borotope < 20150413213314-292075 > on tour-TO5 pub determined by B_procedures of Nakamura et al. (1992) with TIMS Thermo-Fisher MAT261

measured value uncertainty unit
δ11B -14.5 0.1 ‰
11B/10B 3.9947 0.0004
tables:
  • Table 1. Whole-rock boron concentrations, boron isotope compositions, and major element compositions, and modal abundances of metamorphic minerals in metasedimentary rocks of the Sambagawa Metamorphic Belt of Nakano, Toshio (2001) Boron isotope geochemistry of metasedimentary rocks and tourmalines in a subduction zone metamorphic suite, Physics of The Earth and Planetary Interiors, 127, 233-252. more
  • Table 2a. Mass discrimination factors for various tourmalines (TIMS) of Nakano, Toshio (2001) Boron isotope geochemistry of metasedimentary rocks and tourmalines in a subduction zone metamorphic suite, Physics of The Earth and Planetary Interiors, 127, 233-252. more
  • Table 2b. Mass discrimination factors for various tourmalines (SIMS) of Nakano, Toshio (2001) Boron isotope geochemistry of metasedimentary rocks and tourmalines in a subduction zone metamorphic suite, Physics of The Earth and Planetary Interiors, 127, 233-252. more
  • Table 3. B concentrations of minerals in metasedimentary rocks in the Sambagawa Metamorphic Belt, as a function of metamorphic grade of Nakano, Toshio (2001) Boron isotope geochemistry of metasedimentary rocks and tourmalines in a subduction zone metamorphic suite, Physics of The Earth and Planetary Interiors, 127, 233-252. more