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MINERALOGICAL COMPOSITION OF SOIL SAMPLES IN THE NELLIS DUNES RECREATION AREA
MINERALOGICAL COMPOSITION SOIL SAMPLES NELLIS DUNES RECREATION AREA
2011/11/7
Natural dust is primarily composed of mineral grains. A mineral is a substance having a crystalline internal structure and characteristic chemical composition or a definite range of composition that h...
FTIR spectroscopic study of palygorskite: Influence of the composition of the octahedral sheet
Palygorskite FTIR spectroscopy Structural formulae Octahedral sheet
2011/11/4
The influence of chemical composition to position and intensity of the absorption bands observed in the FTIR spectra of palygorskite has been studied by a detailed comparative study of six samples. Pa...
ON THE CHEMICAL COMPOSITION OF SEPIOLITE AND PALYGORSKITE
Chemical Composition Octahedral Sheet Octahedra cations Palygorskite Sepiolite
2011/11/4
Many studies of the chemical composition of sepiolite and palygorskite have been carried out using analytical electron microscopy (AEM). According to the literature, a compositional gap exists between...
Analysis and Evaluation on Chemical Composition of the Larch Bark
Bark Component Analysis Larch
2011/12/16
In this paper, Chinese larch bark and different areas of Korean larch bark chemical composition and quantitative analysis of active ingredients, and with several plant resources in the total flavonoid...
Physico-chemical characteristics and clay mineralogy composition of selected soils in arid and semiarid regions of Iran
Physico-chemical characteristics clay mineralogy composition Iran
2011/11/10
Knowledge of soil types and their properties is highly important in determining constraints and potential as well as better utilization of soils. Clay minerals are important fractions of the soil soli...
Composition of Saharan dust and its possible source regions –a review
Saharan dust source identification composition
2011/11/8
The Sahara is the strongest source on earth for mineral dust, supplying up to 109 t per year of material to the atmosphere (about 50 % of the total mineral dust burden). Saharan dust is subject to lon...
The Relationship between the Thermal Behavior of Clinoptilolite and Its Chemical Composition
Chemical Composition Clinoptilolite 020 Diffraction Peak Electron Microprobe Analysis Greece Santorini Zeolites
2011/12/5
Abstract: The matrix of the Pliocene volcaniclastics from the Akrotiri area of the Santorini island (Greece) is dominated by clinoptilolite. Smectite, occasionally illite-smectite, opal-CT, cristobali...
Composition of Clinoptilolite Formed from Volcanic Glass during Burial Diagenesis
Burial Diagenesis Cation Exchange Clinoptilolite Volcanic Glass Zeolite
2011/12/2
Abstract: The composition of clinoptilolite formed from volcanic glass was investigated from cuttings collected from the offshore MITI-Somaoki borehole, 52 km east of Soma City, Japan. Unaltered volca...
Experimental Alteration of Volcanic Tuff: Smectite Formation and Effect on 18O Isotope Composition
Alteration Mechanism of Volcanic Tuff Oxygen Isotope Exchange Smectite Tuff
2011/12/8
Abstract: Three samples of volcanic tuff were hydrothermally altered at ∼82°C in a soxhlet apparatus for periods from 745 to 2706 h. The samples correspond to partially altered specimens of volc...
The effect of temperature and bulk composition on the solution mechanism of phosphorus in peraluminous haplogranitic magma
temperature bulk composition solution mechanism phosphorus peraluminous haplogranitic magma
2012/4/1
Solution mechanisms of P in peraluminous glasses and melts in the system CaO-Na O-K O-Al O -
-P O have been examined with in-situ microRaman spectroscopy from ambient temperature toSiOnear 1200 ?C. ...
Experimental determination of CO2-H2O activity-composition relations at 600-1000 °C and 6-14 kbar by reversed decarbonation and dehydration reactions
CO2-H2O activity-composition relations reversed decarbonation dehydration reaction modified Redlich-Kwong
2012/4/1
Activity-composition relations in CO -H O solutions were determined at 6, 10, abroad temperature-fluid composition ranges from 70 reversed determinations of three simple-systemdecarbonation and dehydr...
New insights into organic-mineral particles: composition, properties and models of molecular structure
Analytical pyrolysis Computational chemistry Molecular modelling Soil organic-mineral particles Xenobiotic complexes
2011/11/8
Organic-mineral soil particles are formed and altered as a result of pedogenic processes and anthropogenic impacts on soils. They can be isolated from
bulk soil samples by physical disaggregation fol...
Stability of high-Al titanite from low-pressure calcsilicates in light of fluid and host-rock composition
high-Al titanite low-pressure fluid and host-rock
2012/3/31
Our recent paper noted that °∞some of the existing [M?ssbauer] studies (e.g., Fuchs et al. 1995) should be discounted due to th
fact that peak widths are less than the theoretical minimum imposed by ...
Subsolidus and melting experiments of a K-rich basaltic composition to 27 GPa: Implication for the behavior of potassium in the mantle
K-rich basaltic composition 27GPa Subsolidus and melting experiments
2012/3/30
SubsolidusandmeltingexperimentsofaK-richbasalticcompositionhavebeenper-
2wt%)at6¤C12.5GPaandabove22.5GPa,respectively.Bothpyroxeneandgarnetma
actasmainreservoirsforKinthemantle.Sanidine(KAlSi
O )or...
Composition, stability, and structure of a new member of the aenigmatite group, Na2Mg4+xFe3+2-2xSi6+xO20, synthesized at 13–14 GPa
Na2Mg4+xFe3+2-2xSi6+xO20 aenigmatite group 13-14GPa
2012/3/30
Anewphaseisostructuralwiththemineralsoftheaenigmatitegroup3Na
Mg FeSi O with x 0.25 0.5wassynthesizedat13¤C14GPawithasplit
2 4x 6x 2022x
sphereanvilapparatus(USSA-2000).Thestructure(for x 0.4)wasde...