搜索结果: 1-10 共查到“地质学 Ordered”相关记录10条 . 查询时间(0.219 秒)
Crystal Structure Refinement and Mossbauer Spectroscopy of an Ordered, Triclinic Clinochlore
Cation Ordering Chlorite Clinochlore Crystal Structure Mossbauer
2011/12/22
Abstract: The crystal structure of a natural, ordered IIb-4 triclinic clinochlore has been refined in space group C1¯ from 4282 unique X-ray intensity measurements of which 3833 are greater than ...
The structure of ordered and disordered lead feldspar (PbAl2Si2O8)
The structure lead feldspar (PbAl2Si2O8)
2012/4/9
The Al-Si configuration in ordered and disordered lead feldspar (PbA12Si20g) has been investigated by single-crystal X-ray diffraction, Single crystals synthesized from meltand cooled from T= 1280to 1...
Synthesis, characterization, and energetics of solid solution along the dolomite-ankerite join, and implications for the stability of ordered CaFe(CO3)2
Synthesis characterization energetics dolomite-ankerite join implications CaFe(CO3)2
2012/4/6
Samples along the dolomite-ankerite join weresynthesized using a piston-cylinder ap-paratus and the double-capsule method. Some ofthe ankerite samples maybedisordered. Thermal analysis and X-ray diffr...
Effect of Prolonged Aging on the Transformation of Short-Range Ordered Aluminum Precipitation Products Formed in the Presence of Organic and Inorganic Ligands
Aging Gibbsite Montmorillonite Noncrystalline Al products Pseudoboehmite
2011/12/29
More than 40 samples of Al precipitation products formed in the presence of organic (aspartic, oxalic, citric, tartaric, malic, salicylic, and tannic acid, and acetylacetone) and inorganic (chloride, ...
Effect of Tartaric Acid and pH on the Nature and Physicochemical Properties of Short-range Ordered Aluminum Precipitation Products
Aggregation Aluminum hydroxides Crystallization Porosity Precipitation Surface area Tartaric acid
2011/12/31
The influence of tartaric acid and pH on chemical composition, morphology, surface area, and porosity of short-range ordered Al precipitation products was studied. Samples were prepared (1) at pH 8.0 ...
Ordered and Disordered Organic Intercalates of 8.4-A, Synthetically Hydrated Kaolinite
Dimethylsulfoxide Formamide Hydrate Infrared spectroscopy Intercalate Kaolinite N-methylformamide Ordering
2012/1/4
Stable, three-dimensionally ordered complexes were formed from synthetically hydrated, highly ordered kaolinite (d(001) = 8.4 ∈) and several organic compounds. Removal of the intercalated organic comp...
Ordered Interstratification of Dehydrated and Hydrated Na-smectite
Hydration Hydrogen positions Illite Interstratification Smectite Water X-ray powder diffraction
2012/1/12
The 001 spacing of Na-smectite was found to vary from 9.6 Å at 0% relative humidity (RH) to 12.4 Å at 60–65% RH. The 9.6-Å spacing corresponds to dehydrated Na-smectite, and the 12.4...
High-Resolution Imaging of Ordered Mixed-Layer Clays
Chlorite Corrensite High-resolution transmission electron microscopy Illite Lattice imaging Mixed layer Particle size Rectorite Smectite
2012/1/11
High-resolution transmission electron microscopy (HRTEM) has been used to examine illite/smectite from the Mancos Shale; rectorite from Garland County, Arkansas; illite from Silver Hill, Montana; Na-s...
Influence of Citric Acid on the Formation of Short-Range Ordered Aluminosilicates
Allophane Aluminosilicate Citric acid Hydroxy-Al Imogolite Noncrystalline Pseudoboehmite
2012/2/2
Reactions between hydroxy-Al ions and orthosilicic acid as influenced by citric acid were studied at an initial Si concentration of 1.6 ?10−3 M, Si/Al molar ratios of 0.5 and 1.0, OH/Al molar ra...
Atom Positions in Highly Ordered Kaolinite
Crystal structure Dickite Hydrogen atom Hydroxyl orientation Kaolinite Rietveld method
2012/2/7
The crystal structure of kaolinite (P1, a = 5.153 (1), b = 8.941 (1), c = 7.403 (1) 侌, 兛 = 91.692(3)亱, 兝 = 104.860(3)亱, 兞 = 89.822(3)亱, specimens from Keokuk geodes) has been refined in detail and tha...