TY - JOUR
T1 - Chemistry of smectitic and illitic phases in interstratified soil smectite
AU - Laird, D. A.
AU - Barak, P.
AU - Nater, E. A.
AU - Dowdy, R. H.
PY - 1991
Y1 - 1991
N2 - The objective of this investigation was to determine the elemental composition and mineralogy in interstratified smectite-illite from a typical upper Midwestern agricultural soil. A sample of soil clay (<2 μm fraction) from the Ap horizon of a Webster (fine-loamy, mixed, mesic Type Haplaquoll) pedon was fractionated by centrifugation to prepare various fine-clay samples. X-ray diffraction analyes indicated that interstratified smectite-illite was the only mineral present in significant quantities in the fine-clay samples. The elemental analyses revealed significant linear correlations for K vs. Si, Al, Fe, Ca, Ti, Mn, Zn and Mg. The smectitic phase was a high-charge, Fe-rich montmorillonite. The illitic phase consisted of dioctahedral, tetrahedrally charged elementary illite particles; it comprised at least 36% of the interstratified smectite-illite. -from Authors
AB - The objective of this investigation was to determine the elemental composition and mineralogy in interstratified smectite-illite from a typical upper Midwestern agricultural soil. A sample of soil clay (<2 μm fraction) from the Ap horizon of a Webster (fine-loamy, mixed, mesic Type Haplaquoll) pedon was fractionated by centrifugation to prepare various fine-clay samples. X-ray diffraction analyes indicated that interstratified smectite-illite was the only mineral present in significant quantities in the fine-clay samples. The elemental analyses revealed significant linear correlations for K vs. Si, Al, Fe, Ca, Ti, Mn, Zn and Mg. The smectitic phase was a high-charge, Fe-rich montmorillonite. The illitic phase consisted of dioctahedral, tetrahedrally charged elementary illite particles; it comprised at least 36% of the interstratified smectite-illite. -from Authors
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U2 - 10.2136/sssaj1991.03615995005500050050x
DO - 10.2136/sssaj1991.03615995005500050050x
M3 - Article
AN - SCOPUS:0026359894
SN - 0361-5995
VL - 55
SP - 1499
EP - 1504
JO - Soil Science Society of America Journal
JF - Soil Science Society of America Journal
IS - 5
ER -