Numerical solution of the problem of spatial flow in turbomachines

The formation age of ores from the Pebble Cu-Au-Mo giant deposit (Alaska, United States)

“…This process led both to redistribution of pri mary ores and to their hypogenic secondary enrich ment caused by mobilization of copper and gold from the scattered mineralization zones beyond the contour of the primary ore body [3] and from the eroded upper part of the deposit. Situation of the Pebble deposit, Alaska (a), the geological section of the deposit (b) and the distribution of Cu, Au, and Mo contents in the ore body (c), after [2,3].…”

“…This process led both to redistribution of pri mary ores and to their hypogenic secondary enrich ment caused by mobilization of copper and gold from the scattered mineralization zones beyond the contour of the primary ore body [3] and from the eroded upper part of the deposit. Situation of the Pebble deposit, Alaska (a), the geological section of the deposit (b) and the distribution of Cu, Au, and Mo contents in the ore body (c), after [2,3]. 1, 2, Late Cretaceous-Paleocene: 1, molasse with basalts, andesites, and rhyolites (Eocene: basalts, latites, dacites, rhyolites); 2, gabbros and diorites; 3-6, Late Cretaceous: 3, pyroxenites; 4, monzonites, monzodiorites, monzogabbros, and syenites; 5, sills of fine grained granodiorites; 6, bosses of large and mid grained quartz monzodiorites and granodiorites; 7, Triassic-Early Cretaceous: basalts, andesites, and sedimentary rocks; 8, boreholes; 9-12, Cu, Mo, and Au contents in the ore body: 9, Cu ≤ 0.2 wt %, Mo ≤ 0.02 wt %, Au ≤ 0.4 g/t; 10, Cu > 0.5-1.0 wt %; 11, Mo > 0.03-0.05 wt %; 12, Au > 0.5-1.0 g/t.…”

“…The samples given to us by Pebble Limited Partner ship company when visiting the deposit in 2010 [3] included porphyry like quartz diorites and monzodior ites which were altered to various degrees: poorly altered, without signs of sulfide mineralization (sample Pb 2); more intensively altered, with pyrite chalcopyrite (sam ple Pb 3A) and molybdenite (sample Pb 3B) mineral izations; quartz-muscovite altered and argillized, with pyrite-chalcopyrite and molybdenite mineralizations (Pb 4 and Pb 5). In the most intensively altered units of the examined quartz diorite-porphyries (sample Pb 5), the copper and molybdenum contents reach 0.47 wt % and 91 g/t, respectively.…”