99093012 < 20190604111736-170611 > on 99093012 pub determined by U-Series_procedures of Yokoyama et al. (1999, 2001, 2003) with TIMS Thermo-Fisher MAT262

measured value uncertainty unit
[Th] 0.134 µg/g
[U] 0.076 µg/g
230Th/232Th 1.339
238U/232Th 1.72
234U/238U 0.998
tables:
  • Table 1d. Major and trace elements, Sr-Nd-Pb-U-Th isotopic compositions, and 226Ra content of representative whole-rock samples of Miyakejima volcano in Stage 2 of Yokoyama, Tetsuya (2003) Mantle metasomatism and rapid ascent of slab components beneath island arcs : Evidence from 238U-230Th-226Ra disequilibria of Miyakejima volcano, Izu arc, Japan, J. Geophys. Res., 108(B7), 2329. more
  • Table 2. Trce element compositions in Plagioclase, Olivine, Clinopyroxene, and Whole rock of sample 3009 (Stage 2) measured by ICP-MS of Yokoyama, Tetsuya (2003) Mantle metasomatism and rapid ascent of slab components beneath island arcs : Evidence from 238U-230Th-226Ra disequilibria of Miyakejima volcano, Izu arc, Japan, J. Geophys. Res., 108(B7), 2329. more