新疆阿舍勒铜锌矿床矿石化学组分分带研究及意义

阿舍勒铜锌矿床是近年来发现的大型火山成因块状硫化物矿床之一。由于矿床成矿后遭受构造变质变形作用，使矿体的形态、产状发生了很大变化，所以矿体的分带结构也很难保留该类矿床所具有的理想分带型。因此，研究矿床分带性，对于了解矿床的成矿方式以及确定矿体的分布型式、产出状态、，进而指导找矿预测等方面均具一定意义。

Chemical components zoning of ores in the Ashele copper-zinc deposit, Xinjiang, and its implication

By means of zonal succession, content ratios and factor zonality, the authors studied zonation of ore components in the Ashele copper-zinc massive sulfide deposit. Some understanding has been drawn from the research: (1) with the overlying spilite as the core, the orebody occurs as an overturned syncline; vertically, from the bottom to top of the massive sulfide lens, the ore components show zonation of Sn, Mo, Co, Cu, Bi-Au, As, Sb, Ag-Pb, Zn, Hg and Ba; (2) the orebody occurring on the normal limb of the syncline has not been completely disclosed in that the chalcopyrite-pyrite and pyrite beds characterized by rich Mo, Co, Sn and Bi were not found, suggesting that further prospecting work can be done toward the depth; (3) the massive sulfide deposit was formed through the discharging of hydrothermal fluid from the near-surface channel at the southern part (south of 4th line) to a depression in the north; as a result, it exhibits from south to north the primary zoning of altered pipe-massive polymetallie sulfide ore (4th-lst line) massive sphalerite-chalcopyrite-pyrite ore massive chalcopyrite-pyrite ore (5th-9th line).