【摘要】 超基性岩体(橄榄岩)已经完全蛇纹石化.主要的蛇纹石结构的网状结构,砂钟结构等.渐进蛇纹石化作用的发育对纤蛇纹石石棉的形成是有利的。矿区蛇纹石化的特征之一是叶蛇纹石广泛发育,而且是在石棉主要矿化期中或之前的中温条件下形成的.蛇纹石化过程中,主要元素均显示活动性.部分Si是从相对富Si岩石带入蛇纹岩的.Mg和Al从围岩蛇纹石向蛇纹石脉迁移。Ca和Fe从原生矿物迁出,分别形成碳酸盐矿物和磁铁矿。更多还原

【Abstract】 The Ultramafic body-peridotite has undergone completely serpentinization. The serpentines are mainly of mesh texture and hourglass texture.The progressive serpentinization is favourable for forming of chrysotile asbestos. One of the characters of serpentization is that antigorite occurs frequently in this mine. It formed in intermediate temperature before or during chief mineralization of chrysotile asbestos. Major elements showed mobility during serpentinite from Si-rich rocks.Mg and Al tended to migrate from host serpentine veins. Ca and Fe removed out from original minerals to form separatly carbonate and magnetite.更多还原