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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): Raw X-ray fluorescence core scanning (XRF-CS) data of a sediment core from Lake Los Espinos (Michoacán, Mexico) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.990166

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Published: 2026-06-05DOI registered: 2026-07-04

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Abstract:
Raw X-ray fluorescence core scanning (XRF-CS) data of sediment core LLEs22-3 retrieved from Lake Los Espinos in April 2022. Scans were performed with a 500 µm step size and 10 seconds dwell time. The analysis yielded the ratio of Compton (incoherent) to Rayleigh (coherent) scattering (Inc/coh) that can be used as an indicator of sediment organic matter content. The measurements extend back to the late 1800s. Ages were estimated using Pb-210 dating and Bayesian age-depth modeling.
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
References:
Aquino-Lopez, Marco A; Blaauw, Maarten; Christen, Andrés; Sanderson, Nicole K (2018): Bayesian Analysis of 210Pb Dating. Journal of Agricultural Biological and Environmental Statistics, 23(3), 317-333, https://doi.org/10.1007/s13253-018-0328-7
Funding:
Fonds de la Recherche Scientifique (FNRS), grant/award no. PDR T.0079.21: Holocene Mexican Crater Lakes and Climate (HolMeCl)
Coverage:
Latitude: 19.907028 * Longitude: -101.768111
Date/Time Start: 2022-04-02T00:00:00 * Date/Time End: 2022-04-02T00:00:00
Minimum DEPTH, sediment/rock: 0.0000 m * Maximum DEPTH, sediment/rock: 0.1330 m
Event(s):
LLEs22-3 * Latitude: 19.907028 * Longitude: -101.768111 * Date/Time: 2022-04-02T00:00:00 * Elevation: 1985.0 m * Location: Lake Los Espinos, Michoacán, Mexico * Method/Device: Sediment corer, UWITEC
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
DEPTH, sediment/rockDepth sedmRantala, Marttiina VGeocode
AgeAgea AD/CERantala, Marttiina VBayesian age model, according to Aquino-López et al. (2018)Plum version 0.5.1 by Aquino-López et al. (2018, doi:10.1007/s13253-018-0328-7).
AGEAgeka BPRantala, Marttiina VGeocode
CalciumCacpsRantala, Marttiina VX-ray fluorescence core scanner (XRF), Cox Analytical Systems, Itrax
TitaniumTicpsRantala, Marttiina VX-ray fluorescence core scanner (XRF), Cox Analytical Systems, Itrax
ChromiumCrcpsRantala, Marttiina VX-ray fluorescence core scanner (XRF), Cox Analytical Systems, Itrax
ManganeseMncpsRantala, Marttiina VX-ray fluorescence core scanner (XRF), Cox Analytical Systems, Itrax
IronFecpsRantala, Marttiina VX-ray fluorescence core scanner (XRF), Cox Analytical Systems, Itrax
NickelNicpsRantala, Marttiina VX-ray fluorescence core scanner (XRF), Cox Analytical Systems, Itrax
10 CopperCucpsRantala, Marttiina VX-ray fluorescence core scanner (XRF), Cox Analytical Systems, Itrax
11 GermaniumGecpsRantala, Marttiina VX-ray fluorescence core scanner (XRF), Cox Analytical Systems, Itrax
12 StrontiumSrcpsRantala, Marttiina VX-ray fluorescence core scanner (XRF), Cox Analytical Systems, Itrax
13 TantalumTacpsRantala, Marttiina VX-ray fluorescence core scanner (XRF), Cox Analytical Systems, Itrax
14 Scattering ratio, incoherent/coherenticoh/coh scatRantala, Marttiina VX-ray fluorescence core scanner (XRF), Cox Analytical Systems, Itrax
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
3204 data points

Data

Download dataset as tab-delimited text — use the following character encoding:


Depth sed [m]

Age [a AD/CE]

Age [ka BP]

Ca [cps]

Ti [cps]

Cr [cps]

Mn [cps]

Fe [cps]

Ni [cps]
10 
Cu [cps]
11 
Ge [cps]
12 
Sr [cps]
13 
Ta [cps]
14 
icoh/coh scat
0.00002022.2-0.072250610446302569941722726442769312.88
0.00052021.9-0.07194671189289584036418911928948511.29
0.00102021.5-0.071546310925309564041821432329666212.20
0.00152021.1-0.071139615052275528335319127232068810.82
0.00202020.8-0.07085387984329680428017217826073412.22
0.00252020.4-0.07044677537569738037022717936567013.03
0.00302020.0-0.070060717624135785663161329943866713.47
0.00352019.6-0.0696698128692552913134121223938970911.39
0.00402019.3-0.0693708150594360915232421528828059912.44
0.00452018.9-0.0689693159684808914135219121836164513.03
0.00502018.5-0.0685776199295371964739124318431361712.08
0.00552018.2-0.06828681657358561008838913936739866412.12
0.00602017.8-0.06788402427538951005634225721542455511.51
0.00652017.4-0.06747992754116021079935120119037663613.21
0.00702017.1-0.06718871617411441147137718021730967512.75
0.00752016.7-0.0667878202498481153136816813946871811.30
0.00802016.3-0.066386422757582997044221012641973311.22
0.00852016.0-0.0660792220129352978237121119842066611.71
0.00902015.6-0.065683524194325104213851424431865611.62
0.00952015.2-0.0652884268754551025744919913836675510.45
0.01002014.8-0.064887519655485971937020716737070311.73
0.01052014.5-0.064571121247323888840325623232771312.39
0.01102014.1-0.064181916540336875339716411740575211.50
0.01152013.7-0.063777920065328929834023911028168212.98
0.01202013.4-0.06341009220853371002132320527545466413.17
0.01252013.0-0.0630972179111343915738016926252462111.69
0.01302012.6-0.062677918575456768038716322334761912.02
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0.01402011.9-0.061989916129343686038622819467456213.06
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0.01502011.2-0.0612125815735601658843119333947472712.75
0.01552010.8-0.060813861295345866403891734049971411.65
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