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Schorndorf, Nils; Frank, Norbert; Ritter, Simon Michael; Warken, Sophie F; Scholz, Christian; Keppler, Frank; Scholz, Denis; Weber, Michael; Avilés Olguin, Jerónimo; Stinnesbeck, Wolfgang (2022): 230Th/U-dating of subaqueous grown speleothems (Hells Bells) from the northeastern Yucatán Peninsula [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.942956

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Abstract:
This dataset contains 80 U-Th ages of subaqueous grown speleothems (Hells Bells) from the north-eastern Yucatán Peninsula. These secondary carbonates were collected from three different sinkholes (cenotes) southwest of Cancún, Quintana Roo, Mexico (20.51–20.52°N, 87.01–87.07°W) at water depths between -29.4 m a.s.l and -37.3 m a.s.l. Samples were collected in situ and their elevation was measured with a dive computer (+-0.1m). For samples taken from the bottom of the cenotes, we cannot assign a corresponding water depth since we have no information about their original position on the cave ceiling. The measurements were carried out by a multi-collector inductively coupled plasma mass spectrometer (ThermoFisher Neptune Plus).
Keyword(s):
sea level; speleothem; U/Th; Yucatan Peninsula
Supplement to:
Schorndorf, Nils; Frank, Norbert; Ritter, Simon Michael; Warken, Sophie F; Scholz, Christian; Keppler, Frank; Scholz, Denis; Weber, Michael; Avilés Olguin, Jerónimo; Stinnesbeck, Wolfgang (2023): Mid- to late Holocene sea-level rise recorded in Hells Bells 234U/238U ratio and geochemical composition. Scientific Reports, 13(1), 10011, https://doi.org/10.1038/s41598-023-36777-y
Related to:
Schorndorf, Nils; Frank, Norbert; Ritter, Simon Michael; Warken, Sophie F; Scholz, Christian; Keppler, Frank; Scholz, Denis; Weber, Michael; Avilés Olguin, Jerónimo; Stinnesbeck, Wolfgang (2022): Trace element and stable isotope data of subaqueous grown speleothems (Hells Bells) from the northeastern Yucatán Peninsula. PANGAEA, https://doi.org/10.1594/PANGAEA.945784
Further details:
Cheng, Hai; Edwards, R Lawrence; Shen, Chuan-Chou; Polyak, Victor J; Asmerom, Yemane; Woodhead, Jon D; Hellstrom, John C; Wang, Yongjin; Kong, Xinggong; Spötl, Christoph; Wang, Xianfeng; Alexander, E Calvin (2013): Improvements in 230Th dating, 230Th and 234U half-life values, and U–Th isotopic measurements by multi-collector inductively coupled plasma mass spectrometry. Earth and Planetary Science Letters, 371-372, 82-91, https://doi.org/10.1016/j.epsl.2013.04.006
Coverage:
Median Latitude: 20.858036 * Median Longitude: -87.119888 * South-bound Latitude: 20.853250 * West-bound Longitude: -87.126647 * North-bound Latitude: 20.871917 * East-bound Longitude: -87.023472
Event(s):
Cenote_El_Zapote-Big_Bell_1 * Latitude: 20.857717 * Longitude: -87.126647 * Location: Quintana Roo, Mexico * Method/Device: Speleothem sample (SPS) * Comment: samples taken from the bottom of the cenote
Cenote_El_Zapote-Big_Bell_6 * Latitude: 20.857717 * Longitude: -87.126647 * Location: Quintana Roo, Mexico * Method/Device: Speleothem sample (SPS) * Comment: samples taken from the bottom of the cenote
Cenote_El_Zapote-MUDE * Latitude: 20.857717 * Longitude: -87.126647 * Location: Quintana Roo, Mexico * Method/Device: Speleothem sample (SPS) * Comment: samples taken from the bottom of the cenote
Comment:
Errors are 2 sigma analytical errors (absolute uncertainties). All ages have been calculated with the half lives of Cheng et al., 2013. Corrected 230Th/U-ages assume an initial (230Th/232Th) activity ratio of 2 ± 1. 230Th/U-ages are given relative to the year 1950 (BP). Measurements were carried out at the Universities of Heidelberg (Germany) and Mainz (Germany).
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEventSchorndorf, Nils
2Sample IDSample IDSchorndorf, Nils
3Sample code/labelSample labelSchorndorf, Nils
4LaboratoryLabSchorndorf, NilsAnalyzing laboratory
5SiteSiteSchorndorf, Nils
6LATITUDELatitudeSchorndorf, NilsGeocode
7LONGITUDELongitudeSchorndorf, NilsGeocode
8DISTANCEDistancecmSchorndorf, NilsGeocode – from apex
9CommentCommentSchorndorf, NilsDistance from apex
10DEPTH, waterDepth watermSchorndorf, NilsGeocode
11Uranium-238238Ung/gSchorndorf, NilsMC-ICP-MS ThermoFisher Neptune Plus
12Uranium-238, standard deviation238U std dev±Schorndorf, NilsMC-ICP-MS ThermoFisher Neptune PlusUncertainty, 2σ-range, not including half-life uncertainties
13Thorium-232232Thng/gSchorndorf, NilsMC-ICP-MS ThermoFisher Neptune Plus
14Thorium-232, standard deviation232Th std dev±Schorndorf, NilsMC-ICP-MS ThermoFisher Neptune PlusUncertainty, 2σ-range, not including half-life uncertainties
15Thorium-230/Uranium-238 ratio230Th/238USchorndorf, NilsMC-ICP-MS ThermoFisher Neptune Plus
16Thorium-230/Uranium-238, standard deviation230Th/238U std dev±Schorndorf, NilsMC-ICP-MS ThermoFisher Neptune PlusUncertainty, 2σ-range, not including half-life uncertainties
17Thorium-230/Thorium-232 ratio230Th/232ThSchorndorf, NilsMC-ICP-MS ThermoFisher Neptune Plus
18Thorium-230/Thorium-232, standard deviation230Th/232Th std dev±Schorndorf, NilsMC-ICP-MS ThermoFisher Neptune PlusUncertainty, 2σ-range, not including half-life uncertainties
19δ234 Uraniumδ234USchorndorf, NilsCalculated
20δ234 Uranium, standard deviationδ234U std dev±Schorndorf, NilsCalculatedUncertainty, 2σ-range, not including half-life uncertainties
21Age, datedAge datedkaSchorndorf, NilsCalculatedUncorrected
22Age, dated standard deviationAge dated std dev±Schorndorf, NilsCalculatedUncorrected; Uncertainty, 2σ-range
23Age, datedAge datedkaSchorndorf, NilsCalculatedCorrected
24Age, dated standard deviationAge dated std dev±Schorndorf, NilsCalculatedCorrected; Uncertainty, 2σ-range
25δ234 Uranium (0)δ234U (0)Schorndorf, NilsCalculatedInitial
26δ234 Uranium (0), standard deviationδ234U (0) std dev±Schorndorf, NilsCalculatedInitial; Uncertainty, 2σ-range, not including half-life uncertainties
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1588 data points

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