Thines, Jennifer E; Ukstins, Ingrid Anne; Wall, Corey; Schmitz, Mark D (2021): Thorium, Uranium and Lead isotopic and geochronologic data for zircon crystals following LA-ICP-MS analysis [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.938092, In: Thines, JE et al. (2021): Trace element concentrations and geochronologic data of zircon from ignimbrites from the Northern Yemen section of the Afro-Arabian large igneous provicne [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.938094
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Published: 2021-11-11 • DOI registered: 2021-12-30
Related to:
Thines, Jennifer E; Ukstins, Ingrid Anne; Wall, Corey; Schmitz, Mark (2021): Volumetric extrusive rates of silicic supereruptions from the Afro-Arabian large igneous province. Nature Communications, 12(1), https://doi.org/10.1038/s41467-021-26468-5
Funding:
National Science Foundation (NSF), grant/award no. EAR-1759200: Collaborative Research: AGeS2 (Awards for Geochronology Student research) Program: Democratizing access to geochronology and promoting interdisciplinary science
National Science Foundation (NSF), grant/award no. EAR-1759353: Collaborative Research: AGeS2 (Awards for Geochronology Student research) Program: Democratizing access to geochronology and promoting interdisciplinary science
Coverage:
Median Latitude: 15.249545 * Median Longitude: 44.097121 * South-bound Latitude: 15.160000 * West-bound Longitude: 43.945000 * North-bound Latitude: 15.480000 * East-bound Longitude: 44.416667
Event(s):
Comment:
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.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Thines, Jennifer E | |||
| 2 | Unit | Unit | Thines, Jennifer E | |||
| 3 | Location | Location | Thines, Jennifer E | |||
| 4 | LATITUDE | Latitude | Thines, Jennifer E | Geocode | ||
| 5 | LONGITUDE | Longitude | Thines, Jennifer E | Geocode | ||
| 6 | Sample ID | Sample ID | Thines, Jennifer E | (a) | ||
| 7 | Thorium/Uranium ratio | Th/U | Thines, Jennifer E | See description in dataset comment | (b) | |
| 8 | Parameter | Parameter | arbitrary units | Thines, Jennifer E | See description in dataset comment | 206Pb* (x10-13 mol) (c) |
| 9 | Parameter | Parameter | arbitrary units | Thines, Jennifer E | See description in dataset comment | 206Pb* (mol %) (c) |
| 10 | Parameter | Parameter | arbitrary units | Thines, Jennifer E | See description in dataset comment | Pb*/Pb (c) |
| 11 | Lead | Pb | pg | Thines, Jennifer E | See description in dataset comment | (c) |
| 12 | Lead-206/Lead-204 ratio | 206Pb/204Pb | Thines, Jennifer E | See description in dataset comment | (d) | |
| 13 | Lead-208/Lead-206 ratio | 208Pb/206Pb | Thines, Jennifer E | See description in dataset comment | (e) | |
| 14 | Lead-207/Lead-206 ratio | 207Pb/206Pb | Thines, Jennifer E | See description in dataset comment | (e) | |
| 15 | Lead-207/Lead-206 ratio, error, relative | 207Pb/206Pb e rel | % | Thines, Jennifer E | See description in dataset comment | (f) |
| 16 | Lead-207/Uranium-235 ratio | 207Pb/235U | Thines, Jennifer E | See description in dataset comment | (e) | |
| 17 | Lead-207/Uranium-235 ratio, error, relative | 207Pb/235U e rel | % | Thines, Jennifer E | See description in dataset comment | (f) |
| 18 | Lead-206/Uranium-238 ratio | 206Pb/238U | Thines, Jennifer E | See description in dataset comment | (e) | |
| 19 | Lead-206/Uranium-238 ratio, error, relative | 206Pb/238U e rel | % | Thines, Jennifer E | See description in dataset comment | (f) |
| 20 | Coefficient | Coeff | Thines, Jennifer E | See description in dataset comment | ||
| 21 | Lead-207/Lead-206 ratio | 207Pb/206Pb | Thines, Jennifer E | See description in dataset comment | (g) | |
| 22 | Lead-207/Lead-206 ratio, error | 207Pb/206Pb e | ± | Thines, Jennifer E | See description in dataset comment | (f) |
| 23 | Lead-207/Uranium-235 ratio | 207Pb/235U | Thines, Jennifer E | See description in dataset comment | (g) | |
| 24 | Lead-207/Uranium-235 ratio, error | 207Pb/235U e | ± | Thines, Jennifer E | See description in dataset comment | (f) |
| 25 | Lead-206/Uranium-238 ratio | 206Pb/238U | Thines, Jennifer E | See description in dataset comment | (g) | |
| 26 | Lead-206/Uranium-238 ratio, error | 206Pb/238U e | ± | Thines, Jennifer E | See description in dataset comment | (f) |
| 27 | Sample comment | Sample comment | Thines, Jennifer E |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
772 data points