Neves Corvo is an underground high-grade Cu–(Sn)–Zn mine, located in the Portuguese part of world-class Iberian Pyrite Belt (IPB), which currently producing copper, zinc, and lead concentrates. The operation owned by SOMINCOR, a subsidiary Lundin Mining, with maximum capacity 2.6 Mtpy for copper processing plant 1.0 zinc plant. From 2010 till end 2019, mine has accumulated 7.3 Mt waste rock 17 ...

A Standard Test Method (ASTM D 5744), for laboratory weathering using a humidity cell procedure, was conducted on two sulfide containing tailings samples from a metallurgical site in Ontario (Canada). To test the reliability of this method, results were compared with those of previous studies on the same samples. The mineralogy of the samples differs only by the addition of a small amount of na...

Metal mining generates a considerable amount of tailings. Arbuscular mycorrhizal fungi (AMF) have potential value for the ecological remediation tailings from metal mining, despite problems with these tailings, such as loose structure, high heavy-metal concentration and low organic matter microbial diversity. This review summarizes both application physiological functions AMF, plant symbiotic s...

The natural abundances of the stable isotopes of lead are used to identify natural and industrial sources of lead in the coastal waters of British Columbia, Canada. The (206)Pb/(207)Pb ratios, used to characterize the lead source, had values of approximately 1.24 for coastal oceanic water, approximately 1.22 for fjord waters receiving lead from mine tailings, and approximately 1.163 for waters ...

A typical South Crofty ore containing minor amounts of arsenopyrite and chalcopyrite (ore A) gives 65% overall recovery of cassiterite in the spiral circuit, overall enrichment ratios being about 25-35. Maximum recovery occurs in the size range 53-110 /Lm(Fig. 2). However, recently treated ore types (ore B) have been much richer in sulphides, yielding up to 30°" As in the recleaner table concen...

Historic tailings dams and their associated mine waste can pose a significant risk to human environmental health. The Wheal Maid site, Cornwall, UK, serves as an example of the temporal evolution storage facility after mining has ceased acid-generating subjected surficial processes. This paper discusses its designation contaminated land site reviews our current understanding geochemistry, miner...

The U.S. Department of Energy Office of Legacy Management is investigating alternatives to conventional cover designs for uranium mill tailings. A cover constructed in 2000 near Monticello, Utah, USA, was a redundant design with a conventional low-conductivity composite cover overlain with an alternative cover designed to mimic the natural soil water balance as measured in nearby undisturbed na...