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Si,Al,Ca,Mg,Fe,Na,K,CO_3~(-2),F,etc.are detected from the fluid inclusion loachates.Among these constituents,Si,Na,and CO_3~(-2)are predominant,amounting to more than 80percent.This indicates that the ore-forming solution must be alkalino with Si,Na,and CO_3~(-2)as its dominant components.Homogenization temperatures for the solution range from 80 to360℃.Although rock quartz can crystallize at the above temperature interval,perfect crystalsof economic importance are largely formed below 260℃.The temperature of formation in-creases toward the granite intrusives at a rate of about one degree per meter.It is esti-mated from the lithostatic load that the salinity of rock quartz is 17—23(NaCl wt%),while that of vein quartz is relatively high as compared with the former.There is a ten-dency for the salinity of the ore-forming solution to increase with depth.
Si, Al, Ca, Mg, Fe, Na, K, CO 3 -2, F, etc. detected from the fluid inclusion loachates. Amm these constituents, Si, Na, and CO 3 -2 are predominant , amounting to more than 80percent.This indicates that the ore-forming solution must be alkalino with Si, Na, and CO_3 ~ (-2) as its dominant components. Homogenization temperatures for the solution range from 80 to 360 ° C .Although rock quartz can crystallize at the above temperature interval, perfect crystals of economic importance are substantially formed below 260 ° C. The temperature of formation in-creases toward the granite intrusives at a rate of about one degree per meter. It is esti-mated from the lithostatic load that the salinity of rock quartz is 17-23 (NaCl wt%), while that of vein quartz is relatively high compared to the former. Here is a ten-dency for the salinity of the ore-forming solution to increase with depth.