露天采场简介

采矿遗迹简介

本矿区采矿于1959年开始，至2010年结束。矿体赋存于向南倾伏的铁山头向斜两翼，属鞍山式沉积变质铁矿床。矿石总储量 1.41亿吨，矿石平均品位31.5%。累计采出铁矿石3000余万吨，结存矿石量1.1亿吨。露天采矿工艺是穿孔—爆破—铲装—运输，矿石运往选矿厂进行选别，岩石运往废石场分层堆放。

本露天坑上口尺寸950*850米，底部尺寸50*50米。观景台海拔152米，距采场最低处垂直高度228米。台阶分层高度12米，最终边坡角46度。此露天坑对太古代地层划分及鞍山式铁矿成因和赋存规律具有重要的科教、研究意义。并于2011年被列为首云国家矿山公园采矿遗迹。

Brief Introduction of the Mining Remain The formal mining activities in the mining area started in 1959 and ended in 2010.The ore body occurs in the two wings of the iron mountain head that tilts to the south,and it belongs to Anshan-type sedimentary metamorphic iron ore bed. The total ore reserves in this area is 141 million tons,the average grade of the ore is 31.5%.The total recovery of the ore is over 30 million tons，and the balance of the ore is about to 110 million tons.The open pit mining process is perforation–blasting–shoveling–transportation.The ore is transported to the concentrator for sorting, and the rock is transported to Waste Stone Field for piling.

The upper size of this open stope is 950×850m,and the bottom size is 50×50m.The altitude of the Viewing platform is 152m,and the vertical height from the lowest part to it is 228m.The stratification height of the step is 12m,the ultimate slope angle is 46 degrees.This open stope is of great science,education,and research significance to the Archean stratigsaphic division and to the causes and mineraling rules of Anshan-type iron ore.In 2011,this open stope was listed as one of the most important mining remains of Shouyun National Mine Park.