|
Sample
|
Sample weight (g)
|
9Be spike (mg)
|
AMS ratioa (× 10−12)
|
Error in AMS ratio (%)
|
10Be concentration (× 104 atoms g−1)
|
|---|
|
Lan-1
|
24.44
|
0.199
|
0.020
|
15.9
|
0.95 ± 0.17
|
|
Lan-2
|
39.59
|
0.200
|
0.056
|
7.7
|
1.80 ± 0.15
|
|
Lan-5
|
14.98
|
0.199
|
0.028
|
17.6
|
2.24 ± 0.43
|
|
Lan-10
|
42.61
|
0.201
|
0.045
|
8.2
|
1.33 ± 0.12
|
|
Lan-11
|
44.95
|
0.201
|
0.136
|
7.1
|
3.97 ± 0.29
|
|
Lan-12
|
44.49
|
0.198
|
0.040
|
9.0
|
1.11 ± 0.11
|
|
Lan-13
|
44.95
|
0.201
|
0.087
|
6.3
|
2.51 ± 0.16
|
- Please see Fig. 2 for location of sample sites
- The error of AMS ratio is at 1σ level. The associated average 10Be/9Be full process blank ratio is (2.41 ± 0.32) × 10−15
