المساهمة في دراسة الخصائص الفيزيوكيميائية لعينات من رمل الكثبان و الطين لمنطقة "المتقدمة"بالحجيرة
Résumé: The main objective of this work is to contribute the physical and chemical study of the dunes and mud sands of Al-hujaira region_willaya of Touggourt_ in the southeast of Algeria. The following physical analyses were adopted ; X-ray energy despersive spectroscopy (EDX), X-ray deffractoin (XRD), Fourier transform infrared absorption sperctroscopy (FTIR), and grain morphology study using SEM scanning electron microscopy.The X’pert HighScore program was chosen to process X-ray data. It was found that the dunes of studies area ara caracterized by smooth granules with low and wellrounded regularity, and it consists mainly of crystalline compounds, witch are quartez-α at concentration of 84.33%, and aluminum oxide at concentration of 6.32%, in addition to other compounds in small proportions represented in magnesium oxide with a percentage of 5.53% , and calcium oxide by 3.81%. As for the clay samle for the same region, it showed opaque luster grains, with a coarse texture and low balling . It consists mainly of quartz, phase alpha(α), with a concentration of 51.49% ,aluminum oxide at a concentration of 15.95% , Calcium oxide 14.43%, hematite 9.50% , magnesium oxide 4 .84%, and potacium oxide was 3.78%.
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