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Table 1 Individual standard water data of this study

From: Two-point normalization for reducing inter-laboratory discrepancies in δ17O, δ18O, and Δ17O of reference silicates

Sample #

δ17OVSMOWa

δ18OVSMOWa

δ'17OVSMOWb

δ'18OVSMOWb

Δ'17Oc

VSMOW

     

 VSMOW-42

− 0.045

− 0.099

− 0.045

− 0.099

0.007

 VSMOW-43

− 0.030

− 0.044

− 0.030

− 0.044

− 0.007

 VSMOW-44

0.047

0.086

0.047

0.086

0.001

 VSMOW-45

− 0.003

0.015

− 0.003

0.015

− 0.011

 VSMOW-47

− 0.036

− 0.064

− 0.036

− 0.064

− 0.002

 VSMOW-48

0.009

0.030

0.009

0.030

− 0.006

 VSMOW-49

− 0.014

− 0.030

− 0.014

− 0.030

0.002

 VSMOW-50

0.034

0.064

0.034

0.064

0.000

 VSMOW-51

0.024

0.035

0.024

0.035

0.005

 VSMOW-52

− 0.005

− 0.017

− 0.005

− 0.017

0.005

 VSMOW-53

0.019

0.025

0.019

0.025

0.006

Average

0.000

0.000

0.000

0.000

0.000

Standard deviation

0.030

0.056

0.030

0.056

0.006

SLAP

     

 SLAP-15

− 29.083

− 54.334

− 29.514

− 55.866

− 0.017

 SLAP-16

− 29.256

− 54.685

− 29.692

− 56.237

0.001

 SLAP-19

− 29.114

− 54.438

− 29.546

− 55.975

0.009

 SLAP-20

− 29.276

− 54.713

− 29.713

− 56.267

− 0.005

 SLAP-21

− 29.165

− 54.490

− 29.599

− 56.031

− 0.014

 SLAP-23

− 29.079

− 54.347

− 29.510

− 55.879

− 0.006

 SLAP-24

− 29.054

− 54.311

− 29.485

− 55.842

0.000

 SLAP-25

− 29.155

− 54.499

− 29.588

− 56.041

0.001

Average

29.148

54.477

29.581

56.017

0.004

Standard deviation

0.082

0.154

0.085

0.163

0.008

  1. Earlier results and 3σ outliers of VSMOW and SLAP analysis are not included due to analytical error
  2. aδ-values are expressed as per mil relative to Vienna Standard Mean Ocean Water (VSMOW)
  3. bDelta prime (δ') is defined as 103 × ln(δxO + 1) by Miller (2002)
  4. cDeviation of 17O/16O ratio of sample is estimated as: Δ'17O = δ'17OVSMOW − 0.528 × δ'18OVSMOW