Results 71 to 80 of about 3,944 (185)

Potassium fixation in soil size fractions of arid soils

Soil and Water Research, 2013
Amounts of potassium (K) fixed in soil fractions of 10 calcareous soils of southern Iran were measured to evaluate the contributions of different soil size fractions to K fixation.
Mahdi NAJAFI-GHIRI, Ali ABTAHI
doaj   +1 more source

Geochemistry of Ni in the Cretaceous-Tertiary succession Fiskeler (Fish Clay) at Stevns Klint (Denmark): cheto-smectite of the black marl [PDF]

Journal of the Serbian Chemical Society, 2006
The Cretaceus-Tertiary (KT) boundary at Stevns Klint (the Højerup succession), Fiskeler, consists of a thin red clay layer overlain by a thick one of black marl. These two layers are made up mainly from cheto-smectite and biogenic calcite. The black marl
PAVLE I. PREMOVIC, BRATISLAV Z. TODOROVIC, NIKOLA D. NIKOLIC, MIRJANA S. PAVLOVI, DRAGAN M. DJORDJEVIC, DEJAN T. DULANOVIC   +5 more
doaj  

Determination of chemical formula of a smectite

Communications, Faculty Of Science, University of Ankara Series B Chemistry and Chemical Engineering, 2006
Smectites are dominant clay minerals in bentonites. Each of montmorillonite, beidelite, nontronite, hectorite and saponite minerals is a member of smectite group. They are valuable mineral class for industrial applications because of their high cation exchange capacities, surface area, surface reactivity, adsorptive capacity and catalytic activity ...
openaire   +2 more sources

Polymer‐clay nanocomposite hydrogels with multiple responses to multiple stimuli

Responsive Materials
Hydrogels are widely studied for their stimuli‐responsive properties. They adapt to external stimuli, including physical, chemical and biological ones. To enhance adaptability in complex environments, multi‐responsive hydrogels have been developed, which
Ploypailin Milin Saengdet, Makoto Ogawa
doaj   +1 more source

Cretaceous-Paleogene boundary (KPB) Fish Clay at Højerup (Stevns Klint, Denmark): Ni, Co, and Zn of the black marl

Geologica Acta, 2009
The black marl of the Fish Clay at Højerup is mainly made up of biogenic calcite and cheto-Mg-smectite. We suggest that the formation of the smectite occurred during the latest Maastrichtian (or earlier) and that it represents a short period of rapid ...
P.I. PREMOVIC, B.Ž. TODOROVIĆ, M.N. STANKOVIĆ   +2 more
doaj  

Differentiation of substance composition in the Typical Agrochernozems (Haplic Chernozems) of the Western Ukrainian Forest-Steppe

Журнал Белорусского государственного университета: География, геология, 2017
The study found in the Wet Atlantic facies of the Forest-Stepper Сhernozems of Ukraine soil formation leads to the vertical redistribution of Chernozem soil substance and formation of the mineral soil profile differentiated to varying degrees by ...
Ihor Y. Papish
doaj  

Batch adsorption treatment of poultry slaughter-house wastewater using modified Tunisian smectite for organic pollutant removal. [PDF]

Poult Sci
Sayah N, Ben Jmaa S, Yahya K, Bendif H, Elfalleh W, Hamdi N, Jridi M.   +6 more
europepmc   +1 more source

Microstructure, Transport, and Mechanics of Compacted Clay Simulated at the 0.1 μm Scale (1400 Smectite Clay Particles) Using a Coarse-Grained Model with Explicit Counterions. [PDF]

J Phys Chem C Nanomater Interfaces
Zheng X, Bourg IC.
europepmc   +1 more source

<i>Saccharomyces boulardii</i> CNCM I-745 and smectite treatment for pediatric acute gastroenteritis in China: a systematic review and meta-analysis. [PDF]

Front Pediatr
Li T, McFarland LV.
europepmc   +1 more source

Experimental crystallization of analcime zeolite from clay and feldspar precursors. [PDF]

Sci Rep
Bello AM, Salisu AM, Amao AO, Alade OS, Mahmoud M, Al-Ramadan K.   +5 more
europepmc   +1 more source