摘要
本文利用EPMA、SEM/EDX、及TEM/EDX等分析技术,对我国某些卡林型金矿中金的赋存状态进行了研究。这些分析方法的综合运用,明确揭示出所谓的“不可见金”是由几十埃到几千埃不同粒级构成的被包裹于黄铁矿、含砷黄铁矿、粘土及石英等载金矿物中的超微金粒,并在粘土中首次获得45(?)的自然金颗粒。此研究结果,为评价金的存在形式提供了科学依据。
In this paper, the occurrence of ultramicro gold in certain carlin-type gold ore have been studied with the help of EPMA, SEM/EDX and TEM/ EDX. It shows,from synthetical application of. analytical methods,that the so-called invisible gold is composed of a series of ultamicro gold particles (about tens to thousands of A) encapsulated commonly in pyrite, arsenic pyrite,quartz and clay mineral et al.An ultramicro gold particle of 45A in size is observed in clay mineral in the first time, which provides scientific information for evaluating the gold occurrence.
出处
《黄金》
CAS
北大核心
1991年第7期1-5,共5页
Gold
关键词
超微金
赋存状态
电子显微术
ultramicro gold
occurrence
electron microscopy
