湖南界牌岭花岗斑岩的蚀变过程与稀有稀土金属成矿

林晓青, 饶灿, 覃莉茜, 吴润秋, 王琪

Alteration processes and rare (earth) metal mineralization of Jiepailing porphyry deposit, Hunan Province

Xiaoqing Lin, Can Rao, Lixi Qin, Runqiu Wu, Qi Wang

表7 界牌岭蚀变花岗斑岩、蚀变围岩中闪锌矿?黄铜矿斑点伴生体的电子探针化学成分(wt.%)

Table 7 Representative electron microprobe chemical compositions of sphalerite?chalcopyrite dots mineral association from the altered rock in Jiepailing (wt.%)

黄铜矿斑点 与黄铜矿斑点伴生的闪锌矿 蚀变花岗斑岩 蚀变围岩 S 34.92 35.39 33.99 32.98 33.73 34.03 33.87 33.66 Zn 3.00 3.30 63.13 61.90 64.05 64.38 64.04 65.03 Fe 28.18 29.41 3.02 5.05 1.46 1.22 0.77 0.56 Cu 33.05 31.97 0.37 0.32 0.08 1.12 0.65 0.38 As 0.19 0.15 0.02 - - 0.01 - 0.02 Sb 0.03 - 0.02 - - 0.03 0.03 0.02 Co 0.05 0.02 0.01 0.03 Se - - - - 0.02 0.01 - 0.01 Total 99.42 100.27 100.53 100.25 99.33 100.80 99.36 99.70 ZnS* 94.31 91.05 97.38 96.29 97.74 98.48 FeS* 5.14 8.48 2.49 2.06 1.298 0.96 CuS* 0.55 0.47 0.12 1.65 0.958 0.56