X-ray diffiractograms cleared the predominance of dioctahedral montmorillonite, with few chlorite, and or /b-axis disordered kaolinite. II- lite was found as a binary interstratified mineral with montmorillonite or as a ternary interstratified mineral with montmorillonite and chlorite. The presence of interstratified minerals causes the merging of basal spacings at below 7A plateau. Some substitution of Fe3+ for Al in the predominant montmorillonite cleared in (1) the infra-red spectra by the absorption band of (Fell-, Al , OH-bending) at 880 cm-1 after removing of calcite, (2) the D.T.A. by the endothermic peak of dehydroxylation at 515°C.
AHMED, S. H., & EL-TAWEL, B. E. (1994). CLAY MINERALOGY OF THE ALLUVIAL SOIL OF UPPER EGYPT. Egyptian Journal of Agricultural Research, 72(3), 589-598. doi: 10.21608/ejar.1994.451625
MLA
SAYED H.H AHMED; BOUTHINA E. EL-TAWEL. "CLAY MINERALOGY OF THE ALLUVIAL SOIL OF UPPER EGYPT", Egyptian Journal of Agricultural Research, 72, 3, 1994, 589-598. doi: 10.21608/ejar.1994.451625
HARVARD
AHMED, S. H., EL-TAWEL, B. E. (1994). 'CLAY MINERALOGY OF THE ALLUVIAL SOIL OF UPPER EGYPT', Egyptian Journal of Agricultural Research, 72(3), pp. 589-598. doi: 10.21608/ejar.1994.451625
VANCOUVER
AHMED, S. H., EL-TAWEL, B. E. CLAY MINERALOGY OF THE ALLUVIAL SOIL OF UPPER EGYPT. Egyptian Journal of Agricultural Research, 1994; 72(3): 589-598. doi: 10.21608/ejar.1994.451625
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