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).
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
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):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Schorndorf, Nils | |||
| 2 | Sample ID | Sample ID | Schorndorf, Nils | |||
| 3 | Sample code/label | Sample label | Schorndorf, Nils | |||
| 4 | Laboratory | Lab | Schorndorf, Nils | Analyzing laboratory | ||
| 5 | Site | Site | Schorndorf, Nils | |||
| 6 | LATITUDE | Latitude | Schorndorf, Nils | Geocode | ||
| 7 | LONGITUDE | Longitude | Schorndorf, Nils | Geocode | ||
| 8 | DISTANCE | Distance | cm | Schorndorf, Nils | Geocode – from apex | |
| 9 | Comment | Comment | Schorndorf, Nils | Distance from apex | ||
| 10 | DEPTH, water | Depth water | m | Schorndorf, Nils | Geocode | |
| 11 | Uranium-238 | 238U | ng/g | Schorndorf, Nils | MC-ICP-MS ThermoFisher Neptune Plus | |
| 12 | Uranium-238, standard deviation | 238U std dev | ± | Schorndorf, Nils | MC-ICP-MS ThermoFisher Neptune Plus | Uncertainty, 2σ-range, not including half-life uncertainties |
| 13 | Thorium-232 | 232Th | ng/g | Schorndorf, Nils | MC-ICP-MS ThermoFisher Neptune Plus | |
| 14 | Thorium-232, standard deviation | 232Th std dev | ± | Schorndorf, Nils | MC-ICP-MS ThermoFisher Neptune Plus | Uncertainty, 2σ-range, not including half-life uncertainties |
| 15 | Thorium-230/Uranium-238 ratio | 230Th/238U | Schorndorf, Nils | MC-ICP-MS ThermoFisher Neptune Plus | ||
| 16 | Thorium-230/Uranium-238, standard deviation | 230Th/238U std dev | ± | Schorndorf, Nils | MC-ICP-MS ThermoFisher Neptune Plus | Uncertainty, 2σ-range, not including half-life uncertainties |
| 17 | Thorium-230/Thorium-232 ratio | 230Th/232Th | Schorndorf, Nils | MC-ICP-MS ThermoFisher Neptune Plus | ||
| 18 | Thorium-230/Thorium-232, standard deviation | 230Th/232Th std dev | ± | Schorndorf, Nils | MC-ICP-MS ThermoFisher Neptune Plus | Uncertainty, 2σ-range, not including half-life uncertainties |
| 19 | δ234 Uranium | δ234U | ‰ | Schorndorf, Nils | Calculated | |
| 20 | δ234 Uranium, standard deviation | δ234U std dev | ± | Schorndorf, Nils | Calculated | Uncertainty, 2σ-range, not including half-life uncertainties |
| 21 | Age, dated | Age dated | ka | Schorndorf, Nils | Calculated | Uncorrected |
| 22 | Age, dated standard deviation | Age dated std dev | ± | Schorndorf, Nils | Calculated | Uncorrected; Uncertainty, 2σ-range |
| 23 | Age, dated | Age dated | ka | Schorndorf, Nils | Calculated | Corrected |
| 24 | Age, dated standard deviation | Age dated std dev | ± | Schorndorf, Nils | Calculated | Corrected; Uncertainty, 2σ-range |
| 25 | δ234 Uranium (0) | δ234U (0) | ‰ | Schorndorf, Nils | Calculated | Initial |
| 26 | δ234 Uranium (0), standard deviation | δ234U (0) std dev | ± | Schorndorf, Nils | Calculated | Initial; Uncertainty, 2σ-range, not including half-life uncertainties |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1588 data points