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Table 1 AMS measured concentrations of 10Be and calculated surface exposure ages for the Chironico landslide

From: The Chironico landslide (Valle Leventina, southern Swiss Alps): age and evolution

Sample name

Latitude (DD.DD)

Longitude (DD.DD)

Elevation (m)

Boulder height (m)

Sample thickness (cm)

Quartz dissolved (g)

Shielding correction factor

10Be (at/g) ×103

Error (at/g) ×103

Exposure age (ka)

Erosion corrected ages using 1 mm ka−1 (ka)

Chi-1

46.4155

8.8524

761

3.0

2.0

32.2443

0.9773

104.00

5.38

13.92 ± 0.72 (0.99)

14.09 ± 0.74 (1.01)

Chi-3

46.4139

8.8543

742

2.0

5.0

10.8599

0.9818

97.71

7.64

13.57 ± 1.06 (1.25)

13.72 ± 1.09 (1.28)

Chi-4

46.4161

8.8516

764

1.5

3.0

30.3292

0.9500

94.92

5.08

13.14 ± 0.71 (0.95)

13.29 ± 0.72 (0.97)

Chi-5a-2a

46.4280

8.8488

815

15.0

5.0

29.6500

0.9500

99.83

7.29

13.47 ± 0.99 (1.19)

13.62 ± 1.01 (1.21)

Chi-6

46.4271

8.8493

802

6.0

2.0

31.7128

0.9500

96.54

5.34

12.84 ± 0.71 (0.95)

12.98 ± 0.73 (0.97)

Chi-7

46.4271

8.8490

805

3.0

2.5

29.6054

0.9794

98.93

5.34

12.80 ± 0.69 (0.93)

12.94 ± 0.71 (0.95)

Chi-10a

46.4186

8.8490

801

3.0

2.0

31.6899

0.9772

82.17

5.93

10.63 ± 0.77 (0.93)

10.73 ± 0.79 (0.94)

Chi-11a

46.4174

8.8502

800

2.0

1.0

24.7579

0.9772

118.85

7.96

15.27 ± 1.03 (1.27)

15.46 ± 1.06 (1.30)

Chi-12a

46.4238

8.8495

790

5.0

3.0

31.3620

0.9836

99.91

6.79

13.09 ± 0.89 (1.10)

13.23 ± 0.91 (1.12)

  1. aSamples were measured on the 6 MV Tandem accelerator, whereas the others were measured on the 0.5 MV Tandy accelerator