中文摘要：

为了学习海地板 exhalative 的特征， Bainiuchang polymetallic 上的热水的重迭扔的沉积 andmagmatic ，花岗石的 REE 作文，主人岩石和矿石被从 theirREE 作文看的 ICP-MS.As 系统地分析了，花岗石显示出明显的否定 Eu 异例和弱否定 Ceanomalies.According 到他们的 REE 特征，主人岩石从 sea-floorexhalative 沉积部分被导出。以他们的 REE 作文，矿石能被划分成二 groups:onegroup ，样品从离开 theBozhushan 花岗石底盘相对远的 Baiyang 片断是镇定的，拥有积极 Eu 异例或没有 Eu 异例和否定 Ceanomalies ，显示那形成矿石的热水的液体是相对减少的，它的温度而且比 250 ℃高，当矿石在古老的海底上被猛抛时，积极 Eu 异例的同时发生的存在和否定 Ce 异例显示与热水的液体的海水的小数量的对流混合发生了。另外的组，样品从 Chuanxindong 和 Duimenshan 主要是镇定的分割近的 theBozhushan 花岗石底盘， magmatic 有类似的 chondrite-monalized REE 分发模式到那些。但是总体上，两个的 REE 特征组织逐渐地从 Bozhushan 花岗石底盘开始的变化。基于花岗石，主人岩石和矿石的 REE 特征，形成矿石的金属似乎来自几不同来源，这被建议。

英文摘要：

In order to study the characteristics of sea-floor exhalative sedimentary and magmatic hydrothermal superimposition on the Bainiuchang polymetallic deposit, the REE compositions of the granites, host-rocks and ores have been systematically analyzed by ICP-MS. As viewed from their REE compositions, the granites show obvious negative Eu anomalies and weak negative Ce anomalies. According to their REE characteristics, the host-rocks were derived partly from sea-floor exhalative sediments. In terms of their REE compositions, the ores can be divided into two groups： one group, of which the samples were collected from the Baiyang segment relatively far away from the Bozhushan granite batholith, possesses positive Eu anomalies or no Eu anomaly and negative Ce anomalies, indicating that ore-forming hydrothermal fluid was relatively reductive and its temperature was higher than 250~C. Furthermore, the coinstantaneous presence of positive Eu anomalies and negative Ce anomalies indicate that the convective mixing of a little amount of seawater with hydrothermal fluid had happened while ores were precipitated on ancient sea floor. The other group, of which the samples were mainly collected from the Chuanxindong and Duimenshan segments near the Bozhushan granite batholith, has similar chondrite-monalized REE distribution patterns to those of the magmatic rocks. But as a whole, the REE characteristics of both groups change gradually starting from the Bozhushan granite batholith. Based on the REE characteristics of the granites, host-rocks and ores, it is suggested that the ore-forming metals seem to have come from several different sources.