Economic and Environmental Geology

Table. 2.

Table. 2.

Geochemical characteristics of Li-Sn bearing granitoid (element content and ratios)

Indicators Criteria Tonggosan granite References
SiO2 ≥72 % 75.4 % Flinter, 1971; Tischendorf, 1977; Moseley, 1981
Sn >10 ppm 102 ppm Flinter, 1971; Biste, 1981; Ivanov and Spomior, 1981;
Li >72 ppm >400 ppm Biste, 1981; Ivanov and Spomior, 1981;
Rb >326 ppm 748 ppm Biste, 1981
Be >4 ppm 10.8 ppm Ivanov and Spomior, 1981; Moseley, 1981
F >1,415 ppm 1,700 ppm Biste, 1981; Moseley, 1981
Mg/Li <10 2.5 Selway et al., 2005
Nb/Ta <8 2.6 Selway et al., 2005
(Li×1000)/K >2.4 14.6 Tauson and Kozlov, 1973
Ba/Rb <0.5 0.02 Tauson and Kozlov, 1973
K/Rb <130 36.6 Beus and Grigorian, 1977
Rb/Sr >6 91.2 Govett, 1983
(Rb2×Li)/(K×Mg×Sr) >10-3 0.9986 Govett, 1983
Al2O3/(Na2O+K2O+CaO)* ≥1.1 1.5 Govett, 1983
Log(Li×Rb×Be×F×Sn) >9 11.7 Turekian and Wedepohl, 1961

* Mole ratio

Econ. Environ. Geol. 2022;55:521-9 https://doi.org/10.9719/EEG.2022.55.5.521
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