Dispersion of antimony from oxidizing ore deposits

The Hercynian ore deposits from the Catalonian Coastal Ranges

reservas, similares procesos metalogenéticos habrian actuado en el Paleozoico Inferior del Brea. La deformación y el metamorfisme regional hercinicos no han actuado en este sector como un importante reconcentrador de menas, y la mayor parte de indicios epigenéticos Many mineralizations, showings and geochemical anomalies de edad tardihercinicaestán relacionados alas células hidrotermales have b...

Identification of Antimony- and Arsenic-Oxidizing Bacteria Associated with Antimony Mine Tailing

Antimony (Sb) is a naturally occurring toxic element commonly associated with arsenic (As) in the environment and both elements have similar chemistry and toxicity. Increasing numbers of studies have focused on microbial As transformations, while microbial Sb interactions are still not well understood. To gain insight into microbial roles in the geochemical cycling of Sb and As, soils from Sb m...

Rb-Sr dating of sphalerites from Mississippi Valley-type (MVT) ore deposits

Mississippi Valley-type (MVT) ore deposits arc epigenetic carbonate-hosted Pb-Zn deposits that contain galena, sphalerite, fluorite, bar&e, dolomite, calcite, and quartz. Although they are thought to form from basinal brines, their exact origins are still unclear, partly because of the scarcity of reliable geochronological data. Rb-Sr dating of sphalerites has recently been shown to be a promis...

Mineralogical and Petrological Investigation of Iron Ore Deposits in North- East of Isfahan

Mineralogical and Petrological Investigation of Iron Ore Deposits in North- East of Isfahan