搜索结果: 1-15 共查到“矿床学与矿相学 Changes”相关记录17条 . 查询时间(0.204 秒)
An Exploration of Huizhou Architecture Connotation in the Background of Traditional Culture Changes
Ancient Huizhou Architecture Connotation Historical Changes Traditional Culture
2011/12/20
It is an important prerequisite for the profound understanding of traditional architecture culture to analyze the changes of traditional culture and master the development trails of local culture. The...
Investigation of Environment Changes about a Certain Village in Northern Part of China
Energy Use Environment Pollution Investigation Rural Areas
2011/12/20
With the development of society and economy, the issues of environment have becoming the focus of all around the world, especially in the developing countries. In China, on one hand, villagers' income...
Chemical Changes and Genesis of Secondary Minerals during the Alteration of Biotites from Ignimbrites in the Tazzeka Mountain (Morocco)
Alteration Biotite Chlorite Ignimbrite Illite Structural Formula
2011/12/6
Abstract: The Tazzeka Mountain, located approximately 20 km south of Taza, eastern Morocco, is composed of a Westphalian volcano-sedimentary complex. It contains rhyolitic ignimbrites with the followi...
Modification of Sepiolite by Treatment with Fluorides: Structural and Textural Changes
Activation Fluoride Activation Sepiolite Silicate Acidity
2011/12/8
Abstract: In the search for new applications of natural silicates, various F− treatments have been applied to sepiolite to increase its acidic properties and for use as a catalyst in reactions o...
Changes in the crystal structure of tsaregorodtsevite [N(CH3)4][Si2(Si0.5Al0.5)O6]2 on heating
Changes crystal structure tsaregorodtsevite [N(CH3)4][Si2(Si0.5Al0.5)O6]2 heating
2012/4/5
Tsaregorodtsevite[N(CH ) ][Si (Si Al )O ] isauniquefeldspathoidwithatetrame-thylammonium(TMA
)organiccationinanordered,sodalite-likeframeworkofortho-
rhombicsymmetry(I222)with a 8.984(3), b 8.937(2)...
Phosphorus speciation changes across the glass transition in polymerized alkali silicate glasses and melts
Phosphorus speciation glass transition alkali silicate glasses melts
2012/4/9
In situ, high-temperature Raman spectroscopy of Na,O.9SiO, glasses and melts with and without 2 mol% P,05 has been conducted to 1491 K (near the liquidus temperature). In the temperature range from 29...
Phase changes and amorphization of zeolites at high pressures: The case of scolecite and mesolite
Phase changes amorphization of zeolites high pressures scolecite mesolite
2012/4/6
Pressure-induced amorphous-phase transitions (amorphization) have been observed in framework silicates like quartz and feldspars. Asimilar crystalline to highly disordered solid phase transition is re...
Weathering of Chlorite in a Quartz-Chlorite Schist: I. Mineralogical and Chemical Changes
Alteration Chlorite Kaolinite Uranium Ore Deposit Vermiculite Weathering
2011/12/23
Abstract: The weathering of chlorite, one of the major minerals of the host rock in the uranium ore deposit at Koongarra, Australia, was examined by X-ray diffraction (XRD) analysis, scanning electron...
Changes in Particle Morphology During Illitization: An Experimental Study
Illitization Morphology Particle TEM
2011/12/29
Smectite was reacted at several temperatures between 200°C and 500°C to produce interstratified illite/smectite (I/S) with different proportions of expandable layers. Dispersed and sedimented products...
57Fe Mossbauer Spectroscopic Study of Structural Changes During Dehydration of Nontronite: Effect of Different Exchangeable Cations
Mossbauer Dehydration Nontronite Cation migration Tetrahedral site
2012/1/4
Dehydration-induced migration of different exchangeable cations toward the layers of nontronite has been studied by M鰏sbauer spectroscopy. As interlayer water is removed exchangeable cations migrate t...
Changes in the Properties of a Montmorillonite-Water System during the Adsorption and Desorption of Water: Hysteresis
Adsorption Desorption Hysteresis Infrared spectroscopy Montmorillonite Vapor pressure Water
2012/1/4
Samples of Na-saturated, Upton montmorillonite were prepared with different contents of water (H2O or D2O) by: (1) adsorption of water from the vapor phase at a specific value of p/p°, the relative hu...
Weathering of Basalt: Changes in Rock Chemistry and Mineralogy
Basalt Core-stone Element mobilization Goethite Halloysite Smectite Weathering
2012/1/10
The weathering of eastern Australian basalts, sampled from the rounded, hard, core-stone to the rind of softer weathered material, has been examined by bulk chemical analyses, thin section petrography...
Oxygen Isotope Changes during Mica Alteration
Mica Oxygen isotopes Potassium Recrystallization Saponite Weathering
2012/2/1
Oxygen isotope analyses (δO18) of micas that were artificially depleted in K+ indicate little or no isotope exchange during the transformation. The oxidation of iron in K-depleted, iron-rich micas by ...
STABILITY OF PARATHION ON ATTAPULGITE AS AFFECTED BY STRUCTURAL AND HYDRATION CHANGES
Attapulgite Dehydration Infrared spectroscopy Isomerization Parathion Scanning electron microscopy Thermal treatment
2011/11/15
Abstract--The structure and hydration status of attapulgite clay after heating at elevated temperatures and the stability of parathion on these clays was studied. Using infrared spectroscopy and scann...
Structural Changes in Analcites and Na-P Zeolites Caused by Cation Exchange at Room Temperature and Dehydration Under Controlled pH2O
Analcites Na-P Zeolites Dehydration pH2O
2011/11/16
Although zeolites are usually thought of as substances that undergo continuous water loss without structural change, there have been very few experiments to establish this fact.The present report cove...