LF4907 < 20130413183551-399810 > pub
  • technique: IRMS with LF
  • device: Thermo Scientific MAT253
  • description: Accounting a difference of Δ(17O/16O) for meteoric water from ones for the silicate/oxide minerals (Tanaka and Nakamura, 2013), δ(17O/16O)_VSMOW value of silicate/oxide minerals, in the strict sense, is calculated as, δ(17O/16O)_VSMOW = δ(17O/16O) – 0.034, where a relationship between the δ(17O/16O)_VSMOW and the terrestrial silicate fractionation line is expressed as Δ(17O/16O)_TSFL = [ln{(δ(17O/16O)_VSMOW + 0.034) / 1000 + 1} – 0.527 × ln(δ(18O/16O) / 1000 + 1)] / 1000, based on the measurements of VSMOW2 and San Carlos olivine standard (δ18O/16O = 5.27±0.12, δ17O/16O_VSMOW = 2.71±0.07).
  • modified at 2019-02-07
  • stone: OK10a-b
measured value uncertainty unit description
δ(17O/16O) 3.827 0.026
δ(18O/16O) 4.973 0.008
Δ(17O/16O) 1.239
name global-id
name spots global-id