Table 2.
Elemental concentrations (Zn, C, N) and Zn isotopic compositions for the different samples from the Kulingdakan catchment (Russia)
| Samples | Environment type | [Zn] 1 μg/g | [C] 2 % | [N] 2 % | δ 66 Zn(‰) 3 | δ 66 Zn(‰) 4 | δ 67 Zn(‰) 3 | δ 68 Zn(‰) 3 |
|---|---|---|---|---|---|---|---|---|
| Soils | ||||||||
| North0-10 | North-facing slope | 120 | 4.02 | 0.14 | 0.27 ± 0.03 | −0.02 | 0.44 ± 0.04 | 0.55 ± 0.06 |
| North20-40 | North-facing slope | 121 | 1.14 | 0.04 | 0.18 ± 0.06 | −0.11 | 0.25 ± 0.07 | 0.34 ± 0.12 |
| South20-40 | South-facing slope | 108 | 0.71 | 0.02 | 0.24 ± 0.02 | −0.05 | 0.37 ± 0.03 | 0.47 ± 0.04 |
| South60-100 | South-facing slope | 110 | 0.13 | 0.01 | 0.20 ± 0.05 | −0.09 | 0.30 ± 0.09 | 0.41 ± 0.08 |
| Bog0-20 | Sphagnum peatbog | 108 | 3.35 | 0.17 | 0.21 ± 0.02 | −0.08 | 0.32 ± 0.06 | 0.41 ± 0.04 |
| Sphagnum fuscum mosses | ||||||||
| T1 (0–5 cm) | Sphagnum peatbog | 19.8 | 46.2 | 0.50 | 0.20 | −0.09 | 0.39 | 0.40 |
| T1 (10–20 cm) | Sphagnum peatbog | 13.9 | 46.9 | 0.53 | 0.10 | −0.19 | 0.01 | 0.32 |
| T1 (20–27 cm) | Sphagnum peatbog | 15.1 | 45.6 | 0.52 | 0.67 | 0.38 | 1.21 | 1.32 |
| T1 (28–32 cm) | Sphagnum peatbog | 14.7 | 45.7 | 1.19 | 0.57 | 0.28 | 0.91 | 1.13 |
| T2 (0–5 cm) | Sphagnum peatbog | 14.8 | 48.2 | 0.61 | 0.14 | −0.15 | 0.28 | 0.30 |
| T2 (5–25 cm) | Sphagnum peatbog | 17.2 | 47.0 | 0.73 | 0.21 | −0.08 | 0.24 | 0.47 |
| T2 (25–30 cm) | Sphagnum peatbog | 13.9 | 44.9 | 0.74 | 0.65 | 0.36 | 1.01 | 1.33 |
| T2 (30–32 cm) | Sphagnum peatbog | 20.7 | 40.7 | 1.20 | 0.55 | 0.26 | 0.96 | 1.12 |
| Mosses (Pleurozium schreberi), litter and organic layer | ||||||||
| Live (green) mosses (0–3 cm) | North-facing slope | 19.7 | 48.0 | 0.66 | 0.12 ± 0.06 | −0.17 | 0.36 ± 0.09 | 0.35 ± 0.12 |
| Dead (brown) mosses (3–6 cm) | North-facing slope | 25.5 | 48.1 | 0.31 | 0.03 | −0.26 | 0.25 | 0.18 |
| Litter (7–10 cm) | North-facing slope | 17.1 | 48.1 | 0.80 | 0.41 ± 0.04 | 0.12 | 0.72 ± 0.06 | 0.87 ± 0.07 |
| Organic layer (11–13 cm) | North-facing slope | 39.2 | 47.3 | 0.90 | 0.37 | 0.08 | 0.69 | 0.86 |
The uncertainty reported for the Zn isotopic composition is the standard deviation obtained from duplicate or triplicate measurements depending on the amount of sample available. When no uncertainty was reported, only one measurement was performed. For these samples, the internal (relative) uncertainty of measurements was close to 0.05 ‰ (see Viers et al., ref. [22]). Otherwise the reported uncertainty is 2 s.d for n = 3.
1: Zn concentrations were measured on one sample that is composited (Mosses (Pleurozium schreberi), litter and organic layer) or not (soils, sphagnum fuscum mosses). The analytical error is < 10%.
2: C and N concentrations are from Prokushkin (in prep.).
3: Relative to the JMC Lyon (3-749 L).
4: Relative to the IRMM-3702 (Moeller et al., ref. [56]).