Table 2. Soil, plant leave and surface water baseline values.

Sample nr.	Sample type	87Sr/86Sr	2σ (abs.)
1	Soil	0.71057	0.00001
2	Plant leaves	0.70961	0.00002
3	Soil	0.70909	0.00001
4	Plant leaves	0.70992	0.00001
5	Soil	0.70973	0.00001
6	Soil	0.71069	0.00001
7	Plant leaves	0.71006	0.00001
8	Soil	0.70849	0.00001
9	Plant leaves	0.70844	0.00001
10	Soil	0.70893	0.00001
11	Plant leaves	0.70875	0.00001
12	Soil	0.70889	0.00001
13	Plant leaves	0.70845	0.00001
14	Water	0.71002	0.00001
15	Plant leaves	0.71049	0.00001
16	Soil	0.71040	0.00001
17	Water	0.70890	0.00001
18	Soil	0.70909	0.00001
19	Plant leaves	0.71018	0.00001
20	Plant leaves	0.71008	0.00001
Mean		0.70954	0.00153
Median		0.70967
Lowest		0.70844
Higest		0.71069