摘要
本文所研究的黄铁矿形成于两个成矿阶段。早期成矿阶段形成的黄铁矿不含金,其晶体形态主要为{210};晚期成矿阶段所结晶的黄铁矿以富含金为特征,主要形态为{100}、{100}+{210}、{320}等。黄铁矿化学成分中Co/Ni>>1,As/Sb>60以及显微硬度低于1000kg/mm^2,,也是矿区含金黄铁矿的显著标志之一。利用成矿阶段形成的黄铁矿所求出的产矿系数,可以很好地圈定矿体。其产矿系数大于60％者,为工业矿体。
The pyrite was formed in two mineralization stages in the study area. The py-rite formed in the early stage contains no gold, and the crystal form is mainly {210} The later one is characterized by abundant gold.The crystal forms of pyrite with {100}, {100} +{210},{320},etc.,Co/Ni》1 and As/Sb>60 in component of the pyrite, and less than 1000kg/mm2 in the microhardness are notable characteristics. The above-mentioned facts show that the orebodies can be delimitated by coefficient of productive ore obtained from pyrite formed during the metallageenic epoch orebody is delimitated according to the productive ore with coefficient of more than 60%.
关键词
金矿
黄铁矿
找矿
矿物学
硬度
pyrite, microhardness, coefficient of the product ore
