埃尔凯姆公司的诺斯克·奈弗林分公司正在开采一个世界上为数不多的霞石正长岩矿。该矿地处挪威北极圈Alta湾的一个岛上。本文分两部分:第一部分记述开采地段的地质情况、地下开采方法以及干法选矿情况。第二部分包括商品性的品级分类、产品用途、市场、价格、运输以及市场预测。 Elkham’s Northknehneflin subsidiary is mining one of the few nepheline syngenetic rock mines in the world. The mine is located on an island in the Norwegian Arctic Circle of Alta Bay. This article is divided into two parts: The first part describes the geological conditions of the mining area, underground mining methods and dry processing conditions. The second part includes commodity grade classification, product use, market, price, shipping and market forecast.