Acid mine drainage where the ore is a sulfide mineral or is associated with pyrite. In these cases the predominant metal ion may not be iron but rather zinc, copper, or nickel. The most commonly mined ore of copper, chalcopyrite, is itself a copper-iron-sulfide and occurs with a range of other sulfides. Thus, copper mines are often major culprits of acid mine drainage. At some mines, acidic drainage is detected within 2–5 years after mining begins, whereas at other mines, it is not detected for several decades. In addition, acidic drainage may be generated for decades or centuries after it is first detected.
Out of a Center Which Is Neither Dead nor Alive Out of a Center Which Is Neither Dead nor Alive Out of a Center Which Is Neither Dead Nor Alive is the debut full-length album by Chicago-based post-metal band Minsk. Produced by Sanford Parker, the album was released in 2005 on At a Loss Recordings. In a review of the album, Allmusic's Greg Prato wrote: "Although the group has obvious roots in metal (as evidenced by tracks like 'Narcotics and Dissecting Knives'), Minsk has plenty of tricks up its sleeve, such as the sonic hodgepodge 'Holy Flower of the North Star' (a track custom-made for listening to on headphones)." Phil