Table 1 18O and D average enrichment factor (f) of OU2 and EV1 alteration layers after the exposure to the doped vapor (measured by NanoSIMS)

From: Long-term weathering rate of stained-glass windows using H and O isotopes

OU2

Time

RH (%)

f (18O)

f (D)

1 day—S1

90

–

6.1 ± 0.0 (n = 1)

1 day—S2

90

–

5.3 ± 0.0 (n = 1)

2 months—S1

90

2.2 ± 0.2 (n = 3)

13.5 ± 3.9 (n = 5)

2 months—S2

90

1.9 ± 0.2 (n = 3)

12.8 ± 4.8 (n = 12)

2 months

40

1.6 ± 0.0 (n = 1)

7.9 ± 0.0 (n = 1)

2 months

25

1.4 ± 0.1 (n = 2)

–

2.75 months

70

1.7 ± 0.2 (n = 7)

–

14 months

90

2.5 ± 0.5 (n = 7)

25.7 ± 4.7 (n = 6)

EV1

 1 day

90

1.5 ± 0.1 (n = 3)

–

 2 months

90

2.3 ± 0.5 (n = 2)

–

 2 months

25

1.4 ± 0.2 (n = 3)

–

 14 months

90

2.8 ± 0.3 (n = 3)

–

  1. Average values are calculated from “n” different analyzed zones (whose surface area is 20 × 20 µm²) carried out from the surface to the pristine glass interface on one sample. S1 and S2 correspond to the two series of analyses performed on the same sample at 1 year of interval
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