Steidle, Simon Dominik; Warken, Sophie; Schorndorf, Nils; Förstel, Julius; Schröder-Ritzrau, Andrea; Moseley, Gina Elaine; Spötl, Christoph; Aviles, Jeronimo; Stinnesbeck, Wolfgang; Frank, Norbert (2021): U/Th dated speleothems from submerged caves in the northeastern Yucatan Peninsula [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.930526
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Published: 2021-04-20 • DOI registered: 2021-07-13
Abstract:
This dataset contains 48 U-Th ages of 14 speleothems used to reconstruct past sea level between 9ka and 421ka ago. They were collected from submerged caves in an area (<20 km) around Tulum, Quintana Roo, Mexico (20.2°N, 87.5°W) at elevations between 0.0 m a.s.l and -28.7 m a.s.l. The speleothems were collected in situ and their elevation was measured with a dive computer (+-0.1m) at the base of the speleothem. Speleothem length ranges between 2 cm and 34 cm. The measurements were carried out by a multi-collector inductively coupled plasma mass spectrometer (ThermoFisher Neptune Plus).
Related to:
Steidle, Simon Dominik; Warken, Sophie F; Schorndorf, Nils; Förstel, Julius; Schröder-Ritzrau, Andrea; Moseley, Gina Elaine; Spötl, Christoph; Aviles, Jeronimo; Stinnesbeck, Wolfgang; Frank, Norbert (2021): Reconstruction of Middle to Late Quaternary sea level using submerged speleothems from the northeastern Yucatán Peninsula. Journal of Quaternary Science, https://doi.org/10.1002/jqs.3365
Coverage:
Median Latitude: 20.199929 * Median Longitude: -87.500929 * South-bound Latitude: 20.199000 * West-bound Longitude: -87.513000 * North-bound Latitude: 20.200000 * East-bound Longitude: -87.500000
Minimum DISTANCE: 0.10 cm * Maximum DISTANCE: 31.40 cm
Event(s):
CH8 * Latitude: 20.200000 * Longitude: -87.500000 * Elevation: -8.5 m * Location: Northeastern Yucatan Peninsula * Method/Device: Speleothem sample (SPS) * Comment: length of 34cm
Comment:
Errors are 2 sigma analytical errors (absolute uncertainties). All calculations used the decay constants of Cheng et al. (2013) for 234U and 230Th, Jaffey et al. (1971) for 238U and Le Roux and Glendenin (1963) for 232Th. Corrected 230Th-U ages assume an initial 230Th/232Th activity ratio of 3.5 ± 1.3. Ages are given as age before the year 1950 CE. Measurements were carried out at University of Heidelberg (Germany) in the years 2018/2019 CE.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Steidle, Simon Dominik | |||
| 2 | Sample code/label | Sample label | Steidle, Simon Dominik | |||
| 3 | DISTANCE | Distance | cm | Steidle, Simon Dominik | Geocode – from top | |
| 4 | Uranium-238 | 238U | ng/g | Steidle, Simon Dominik | MC-ICP-MS ThermoFisher Scientific Neptune Plus | |
| 5 | Uranium-238, standard deviation | 238U std dev | ± | Steidle, Simon Dominik | MC-ICP-MS ThermoFisher Scientific Neptune Plus | Uncertainty, 2σ-range, not including half-life uncertainties |
| 6 | Thorium-232 | 232Th | ng/g | Steidle, Simon Dominik | MC-ICP-MS ThermoFisher Scientific Neptune Plus | |
| 7 | Thorium-232, standard deviation | 232Th std dev | ± | Steidle, Simon Dominik | MC-ICP-MS ThermoFisher Scientific Neptune Plus | Uncertainty, 2σ-range, not including half-life uncertainties |
| 8 | Thorium-230/Uranium-238 activity ratio | (230Th/238U) | Steidle, Simon Dominik | MC-ICP-MS ThermoFisher Scientific Neptune Plus | ||
| 9 | Thorium-230/Uranium-238 activity ratio, standard deviation | (230Th/238U) std dev | ± | Steidle, Simon Dominik | MC-ICP-MS ThermoFisher Scientific Neptune Plus | Uncertainty, 2σ-range, not including half-life uncertainties |
| 10 | Thorium-230/Thorium-232 activity ratio | (230Th/232Th) | Steidle, Simon Dominik | MC-ICP-MS ThermoFisher Scientific Neptune Plus | ||
| 11 | Thorium-230/Thorium-232 activity ratio, standard deviation | (230Th/232Th) std dev | ± | Steidle, Simon Dominik | MC-ICP-MS ThermoFisher Scientific Neptune Plus | Uncertainty, 2σ-range, not including half-life uncertainties |
| 12 | δ234 Uranium | δ234U | ‰ | Steidle, Simon Dominik | MC-ICP-MS ThermoFisher Scientific Neptune Plus | |
| 13 | δ234 Uranium, standard deviation | δ234U std dev | ± | Steidle, Simon Dominik | MC-ICP-MS ThermoFisher Scientific Neptune Plus | Uncertainty, 2σ-range, not including half-life uncertainties |
| 14 | Age, dated | Age dated | ka | Steidle, Simon Dominik | Age, 230Th/U | Uncorrected |
| 15 | Age, dated, standard deviation | Age dated std dev | ± | Steidle, Simon Dominik | Age, 230Th/U | Uncertainty, 2σ-range, uncorrected |
| 16 | Age, dated | Age dated | ka | Steidle, Simon Dominik | Age, 230Th/U | Corrected |
| 17 | Age, dated, standard deviation | Age dated std dev | ± | Steidle, Simon Dominik | Age, 230Th/U | Uncertainty, 2σ-range, corrected |
| 18 | δ234 Uranium (0) | δ234U (0) | ‰ | Steidle, Simon Dominik | MC-ICP-MS ThermoFisher Scientific Neptune Plus | initial |
| 19 | δ234 Uranium (0), standard deviation | δ234U (0) std dev | ± | Steidle, Simon Dominik | MC-ICP-MS ThermoFisher Scientific Neptune Plus | 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:
808 data points