000-0003-4375-0357 information author Francus, Pierre
pierre.francus@inrs.ca
https://orcid.org/0000-0001-5465-1966 information author Metcalfe, Sarah author Etmański, Paweł author Fagel, Nathalie
nathalie.fagel@uliege.be
https://orcid.org/0000-0002-8231-8295 information author PANGAEA
info@pangaea.de
https://www.pangaea.de/ information publisher tableDigital Multiproxy biogeochemical and physical data of sediment core LAc22-1 retrieved from Lake Alchichica in April 2022. Measurements (elemental and isotope biogeochemistry, visible range spectroscopy, loss on ignition) were performed on discrete sediment samples and extend back to the late 1800s. Ages were estimated using Pb-210 dating and Bayesian age-depth modeling. completed Rantala, Marttiina V
marttiina.rantala@gmail.com
https://orcid.org/0000-0002-3231-5926 information principalInvestigator Anthropocene biogeochemistry Carbon accumulation crater lake Lake sediment Mexico Primary production Tropical theme <gco:CharacterString>PANGAEA Keyword List</gco:CharacterString> 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 -97.403889 -97.403889 19.410556 19.410556 2022-04-12T00:00:00 2022-04-12T00:00:00 0.0025 0.1425 DEPTH, sediment/rock physicalMeasurement Middle depth of sediment section. m m Depth, sediment/rock, top/minimum physicalMeasurement Top depth of sediment section. m m Depth, sediment/rock, bottom/maximum physicalMeasurement Bottom depth of sediment section. m m Age physicalMeasurement Bayesian age model, according to Aquino-López et al. (2018); Mean age for middle depth of sediment section, Plum version 0.5.1 by Aquino-López et al. (2018 , doi:10.1007/s13253-018-0328-7). a AD/CE a AD/CE AGE physicalMeasurement ka BP ka BP Organic matter physicalMeasurement Determined by loss on ignition at 550 °C, according to Heiri et al. (2010) % % Carbonates physicalMeasurement Determined by loss on ignition at 950 °C, according to Heiri et al. (2010) % % Density, dry bulk physicalMeasurement Calculated, see Comment; Mass of dry sediment divided by wet sediment volume (1 cm³). g/cm**3 g/cm**3 Sedimentation rate per year physicalMeasurement Calculated, see Comment; Sediment section thickness divided by elapsed time. cm/a cm/a Accumulation rate, mass, per year physicalMeasurement Calculated, see Comment; Dry bulk density multiplied by sediment accumulation rate. g/cm**2/a g/cm**2/a Accumulation rate, mass, carbon, organic, total physicalMeasurement Calculated, see Comment; Sediment organic carbon content multiplied by mass accumulation rate. g/m**2/a g/m**2/a Accumulation rate, mass, carbon, organic, total physicalMeasurement Calculated, see Comment; Sediment organic carbon content multiplied by mass accumulation rate. Values corrected for sediment focusing based on measured unsupported 210Pb flux in the sediment core and atmospheric 210Pb flux estimated based on mean annual precipitation and Zhang et al. (2021, doi:10.5194/essd-13-2963-2021) equations for latitudinal bands 10-20°N and 20-30°N. g/m**2/a g/m**2/a Carbon, organic, total physicalMeasurement Elemental analyzer (EA), Elementar, vario MICRO cube % % Nitrogen, total physicalMeasurement Elemental analyzer (EA), Elementar, vario MICRO cube % % δ13C physicalMeasurement Isotope ratio mass spectrometer (IRMS), Elementar, isoprime precisION; Values from acidified samples. ‰ ‰ δ15N physicalMeasurement Isotope ratio mass spectrometer (IRMS), Elementar, isoprime precisION; Values from nonacidified samples. ‰ ‰ Carbon/Nitrogen ratio physicalMeasurement Elemental analyzer (EA), Elementar, vario MICRO cube; Calculated based on values from acidified samples for both elements, mass ratio multiplied by 1.167. mol/mol mol/mol Chlorophyll a, per dry mass physicalMeasurement Visible-near infrared spectroscopy, Foss NIRsystems, Model 6500 Rapid Content Analyzer mg/g mg/g Chlorophyll a, z-score thematicClassification Visible-near infrared spectroscopy, Foss NIRsystems, Model 6500 Rapid Content Analyzer; Initial values z-score transformed. text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.990132?