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遵义黄家湾下寒武统底部Mo-Ni-PGE矿中铂族元素赋存形态分析及成因意义
引用本文:曾明果.遵义黄家湾下寒武统底部Mo-Ni-PGE矿中铂族元素赋存形态分析及成因意义[J].贵州地质,2007,24(2):147-150,141.
作者姓名:曾明果
作者单位:贵州省地质矿产检测中心贵州省地质科学研究所,贵州,贵阳,550004
摘    要:本项目采用6级不同化学物相形态系统,用化学试剂选择性提取和对比提取相结合的方法,研究了PGE元素及Au的物相分布特点.得出了Ru、Rh、Pd、Os、Ir、Pt及Au在各物相中的含量及相对比率,参照电子探针等对Mo、Ni硫化矿物分析成果,表明PGE在镍的硫化物相中丰度较高外,在可交换态、黄铁矿态及残渣态等中亦有一定分布,显示PGE元素以超微细粒分散赋存特点.表明矿体在沉积时未发生PGE元素的显著成矿分异,成岩期也未出现明显的再次富集作用.此矿床系我国黑色岩系中确凿伴生有PGE矿的典型代表,铂族元素赋存状态研究对其成因、寻找和开发有关键意义.

关 键 词:铂族元素  Mo-Ni-PGE矿  赋存状态  寒武系底部  贵州遵义
文章编号:1000-5943(2007)02-0147-04
修稿时间:2007-02-05

Occurred Appearance Analysis and Genetic Implication for the Platinoid of Mo-Ni-PGE Ores at Basement of Lower Cambrian in Huanjiawan, Zunyi, Guizhou
ZENG Ming-guo.Occurred Appearance Analysis and Genetic Implication for the Platinoid of Mo-Ni-PGE Ores at Basement of Lower Cambrian in Huanjiawan, Zunyi, Guizhou[J].Guizhou Geology,2007,24(2):147-150,141.
Authors:ZENG Ming-guo
Institution:Guizhou Geologic Institute, MLR Guiyang Supervision and Testing Center of Mineral Resources, Guiyang 550004, China
Abstract:This program introduces six - level different chemical phase morphology systems and studies the characteristics of PGE elements and Au phase distribution by the way that integrate selective and contrastive extraction of chemical reagents. Obtaining contents and relative ratio of ruthenium, rhodium, palladium, os- mium, iridium, platinum and gold in the phase, in view of the analytic achievements on sulfide minerals of molybdenum and nickel by electro microprobe, PGE show high abundance in sulphide phase of nickel and also has certain distribution in exchangeable, pyritic and debris status that demonstrate its feature of uhramicron disperse occurrence. It shows no distinctive metallogenic differentiation of PGE elements happened when ore bodies deposited and also no apparent re -concentration process during rock -forming period
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