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Main Authors: Rantala, Marttiina V, Israde-Alcántara, Isabel, Safaierad, Reza, Tylmann, Wojciech, Lepoint, Gilles, Francus, Pierre, Smol, John P, Meyer-Jacob, Carsten, Grooms, Christopher, Mattielli, Nadine, Metcalfe, Sarah, Etmański, Paweł, Fagel, Nathalie
Format: Dataset Open Access
Language:en
Published: PANGAEA 2025
Subjects:
Accumulation rate, carbon, organic; Accumulation rate, mass, per year; Achnanthidium minutissimum sensu lato; Age; AGE; Age, Bayesian based model Plum on Pb-210 and C-14 data; Amphora copulata; Aulacoseira ambigua; Aulacoseira granulata; biogeochemistry; Calculated based on dry bulk density and sediment accumulation rate; Calculated based on organic carbon content and mass accumulation rate; Calculated based on sediment section thickness and elapsed time; Carbon, organic, total; Carbon, organic, total, z-score; Carbon/Nitrogen ratio; Carbonates; Carbon cycle; Chlorophyll a, z-score; Cocconeis neothumensis; Cocconeis placentula sensu lato; Density, dry bulk; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Determined based on water content of volumetric samples; Determined by loss on ignition at 550 °C, after Heiri et al. (2001); Determined by loss on ignition at 950°C, after Heiri et al. (2001); Diatom; Diatoms, fragilarioid taxa; Elemental analyzer (EA), Elementar, vario MICRO cube; Epithemia adnata; Epithemia musculus; Epithemia sorex; Fragilaria radians; Gogorevia exilis; Gomphonema affine; Gomphonema sp.; Halamphora veneta; Hippodonta hungarica; Hippodonta sp.; Isotope ratio mass spectrometer, Elementar, IsoPrime; isotopes; Lake Santa Maria del Oro, Nayarit, Mexico; Lake sediment; Late Holocene; Light microscope, Zeiss [1000x magnification]; LSMo22-1; Mexico; Navicula cryptocephala; Navicula lundii; Navicula subrhynchocephala; Nitrogen, total; Nitzschia amphibia; Nitzschia amphibia forma frauenfeldii; Nitzschia fonticola; Nitzschia paleacea; Nitzschia sp.; Organic matter; Placoneis anglophila; Planothidium delicatulum; Primary production; Rhoicosphenia californica; Rhopalodia operculata; Sedimentation rate per year; Sediment corer, UWITEC; Sellaphora nigri; Sellaphora saugerresii; Sellaphora sp.; Stephanocyclus meneghinianus; Tropical; Ulnaria ulna; Visible-near infrared spectroscopy, Foss NIRsystems, Model 6500 Rapid Content Analyzer; δ13C; δ15N
Online Access:https://doi.org/10.1594/PANGAEA.972745
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Table of Contents:
  • This dataset comprises multiproxy biogeochemical data and diatom assemblage data for a sediment sequence (LSm-22-1) from lake Santa Maria del Oro (Nayarit, Mexico). The data were used to explore connections between lake carbon cycling and related ecosystem processes under natural and anthropogenic environmental change over the past four centuries. The sediment core (97 cm in length) was retrieved with a Uwitec corer near the middle of the lake basin (water depth >50 m) in April 2022. After initial core scanning, the sediment core was sectioned at 5-mm to 1-cm intervals. The data are provided for these discrete sediment sections from 0 cm down to the depth of 34 cm, covering a time period from 2022 to around 1650. Age estimates for each sediment section have been calculated based on radiolead (Pb-210) dating of the surface sediment sections and three radiocarbon (C-14) measurements. Diatom data include taxa present with at least 0.5% relative abundance in any sample.

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