( ( According ( to ( the ( disclosed method ) ) ) ) ( , ( ( ( a concentrate ) ( of ( sulfide minerals ) ) ) ( ( is ( ( coated ( onto ( ( ( a substrate ) , ) ( such ( as ( ( ( ( ( ( ( coarse ( ore particles ) ) , ) ( lava rock ) ) , ) gravel ) or ) rock ) ) ) ) ) ) ( ( ( containing ( mineral carbonate ) ) ( as ( ( a source ) ( of ( CO.sub .2 ) ) ) ) ) ( for ( the ( biooxidizing bacteria ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (VBG According) (PP (TO to) (NP (DT the) (ADJP (VBN disclosed)) (NN method)))) (, ,) (NP (NP (DT a) (NN concentrate)) (PP (IN of) (NP (JJ sulfide) (NNS minerals)))) (VP (VBZ is) (VP (VBN coated) (PP (IN onto) (NP (NP (DT a) (NN substrate)) (, ,) (PP (JJ such) (IN as) (NP (NP (JJ coarse) (NN ore) (NNS particles)) (, ,) (NP (NN lava) (NN rock)) (, ,) (NP (NN gravel)) (CC or) (NP (NN rock)))))) (S (VP (VBG containing) (NP (NN mineral) (NN carbonate)) (PP (IN as) (NP (NP (DT a) (NN source)) (PP (IN of) (NP (NNP CO.sub) (CD .2))))) (PP (IN for) (NP (DT the) (VBG biooxidizing) (NNS bacteria))))))) (. .)))
According to the disclosed method, a concentrate of sulfide minerals is coated onto a substrate, such as coarse ore particles, lava rock, gravel or rock containing mineral carbonate as a source of CO.sub.2 for the biooxidizing bacteria.
(ROOT (S (NP (JJ Ores) (NN rock)) (VP (VBZ contains) (NP (NP (NNS concentrations)) (PP (IN of) (NP (JJ valuable) (NNS minerals))))) (. .)))