Results 101 to 110 of about 4,580 (237)

Acidity of edge surface sites of montmorillonite and kaolinite [PDF]

open access: yes, 2013
Peer ...
Cheng, Jun   +5 more
core   +1 more source

Microstructural analysis and magnetic characterization of native and magnetically modified montmorillonite and vermiculite [PDF]

open access: yes, 2018
Two clay minerals of the similar 2 : 1 layer structure and chemical composition, vermiculite and montmorillonite, were studied using a wide spectrum of experimental methods in their original states and the magnetically modified states after mixing with ...
Bursík, Jiří   +7 more
core   +2 more sources

Links between environmental conditions and pedogenic phyllosilicates in Podzols in the Tatra Mountains (Poland) – I. Mineralogy

open access: yesGeoderma
Pedogenic minerals reflect the environmental conditions that prevailed during soil formation. The present study investigates the clay mineral composition of the fine clay fraction separated from four soil profiles in the Tatra Mountains, Poland.
Artur Kuligiewicz   +6 more
doaj   +1 more source

Iddingsite in the Nakhla meteorite: TEM study of mineralogy and texture of pre-terrestrial (Martian?) alterations [PDF]

open access: yes
Rusty-colored veinlets and patches in the Nakhla meteorite, identified as iddingsite, are pre-terrestrial. The rusty material is iddingsite (smectites + hematite + ferrihydrite); like terrestrial iddingsites, it probably formed during low-temperature ...
Gooding, James L., Treiman, Allan H.
core   +1 more source

Crystal structure and crystal chemistry of fluorannite and its relationships to annite [PDF]

open access: yes, 2007
This contribution deals about the crystal chemical characterization of fluorannite from Katugin Ta-Nb deposit, Chitinskaya Oblast’, Kalar Range, Transbaikalia, Eastern-Siberian Region, Russia. The mineral chemical formula is (K0.960Na0.020Ba0.001) (Fe2+2.
BRIGATTI, Maria Franca   +3 more
core   +1 more source

Adsorption of ciprofloxacin on 2:1 dioctahedral clay minerals

open access: yesApplied Clay Science, 2011
Abstract Frequent detection of antibiotics in natural environment and wastewater effluent requires systematic investigations of various clay minerals. Dioctahedral 2:1 clay minerals are major constituents of soil and sediments. Interaction of these clay minerals and ciprofloxacin (CIP) was studied.
Wang, Chih-Jen   +2 more
openaire   +2 more sources

Vanadium-rich Muscovite from Austria: Crystal Structure, Chemical Analysis, and Spectroscopic Investigations [PDF]

open access: yes, 2019
The crystal structure of a green, transparent, vanadium-rich muscovite-2M_1 (V_2O_3 = 11.35 wt.%, one of the highest amounts reported to date in muscovite) with the optimized formula (K_(0.94)Na_(0.06))M2(Al_(1.20)V^(3+)_(0.61)Mg_(0.12)Cr^(3+)_(0.07))T1 ...
Bernhardt, Heinz-Jürgen   +4 more
core  

Field trip guide and abstracts of the sepiolite symposium : june 7th, 2010, Madrid-Seville, Spain /2010 SEA-CSSJ-CMS Trilateral Meeting on Clays [PDF]

open access: yes, 2010
Depto. de Mineralogía y PetrologíaFac.
Cuevas, Jaime, ed. lit.   +4 more
core  

Study of the dehydroxylation-rehydroxylation of pyrophyllite [PDF]

open access: yes, 2010
Pyrophyllite is a raw material of significant interest due to its large number of applications. Most of these applications require a thermal transformation of pyrophyllite; this thermal transformation implies the release of structural OH groups and the ...
Durán Benito, Adrián   +6 more
core   +1 more source

Grain surface features and clay mineralogy of the quaternary sediments from Western Deccan Trap Region, India, and their palaeoclimatic significance [PDF]

open access: yesActa Geographica Debrecina. Landscape & Environment Series, 2011
Quartz sand grains obtained from a deeply gullied topography along the banks of two tributaries of River Pravara in Maharashtra (India) have been examined with a scanning electron microscope (SEM).
Veena U. Joshi
doaj  

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