Projects in the mining industry are undertaken with the objective of maximizing economic value, which is near-universally measured by the Net Present Value (NPV), considering all capital expenditure and operating cash flow. This industry is usually considered high risk because of historically volatile commodity prices (directly impacting revenues) and the fact that very large capital expenditur...

An important, but largely neglected hydrogeological issue is the timing of mine water sampling during mining and after mine closure. Significant temporal and spatial changes in the “ageing“ of information, neglected effects of dynamic changes in the quality of mine water and its resources are causing severe degradation of information from mine water analyses and their possible misleading interp...

introduction development of natural resources and mining activities are prerequisite for economic and industrial growth in many countries. in many cases, such mining areas lie within residential or agricultural lands or natural habitats intensifying the contradiction between land use and environmental protection. different components of mining activities including exploration, extraction and pr...

The increases above 1975 levels for acid mine drainage and subsidence for the years 1985 and 2000 based on projections of current mining trends and the National Energy Plan are presented. No increases are projected for acid mine drainage from surface mines or waste since enforcement under present laws should control this problem. The increase in acid mine drainage from underground mines is proj...

Acid mine drainage (AMD) is among the major environmental concerns related to mining activity and often causes complete degradation of affected ecosystems during and/or after closure [...]

Estimation of ore reserves is one of the most critical aspects of mining geology. The accurate assessment of the tonnage and grade of run of mine may be the difference between a healthy profitable operation and an expensive early mine closure. The first step in ore reserve estimation is to determine the boundary of ore body or ore/waste contacts. This paper presents a specific mining applicatio...

Abstract Mine plans usually need to consider the tonnage that must be stored in dumping area and machine hours required place material there as a constraint. The Department of Mining Engineering Mineral Economics was involved project, which whole mine planning procedure had start with dump. To dump, formulating targets for plan did require some adaptation standard procedure. After proper set-up...

In western United States, both mine reclamations and renewed mining at previously abandoned mines have increased substantially in the last decade. This increased activity may adversely impact bats that use these mines for roosting. Townsend’s big-eared bat (Corynorhinus townsendii) is a species of conservation concern that may be impacted by ongoing mine reclamation and renewedmineral extractio...

This study investigated dispersion and bioaccumulation of mining-related elements from an open-pit olivine mine at Seqi in Southwest Greenland (64° N) using lichens (Flavocetraria nivalis), seaweeds (Fucus vesiculosus), mussels (Mytilus edulis) and fish (Myoxocephalus scorpius). The mine operated between 2005 and 2009, and samples were taken every year within a monitoring area 0-17 km from the ...

Each mining project goes through the same life-cycle, from prospecting and exploration to closure post-closure periods. This prompts question whether of a mine constitutes end its life-cycle or decommissioned can be employed for some other purpose. Best-practice references indicate that there are many viable options. In our opinion, production service water is one such option. Laboratory resear...