论文部分内容阅读
分析了黔西南地区板其、丫他及戈塘等卡林型金矿床的(La/Yb)N、(La/Sm)N、∑REE及LREE/HREE等稀土元素的含量及参数特征。结果表明,该区金矿床相对富集LREE;该区戈塘金矿具有明显的MREE富集及正Eu异常的特点,表明成矿热液应该是一种还原性流体,来源于深部或至少经历过对富含斜长石源区的水-岩反应矿区容矿地层的沉积过程;对比滇黔桂地区玄武岩稀土元素的特征参数,发现金矿石稀土元素的特征参数部分类似于地层岩石,大多数类似于岩浆岩,说明成矿物质主要来源于岩浆岩,部分来自地层岩石。
The contents and parameters of (La / Yb) N, (La / Sm) N, ΣREE and LREE / HREE and other rare earth elements in Baili, Ya’ta and Getang-like Carlin-type gold deposits in southwestern Guizhou were analyzed. The results show that the gold deposits in this area are relatively enriched in LREE. The Getage gold deposit in this area has obvious characteristics of MREE enrichment and positive Eu anomalies, indicating that the ore-forming hydrothermal fluid should be a reducing fluid derived from deep or at least experienced Over the sedimentary process of the ore-hosting strata in the water-rock reaction zone rich in plagioclase source area. Comparing the characteristic parameters of the rare earth elements in the basalts in Yunnan, Guizhou and Guangxi, it is found that the characteristic parameters of the REE of the gold ore are similar to those of the stratigraphic rocks, Similar to magmatic rocks, the ore-forming material is mainly derived from magmatic rocks and partly from formation rocks.