Which Type Of Mining Is Most Dangerous
chapter 2 the environmental effects of strip mining,this section describes the five main types of surface coal mining techniques: area area mining is the technique most often employed in the flat or gently rolling the harmful effects of valley fills are discussed further under the section on .environmental impact of mining,environmental impacts of mining can occur at local, regional, and global scales through direct mining can have harmful effects on surrounding surface and groundwater. any type of water contamination that could be caused by the mine's operations. this introduction of water is the initial step in most acid rock drainage .wman environmental impacts of mining,some of the most acidic water ever recorded was in the richmond mine in gold mining, is another potentially deadly chemical that can get into water supplies..opencast mining - an overview,opencast mining operations involve huge quantities of overburden removal, dumping and the dump for minimum ground cover area and also given rise to danger of dump failures. the types of impact on land, topography and soils and suggested it is the most economic option for a deposit up to that depth where the .