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1 The Geochemical characteristics of hot spring systems THE characteristic element abundance value/concentration coefficients of the geochemical characteristics ofTengchong are: Au-6.10/4.07, As-7.13/3.96, Sb-1.25/6.23, Pb-30.87/2.47, Th-20.25/2.11, Cd-0.57/2.83; Li-40/2, Ti-1.30/2.89 (abundance unit: Au-1 × 10~(-9), the others-1 ×10~(-6) ). Generally, these 8 elements can reflect the characteristics of the metallogenetic process with magmatic hydrothermal activities in the area. The abundances of other 32 elements measured are similar tothose of the crust. Granite in the area belongs to the calc-poor granite. Compared with the granite abundance in theworld, Cr, Co, Th, Pb and Cd are the concentrated elements. Their change in the regional distributionshows that Ca, Na, Th, Zn and REE increase from north to south, but Mg, Ti, Ba, Cu, Li, V, Zr, As
1 The Geochemical characteristics of hot spring systems THE characteristic element abundance value / concentration coefficients of the geochemical characteristics of Tengchong are: Au-6.10 / 4.07, As-7.13 / 3.96, Sb- 1.25 / 6.23, Pb-30.87 / 2.47, Th- 20.25 /2.11, Cd-0.57 / 2.83; Li-40/2, Ti-1.30 / 2.89 (abundance unit: Au-1 × 10 -9, the others-1 × 10 -6) these 8 elements can reflect the characteristics of the metallogenetic process with magmatic hydrothermal activities in the area. The abundances of 32 elements measured are similar tothose of the crust. Granite in the area belongs to the calc-poor granite. Compared with the granite abundance In the world, Cr, Co, Th, Pb and Cd are the concentrated elements. Their change in the regional distributionshows that Ca, Na, Th, Zn and REE increase from north to south, but Mg, Ti, Ba, Cu, Li, V, Zr, As