Table 3 Concentrations, NLi values, and alteration depth results from 7-day PCT (average of duplicate samples) for different materials used in this study (Dike excluded).

From: Applying laboratory methods for durability assessment of vitrified material to archaeological samples

Material

Preparation

Value

Al

Na

K

Si

BA5 (Amphibolite)

 

conc., mg L−1

3.0 ± 0.3

3.0 ± 0.3

2.7 ± 0.3

16 ± 2

 

1250 °C

NLi, (×103 g m2)

16 ± 2

120 ± 10

97 ± 12

37 ± 4

  

ALi, nm

6.0 ± 0.8

43 ± 6

36 ± 5

14 ± 2

  

conc., mg L−1

3.1 ± 0.3

2.3 ± 0.2

2.0 ± 0.2

13 ± 1

 

1400 °C

NLi, (×103 g m2)

16 ± 2

89 ± 12

73 ± 10

30 ± 3

  

ALi, nm

6.0 ± 0.8

33 ± 5

27 ± 4

11 ± 1

  

conc., mg L−1

2.9 ± 0.3

2.5 ± 0.3

2.2 ± 0.2

14 ± 1

 

Lab. Oxides

NLi, (×103 g m2)

15 ± 2

96 ± 13

80 ± 11

33 ± 3

  

ALi, nm

6.0 ± 0.7

36 ± 5

30 ± 4

12 ± 1

443 Granite

1250 °C

conc., mg L−1

5.9 ± 0.6

7.4 ± 0.7

0.91 ± 0.09

21 ± 2

  

NLi, (×103 g m2)

37 ± 4

110 ± 10

6.2 ± 1.5

33 ± 3

  

ALi, nm

14 ± 2

39 ± 5

2.0 ± 0.6

12 ± 1

 

1400 °C

conc., mg L−1

5.0 ± 0.5

5.3 ± 0.5

0.85 ± 0.1

24 ± 2

  

NLi, (×103 g m2)

31 ± 3

76 ± 8

5.8 ± 1.5

39 ± 4

  

ALi, nm

11 ± 1

28 ± 3

2.0 ± 0.6

14 ± 2

  

conc., mg L−1

9.3 ± 0.9

17 ± 2

4.6 ± 0.5

38 ± 4

 

Lab. Oxides

NLi, (×103 g m2)

58 ± 6

240 ± 20

31 ± 3

60 ± 6

  

ALi, nm

21 ± 2

89 ± 10

12 ± 1

22 ± 2

  1. The relative uncertainties for the concentrations are 10%. Relative uncertainties were calculated with Eqs. 4 and 5 for NLi and depth, respectively.