Journal of Chemistry / 2016 / Article / Tab 2 / Research Article
Geochemical and Isotopic Characterisation of Actual Lacustrine Sediments from the Hydrothermal Lake Specchio di Venere , Pantelleria Island (Italy) Table 2 Mean, minimum, and maximum values of geochemical proxies for lacustrine sediment samples from lake Specchio di Venere, Pantelleria island; n is the number of samples for each sediment core.
2 ( ) 4 ( ) 6 ( ) 11 ( ) 12 ( ) Mean Min Max Mean Min Max Mean Min Max Mean Min Max Mean Min Max Wt% Na 1.71 1.06 2.19 1.30 0.94 1.72 0.92 0.66 1.54 1.03 0.83 1.40 1.21 0.73 2.32 K 0.21 0.12 0.27 0.18 0.14 0.21 0.12 0.08 0.18 0.14 0.11 0.17 0.22 0.14 0.34 Ca 8.45 5.39 10.31 13.54 11.80 15.17 18.98 11.61 26.93 17.50 13.25 19.63 10.73 7.73 14.13 Mg 9.84 5.64 11.21 8.76 7.83 9.31 4.53 3.08 6.39 5.68 4.94 6.39 5.40 3.13 8.08 Al 0.28 0.14 0.40 0.30 0.23 0.34 0.19 0.13 0.33 0.25 0.17 0.52 0.48 0.33 0.66 Fe 0.30 0.17 0.48 0.37 0.32 0.43 0.30 0.20 0.45 0.87 0.62 1.37 0.99 0.74 1.38 Mn 0.07 0.05 0.08 0.14 0.11 0.16 0.22 0.17 0.34 0.23 0.19 0.31 0.24 0.14 0.43 mg kg Ti 162 97 223 179 150 199 151 124 202 165 115 286 335 196 412 Rb 24.2 16.5 30.7 20.3 18.6 23.4 12.7 8.7 17.8 14.8 12.1 20.6 24.3 15.6 28.9 Sr 1613 1065 2075 2441 2018 2882 3322 1988 4957 3304 2413 3728 2015 1528 2596 Ba 84.4 55.3 110.4 136.5 111.5 161.7 224.4 140.6 329.7 185.8 135.9 208.9 120.3 92.0 159.2 V 1.9 1.0 3.2 1.9 0.5 2.6 1.4 −0.2 2.5 1.3 0.8 2.2 3.2 1.1 4.9 Ni 0.9 0.5 1.2 1.1 0.8 1.5 1.0 0.3 1.6 0.7 0.5 1.1 1.5 1.0 2.4 Co 0.9 0.7 1.3 1.3 0.9 1.6 1.4 0.9 1.8 0.9 0.9 1.0 1.1 0.9 1.4 As 18.7 11.8 35.2 19.0 13.6 28.4 10.9 9.6 13.4 18.0 14.4 22.8 16.5 10.5 27.4 Mo 4.5 1.1 9.3 23.4 5.8 54.7 5.3 2.5 9.4 5.2 3.9 6.4 5.7 1.2 18.7 Se 0.1 0.1 0.1 0.2 0.1 0.2 0.1 0.0 0.3 0.1 0.1 0.1 0.2 0.1 0.2 Cd 0.3 0.2 0.4 0.5 0.4 0.6 0.4 0.3 0.7 0.3 0.3 0.5 0.3 0.3 0.4 δ 13 C6.55 6.31 6.81 6.13 6.04 6.68 5.57 4.96 6.30 5.88 5.41 6.37 6.21 5.35 7.38 δ 18 O0.97 0.61 1.30 0.48 0.46 0.61 1.44 −0.23 5.13 3.20 0.90 5.92 1.63 0.44 4.51