230Th dating results analyzed at the University of Minnesota (Dataset S1)


The error is 2s error. U decay constants: l238 = 1.55125x10-10 (Jaffey et al., 1971) and l234 = 2.82206x10-6 (Cheng et al., 2013). Th decay constant: l230 = 9.1705x10-6 (Cheng et al., 2013).d234U = ([234U/238U]activity – 1)x1000. d234Uinitial was calculated based on 230Th age (T), i.e., d234Uinitial = d234Umeasured x el234xT.Corrected 230Th ages assume the initial 230Th/232Th atomic ratio of 4.4 ±2.2 x10-6. Those are the values for a material at secular equilibrium, with the bulk earth 232Th/238U value of 3.8. The errors are arbitrarily assumed to be 50%.**B.P. stands for "Before Present" where the "Present" is defined as the year 1950 A.D.

DOI https://doi.org/10.1594/PANGAEA.957432
Related Identifier https://doi.org/10.1594/PANGAEA.957457
Related Identifier https://doi.org/10.1111/jbi.14592
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.957432
Creator Braun, Kerstin ; Cowling, Richard; Bar-Matthews, Miryam; Matthews, Alan; Ayalon, Avner; Zilberman, Tami; Difford, Mark; Edwards, Lawrence; Li, Xianglei ; Marean, Curtis W
Publisher PANGAEA
Publication Year 2023
Funding Reference European Commission, 238512; John Templeton Foundation, 48952; National Science Foundation, 2002474; National Science Foundation, 2002486; National Science Foundation, BCS 0524087; National Science Foundation, BCS 1138073
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Language English
Resource Type Dataset
Format text/tab-separated-values
Size 467 data points
Discipline Earth System Research
Spatial Coverage (19.770 LON, -33.730 LAT); Cape Limeworks Cave 1, Robertson, Western Cape, South Africa