MINERALOGICAL AND CHEMICAL COMPOSITION OF THE SILT FRACTION OF SOME SOILS, SOIL-BUILDING ROCKS, AND DISPERSED MATERIAL OF RIVERS IN THE KURA-ARAXES LOWLANDThe physical, mineralogical, and chemical properties of
Kiscellian marine silt termed »sivica« is widely developed in Tertiary basins of Eastern Slovenia. Chemical composition is rather uniform and reflects the dominance of filosilicates (mainly illite/muscovite, chlorite and montmorillonite) and carbonates. PAAS normalised REE and Y abundances are ...
Composition and physico-chemical properties of bottom sediments in the southern part of the Bratsk Reservoir (Russia)The paper presents the results of studies of bottom sediments taken from the southern part of the Bratsk Reservoir. The following analyses have been conducted: trace element analysis,...
Composition of mixtures of alfalfa (Medicago sativa L.) and orchardgrass (Dactylis glomerata L.) were studied after their herbage had been mixed by weight into seven different proportions: 100% alfalfa 0% orchardgrass, 80% 20%, 65% 35%, 50% 50%, 35% 65%, 20% 80%, and 0% 100%,...
chemical compositioncrystal structurerefinementcell parameterspleochroismMossbauer spectroscopyXRD powder diffractionPresent work characterizes tourmaline from one of the major pegmatite fields in Zambia - the Lundazi pegmatite belt.lt;brgt; Microprobe analysis gave (wt%): SiOlt;subgt;2lt;/subgt; 34.65...
Braitsch, O.: Salt deposits, their origin and composition, 297 pp. Berlin: Springer-Verlag 1971. Google Scholar Breger, I.A. (Ed.): Organic geochemistry, 658 pp. New York: Macmillan 1963. Google Scholar Briggs, L.I.; McCulloch, D.S.; and Moser, Frank: The hydraulic shape of sa...
This variation is due to a combination of several factors such as particle shape, gradation, and chemical composition [18]. Based on the grain size distribution fly ashes can be classified as sandy silt to silty sand. Particularly, Indian coal ashes are predominantly of silt-size, with some ...
This means the community of organisms in that system meets certain criteria for species composition, diversity, and adaptability, often compared to a reference site that is a benchmark for integrity. As such, biological integrity indices are designed to integrate the relationships of chemical and ...
The article focusses on determining the chemical composition of the organic fractions in the pottery and the origin of the carbon. For this aim we used the nuclear magnetic resonance (NMR) method to identify the chemical compounds in the food residue and in the pottery matrix. As an example ...
WTS composition presents high alumina (Al2O3) and silica (SiO2) content, possibly explained by the composition of raw water, which has percolated in a region corresponding to feldspars, quartz, and shale. The Guarda’s region, location of the WTP, consists of residual reliefs, quartzite, and...