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Stability of Mg-sulphate minerals in the presence of smectites: Possible mineralogical controls on H2O and nutrient cycling on Mars
Stability Mg-sulphate minerals presence of smectites mineralogical controls H2O nutrient cycling Mars
2012/3/30
Hydrated sulphate minerals, including kieserite (MgSO4·H2O), gypsum (CaSO4·2H2O), and bassanite (CaSO4·~0.5H2O), have been detected on Mars (Gendrin et al., 2005; Wray et al., 2010), and polyhydrated ...
Stability Analysis of Highway Tunnel Portal Slope in Shiyan Area
Highway Tunnel Landslide Mechanism Shiyan Area Stability Analysis
2011/12/20
Under the control of the tow-Yun fracture, the geological conditions are complicated and the rock strata is broken in Shiyan area ,in the northwest of Hubei province, and the rock mass is weathered in...
Influences of Horizontal Initial Stress and Slope Angle on Stress Distribution in Mountains and Cavern Stability
Damage-Fracture Model Initial Lateral Stress Numerical Simulation Slope Angle Stability of Surrounding Rock
2011/12/16
Inbetween the many factors, which will influence the distribution character of initial stress in a mountain, different angle of mountain slopes and horizontal geostress will have important effects on ...
Research for Raising Data Stability of the Digital Leather Thickness Gauge with Capacitive Sensor
Capacitive Sensor Data Stability Displacement Leather Thickness Gauge
2011/12/14
Low data stability exists in the measurement of the developed leather thickness gauge (MH-YD1). After studying the whole working principles and a comprehensive analysis of experimental results, we fin...
Research on the Cusp-Catastrophic of the Stability of the Red Beds Landslide in Western Yunnan
Catastrophe Instability Model Firs Drought and Post-Floods Pore Water Pressure Red Layer of the Landslide
2011/12/20
The research is for the firs floods and the post-drought in Yunnan area in 2010. The strong rainfall and the hole pressure change are the red rock landslide most essential factor, so an apex post-modu...
Preparation and properties of mesoporous silica/bismaleimide/diallylbisphenol composites with improved thermal stability, mechanical and dielectric properties
thermosetting resins bismaleimide meosoporous silica dielectric properties structure-property
2011/12/14
New composites with improved thermal stability, mechanical and dielectric properties were developed, which consist of 2,2!-diallylbisphenol A (DBA)/4,4!-bismaleimidodiphenylmethane (BDM) resin and a n...
Study on the Stability of Underground Constructions with Different Locations in Alpine and Gorge Region
Different Location Initial Stress Jointed Rock Mass Mountain Slope Angle Numerical Analysis Underground Construction
2011/12/15
The reasonable selection of a location for underground structures has a great influence on the stability of surrounding rock masses, especially when the construction is built in the alpine and gorge r...
Synthesis and thermal stability of hydrotalcites based upon gallium
Hydrotalcite Hydrocalumite Gallium Synthesis Thermal stability
2011/11/10
Hydrotalcites based upon gallium as a replacement for aluminium in hydrotalcite over a Mg/Al ratio of 2:1 to 4:1 were synthesised. The d(003) spacing varied from 7.83 ?for the 2:1 hydrotalcite to 8.15...
Synthesis and thermal stability of hydrotalcites containing manganese
Charmarite Rhodochrosite Hydrotalcite Hydrocalumite Synthesis Thermal stability
2011/11/10
The hydrotalcite based upon manganese known as charmarite Mn4Al2(OH)12CO3·3H2O has been synthesised with different Mn/Al ratios from 4:1 to 2:1. Impurities of manganese oxide, rhodochrosite and bayeri...
Enhanced Thermal Stability of Al-Pillared Smectites Modified with Ce and La
Bentonite Ce La Pillared Clays
2011/12/6
Abstract: A commercial bentonite (primarily smectite) from Fischer Scientific Company (F bentonite) and a natural bentonite from Peru (P bentonite) were used in the preparation of pillared clays with ...
On the stability relations of hydrous minerals in water-undersaturated magmas
stability relations hydrous minerals water-undersaturated magmas
2012/4/1
Reaction of a hydrous mineral with a water-bearing silicate melt is analyzed in terms of the sto-
ichiometry of (in)congruent dissolution. Application of the law of mass action provides an explana-
...
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 ...
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...
Stability of high-Al titanite from low-pressure calcsilicates in light of fluid and host-rock composition
Titanite of variable Al composition
2012/3/30
TitaniteofvariableAlandFcontentwasfoundingranulite-toamphibolite-facies
calcsilicatesinCentralDronningMaudLand,Antarctica.ThehighestobservedAlcon-
tentcorrespondstoanX
[ Al/(Al Ti)]of0.53.Previousl...
Stability of n-Butylammonium Vermiculite in Powder and Flake Forms
Adsorption Degradation Interaction Intercalation Complex Interstratified Phase n-Butylammonium Organo-Vermiculite Particle Size Vermiculite
2011/12/9
Abstract: Interaction between n-butylammonium (BA) chloride and vermiculite from Santa Olalla (Spain) has been studied in large flake (5 × 5 × 0.1 mm) or ground powder (≤80 µm) samples. The diff...