Cisneros de León, Alejandro; Schmitt, Axel K; Kutterolf, Steffen; Schindlbeck-Belo, Julie; Hernández, Walter; Sims, Kenneth W W; Garrison, Jennifer M; Kant, Lisa; Weber, Bodo; Wang, Kuo-Lung; Lee, Hao-Yang; Trumbull, Robert B (2021): Whole-rock U-Th and Sr-Nd isotope compositions of Ilopango TB suite (Table S9) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.929664, In: Cisneros de León, A et al. (2021): Zircon petrochronology and tephra compositions of the last four explosive eruptions from Ilopango caldera (El Salvador) [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.929673
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Abstract:
This dataset includes results from U-series and Sr-Nd whole-rock isotope compositions of the last four explosive silicic eruptions from Ilopango caldera in El Salvador (TBJ, TB2, TB3, and TB4). Sr and Nd isotope ratios were measured with a Nu Instruments thermal ionization mass spectrometer (Nu-TIMS) at Departamento de Geología, Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE) in the state of Baja California (Mexico), whereas U and Th concentrations and isotopes were measured at University of Wyoming (UWYO) were measured by isotope dilution using a ThermoFisher Neptune ICP-MS multicollector.
Coverage:
Median Latitude: 13.721855 * Median Longitude: -89.246908 * South-bound Latitude: 13.678660 * West-bound Longitude: -89.436830 * North-bound Latitude: 13.814820 * East-bound Longitude: -89.128260
Event(s):
Comment:
Activity ratios calculated using decay constants of 9.1577 x 10-6 a-1 for 230Th (Cheng et al., 2000), 4.9475 x 10-11 a-1 for 232Th (Le Roux & Glendenin, 1963), 2.8263 x 10-6 a-1 for 234U (Cheng et al., 2000), and 1.55125 x 10-10 a-1 for 238U (Jaffey et al., 1971).
BCR-1, TML, AGV-2: relative to reference values from Scott et al. (2019).
Parameter(s):
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
139 data points