论文部分内容阅读
一、问题的提出齐大山铁矿床系太古界前震旦纪古老变质岩系之沉积变质铁矿床。通称为鞍山式铁矿床。矿床特点是矿体厚大,层位稳定,条带结构,品位较低之贫铁矿。矿石分为闪石型和石英型两大类。闪石主要是透闪石和阳起石两种。透闪石、阳起石为钙镁硅酸盐矿物。此种矿物易风化,钙镁成分易流失。所以上部矿体,
First, the question raised Qi Dashan iron ore system Archean in the Archean predecessor of the ancient metamorphic sedimentary metamorphic iron deposits. Commonly known as Anshan-style iron ore deposits. The ore deposit is characterized by thick ore body, stable bedding, low-grade iron ore with low-grade structure. Ore divided into amphiboles and quartz two categories. Amphibole is mainly tremolite and Yangzheng two. Tremolite, Yang stone for the calcium magnesium silicate minerals. This mineral is easy to weathering, easy to lose calcium and magnesium ingredients. Therefore, the upper ore body,