Thorium, Uranium and Lead isotopic and geochronologic data for zircon crystals following LA-ICP-MS analysis

DOI

Individial CA-TIMS ages of analyses in red were excluded from the final age calculation.(a) z1, z2 etc. are labels for single zircon grains or fragments annealed and chemically abraded after Mattinson (2005; doi:10.1016/j.chemgeo.2005.03.011). Data marked in red were not used for final 206Pb/238U date calculations.(b) Model Th/U ratio iteratively calculated from the radiogenic 208Pb/206Pb ratio and 206Pb/238U age.(c) Pb and Pbc represent radiogenic and common Pb, respectively; mol % 206Pb with respect to radiogenic, blank and initial common Pb.(d) Measured ratio corrected for spike and fractionation only. Fractionation estimated at 0.17 +/- 0.03 %/a.m.u. for Daly analyses, based on analysis of NBS-981 and NBS-982.(e) Corrected for fractionation, spike, and common Pb; all common Pb was assumed to be procedural blank: 206Pb/204Pb = 18.042 ± 0.61%; 207Pb/204Pb = 15.537 ± 0.52%; 208Pb/204Pb = 37.686 ± 0.63% (all uncertainties 1-sigma). (f) Errors are 2-sigma, propagated using the algorithms of Schmitz and Schoene (2007; doi:10.1029/2006GC001492).(g) Calculations are based on the decay constants of Jaffey et al. (1971; doi:10.1103/PhysRevC.4.1889). 206Pb/238U and 207Pb/206Pb ages corrected for initial disequilibrium in 230Th/238U using Th/U [magma] = 3.

Identifier
DOI https://doi.org/10.1594/PANGAEA.938092
Related Identifier IsPartOf https://doi.org/10.1594/PANGAEA.938094
Related Identifier References https://doi.org/10.1038/s41467-021-26468-5
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.938092
Provenance
Creator Thines, Jennifer E (ORCID: 0000-0001-9589-960X); Ukstins, Ingrid Anne; Wall, Corey; Schmitz, Mark D ORCID logo
Publisher PANGAEA
Publication Year 2021
Funding Reference National Science Foundation https://doi.org/10.13039/100000001 Crossref Funder ID EAR-1759200 https://www.nsf.gov/awardsearch/showAward?AWD_ID=1759200 Collaborative Research: AGeS2 (Awards for Geochronology Student research) Program: Democratizing access to geochronology and promoting interdisciplinary science; National Science Foundation https://doi.org/10.13039/100000001 Crossref Funder ID EAR-1759353 https://www.nsf.gov/awardsearch/showAward?AWD_ID=1759353 Collaborative Research: AGeS2 (Awards for Geochronology Student research) Program: Democratizing access to geochronology and promoting interdisciplinary science
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Resource Type Dataset
Format text/tab-separated-values
Size 772 data points
Discipline Earth System Research
Spatial Coverage (43.945W, 15.160S, 44.417E, 15.480N); Northern Yemen