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鲸鱼矿区是我国地下开采铬铁矿较早的一个矿区,在特定的地质条件下,所有的采矿方法都带有试验性。本文根据十多年的生产实践,仅就各采区贫化损失数值的变化及其与采矿方法的关系作番探讨,供以后工作中参考。一、矿区地质概况和开采技术条件矿区位于克拉码依市北东60公里,属托里县管辖。区内出露的地层为中上泥盆纪的海相沉积碎屑岩,岩性为砂岩和粉砂岩。区内中基性喷发岩、超基性岩和花岗岩等都非
The whale mine is one of the earliest mines in the country where chromite is mined underground. Under certain geological conditions, all mining methods are tentative. Based on more than a decade of production practice, this paper discusses only the changes of depletion losses and their relationship with mining methods in each mining area for future reference. I. Overview of mining geological conditions and mining technology Mining area is located 60 km north east of Crane Code City, is under the jurisdiction of Tori County. The exposed strata in the area are marine sedimentary clastic rocks of the Middle-Upper Devonian with lithology of sandstone and siltstone. The area of basic eruption rocks, ultrabasic rocks and granites are all non-