The mineral composition of the microbial mats at La Banya spit was studied. The spit is formed by a narrow sand bar and a peninsula and is located south of the main body of the Ebro Delta (Tarragona, Spain). Although quartz was the predominant mineral component in all sampling sites, clay, feldspars, calcite, aragonite, halite, dolomite and gypsum were also found. An increase in both the fine m...

Zinc (Zn) in sludges from neutralisation of acidic emissions is a potential environmental pollutant and an element interest for recovery. Findings regarding the elemental mineralogical composition such wastes were aggregated literature examined together better understanding management options, with focus on Zn. Zn concentrations ranged 0.006%–22% 46 acid mine drainage sludges, 0.009%–43% 72 met...

Abstract. Soil dust aerosols are a key component of the climate system, as they interact with short- and long-wave radiation, alter cloud formation processes, affect atmospheric chemistry play role in biogeochemical cycles by providing nutrient inputs such iron phosphorus. The influence on these processes depends its physicochemical properties, which, far from being homogeneous, shaped regional...

The Egyptian black sand contains several types of altered ilmenite grains which have various magnetic susceptibility values, ranging from the strongly paramagnetic, such as ilmenite, to non-magnetic, rutile grains. relatively higher mass susceptibility, separated at 0.1, 0.2, 0.25, and 0.35 A using Frantz isodynamic separator, were investigated. Both brown investigated binocular microscope Came...

Deterioration of mineralogical and physical characteristics mineral raw materials results in the formation primary task for comminution processes—reduction size ore to obtain a material with certain granulometric composition, which turn is achieved by overgrinding and, consequently, an increase energy costs. The work aimed justify possibility selective disintegration assemblages polymetallic or...