In this paper, a step-by-step method is presented to design pillars with square shape in room and pillar mines with regard to existing pillars in the active mining zone (AMZ) and estimating abutment loads according to experimental equations.
The geoarchaeological results indicate that from the Late Iron Age onwards fire was used in different contexts, and hence a spatial differentiation into a mining zone (1300 1450 m a.s.l).l
The spokesman said about 1,700 French citizens were living in Niger, with dozens operating in the mining zone.
PARIS — Seven people connected to a French nuclear company in Niger were kidnapped early Thursday near the country's uranium-rich mining zone.
An international team of archaeologists is scrambling to save what it can before the end of this month, when it must vacate the central mining zone, at the heart of the Buddhist complex.
Chris Taylor, 64, and her husband, Shirley, 70, retired hospital workers who own a century-old 200-acre farm in the mining zone, drafted a contract with Western Kentucky last year, stipulating that once mining is completed, their land has to be made tillable.
Some edaphic factors were investigated, including heavy metal concentrations, in three mine tailings from a semiarid mining zone in Southeast Spain.
The new modified three-step BCR flow-based sequential extraction method was satisfactorily applied for arsenic fractionation in real agricultural soil samples from an arsenic-contaminated mining zone to evaluate its extractability.
The Times points out that a single mine (well, really a mining zone) in Baotou, in China's Inner Mongolia, produces half of the world's rare earths.
The 1 m resolution LiDAR data highly improve the resolution and capabilities for recognition and interpretation of canals, water reservoirs and mining zones.
