the present study represents a first insight into the draa lasfar min (marrakech - morocco) to assess the degree of polymetallic pollution caused by anthropogenic activities (like mine extraction) and consequently the possible diffusion of heavy metals and to predict the risk of their mobility in the surroundings of the mine area. the edaphologic parameters ph and electrical conductivity (ec) w...

Sponsored by Defense Threat Reduction Agency Contract DSWA01-98-C-0176 The Mine The cooperating mine was the Morenci Mine operated by Phelps-Dodge in SE Arizona. The scale of the operation is illustrated below. The mine produces over 25% of all US copper. Three to five blasts are detonated daily. During July and August, 31% of the events in the USGS Mine Event List were from this mine. Regional...

Contents of metal elements in soil covered lead-zinc tailing mine should be determined after long-term exposured with ores, results compared the requirements contents National Standards order to measure application level land. The investigation this paper chose representative samples different altitude from multiple collected tailings mount Cheng County, Longnan City, Gansu Province China. XRF ...

Microseismic monitoring is a common tool in the mining production process; for supervising huge amount of microseismic data, effective analysis tools are necessary. In this study, results events at Maoping lead-zinc mine Yiliang County, Yunnan Province, and spatiotemporal distribution characteristics analyzed. We analyze temporal using fractal theory, combining change dimension with rock burst ...

The general features of several important mineral deposits polymetallic character in the Republic Northern Macedonia that have been actively exploited past are described. These include Buchim copper mine and Sasa, Zletovo Toranica lead-zinc mines, as well some ore prospects extensively explored for years. In addition, sites with known reserves, but which not yet at exploitation stage presented,...

Tailings dams in mining areas frequently experience the phenomenon of haphazard dumping and stacking a large amount tailings waste. Under influence surface runoff groundwater infiltration, heavy metals from waste can migrate to surrounding underground soil, resulting extensive metal pollution. To analyze pollution level ecological risk an abandoned lead–zinc mine dam, this study first employed ...

We model the self-organization of the MinE ring that is observed during subcellular oscillations of the proteins MinD and MinE within the rod-shaped bacterium Escherichia coli. With a steady-state approximation, we can study the MinE ring generically--apart from the other details of the Min oscillation. Rebinding of MinE to depolymerizing MinD-filament tips controls MinE-ring formation through ...

The main activity of the Talvivaara Mining Company Plc. is development and exploitation ofthe deposits in Sotkamo, Finland using bioheapleaching. comprise one largest known sulphide nickel resources Europe with 1004 million tonnes ore, sufficient to support anticipated production for a minimum 45 years. mine started late 2008 will have an annual output approximately 50,000 tons when it reaches ...

The vulnerability of water bodies to contamination within the neighbourhood of open mine cast environ cannot be overemphasized. Evidence of radioactive trace elements associated with the target minerals in the Plateau State (Nigeria) showed the extent of this vulnerability. In order to address this challenge, the radioactivity levels of water samples from mine ponds, streams, wells, and borehol...

Sarcheshmeh copper mine, with the final reserves of 828 million tons of sulfur ore and average grade of 0.74%, is known to be the largest open pit of Iran and most probably the second largest copper mine in the world. This mine is located in the seismotectonic zone of Central-Iran, and 23 Km away from the 150 Km long Rafsanjan active fault.In this study the vulnerability of the west wall of the...