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明塔克矿是一个大型铁燧岩露天矿,位于明尼苏达州北部梅萨比铁矿区的中心。根据计划矿山向附近城镇的方向开发,促进了对场外爆破效应的深入研究,从而导致爆破实践的许多改善。每次爆破至少要在附近两个城
Mintak Mine is a large open-taconite open pit mine located in the heart of the Mesa-Pyr mine in northern Minnesota. According to the planned development of mines to the nearby towns and cities, further study on the blasting effect outside the field has been promoted, resulting in many improvements in blasting practices. Each blasting at least two cities in the vicinity