摘要
本文论述了庞家河金矿矿石中的主要金矿物和载金矿物，金在矿石中的配分和赋存状态．矿石中金矿物主要有自然金银金矿；主要载金矿物是黄铁矿、毒砂和粘土质矿物（合绢云母和少量粉砂质）；金主要为次显微金，粒度多在０．０２５～０．１μｍ之间，呈小圆球状及链状的独立金矿物（自然金）充填在黄铁矿、毒砂的微裂隙或沉淀在晶面上或吸附在晶体边缘。在氧化或半氧化矿石中，可见到一部分可见金或显微金。
Main gold and gold oather mineral,Patition and host state of the gold in pangjiahe gold ore his discuss in this paper. Gold mineral are mainly native gold and electrum,gold carriermineral are mainly pyrite,arsenopyrite and clayey mineral(with sericite and alittle salty) in gold ore. Gold is mainly submicroscopic gold, size range is mainly between 0. 025-0. 1μm, spherulelike and chain-like gold mineral (native gold) is filled in harofissure or precipitated on crystal face or adsorbed at crystal rim of the pyrite and arsennopyrite. A Part of visible gold of micro-goldare found in oxidized ore or semioxidized ore.
出处
《华东地质学院学报》
1996年第3期224-230,共7页
Journal of East China Geological Institute
关键词
金矿床
金
赋存状态
浸染型矿床
submicroscopic gold
host state
pyrite
native gold