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: LAc22-1 * LATITUDE: 19.410556 * LONGITUDE: -97.403889 * DATE/TIME: 2022-04-12T00:00:00 * ELEVATION: 2322.0 m * LOCATION: Lake Alchichica, Puebla, Mexico * METHOD/DEVICE: Sediment corer, UWITEC 2022-04-12T00:00:00 Supplement to <gco:CharacterString>Increasing lake primary production and organic carbon sequestration in tropical Mexican lakes during the past century</gco:CharacterString> 2026-01-01 publication https://doi.org/10.1016/j.catena.2026.110448 Rantala, Marttiina V
marttiina.rantala@gmail.com
https://orcid.org/0000-0002-3231-5926 information author Israde-Alcántara, Isabel
isabelisrade@gmail.com
author Safaierad, Reza
safaierad.reza@gmail.com
https://orcid.org/0000-0002-8295-2560 information author Mattielli, Nadine
Nadine.Mattielli@ulb.be
https://orcid.org/0000-0002-7170-1520 information author Tylmann, Wojciech
wojciech.tylmann@ug.edu.pl
https://orcid.org/0000-0003-1749-5882 information author Smol, John P
smolj@queensu.ca
https://orcid.org/0000-0002-2499-6696 information author Grooms, Christopher
groomsc@queensu.ca
author Lepoint, Gilles
g.lepoint@uliege.be
https://orcid.org/0000-0003-4375-0357 information author Francus, Pierre
pierre.francus@inrs.ca
https://orcid.org/0000-0001-5465-1966 information author Metcalfe, Sarah author Etmański, Paweł author Fagel, Nathalie
nathalie.fagel@uliege.be
https://orcid.org/0000-0002-8231-8295 information author documentDigital CATENA 273 110448 References <gco:CharacterString>Bayesian Analysis of 210Pb Dating</gco:CharacterString> 2018-01-01 publication https://doi.org/10.1007/s13253-018-0328-7 Aquino-Lopez, Marco A https://orcid.org/0000-0002-5076-7205 information author Blaauw, Maarten
maarten.blaauw@qub.ac.uk
https://orcid.org/0000-0002-5680-1515 information author Christen, Andrés https://orcid.org/0000-0002-5795-4345 information author Sanderson, Nicole K https://orcid.org/0000-0002-2225-8446 information author documentDigital Journal of Agricultural Biological and Environmental Statistics 23(3) 317-333 References <gco:CharacterString>Loss on ignition as a method for estimating organic and carbonate content in sediments: reproducibility and comparability of results</gco:CharacterString> 2001-01-01 publication https://doi.org/10.1023/A:1008119611481 Heiri, Oliver
oliver.heiri@unibas.ch
https://orcid.org/0000-0002-3957-5835 information author Lotter, André F
a.f.lotter@uu.nl
http://www.bio.uu.nl/~palaeo/people/Andy/index.html information author Lemcke, G author documentDigital Journal of Paleolimnology 25(1) 101-110 References <gco:CharacterString>A global dataset of atmospheric 7Be and 210Pb measurements: annual air concentration and depositional flux</gco:CharacterString> 2021-01-01 publication https://doi.org/10.5194/essd-13-2963-2021 Zhang, Fule https://orcid.org/0000-0001-8341-9971 information author Wang, Jinlong author Baskaran, Mark https://orcid.org/0000-0002-2218-4328 information author Zhong, Qiangqiang author Wang, Yali author Paatero, Jussi https://orcid.org/0000-0002-3262-1501 information author Du, Jinzhou
jzdu@sklec.ecnu.edu.cn
author documentDigital Earth System Science Data 13(6) 2963-2994