搜索结果: 31-45 共查到“凹凸棒石 Formation”相关记录146条 . 查询时间(0.354 秒)
Pedogenic Formation of Kaolinite-Smectite Mixed Layers in a Soil Toposequence Developed from Basaltic Parent Material in Sardinia (Italy)
Basaltic Rock (Weathering) Kaolinite-Smectite Mixed Layers Sardinia Smectite-Layer Charge Soils
2011/12/7
Abstract: Formation of kaolinite-smectite (K-S) mixed layers in a soil toposequence developed from basaltic parent material was examined. The soil formed in a temperate climate with alternating dry an...
The Gibbs free energies and enthalpies of formation of U6+ phases: An empirical method of prediction (v. 84, 650-664,1999)
Gibbs free enthalpies of formation empirical method prediction U6+ phases
2012/3/31
Uranyl minerals form as a result of the oxidation and alteration of uraninite, UO . These uranyl2+xin used nuclear fuels under
phases are also important alteration products of the corrosion of UO
ox...
The Gibbs free energies and enthalpies of formation of U6+ phases: An empirical method of prediction
oxidation and alteration of uraninite empirical method prediction U6+ phases
2012/3/31
Uranyl minerals form as a result of the oxidation and alteration of uraninite, UO . These uranyl
in used nuclear fuels under
phases are also important alteration products of the corrosion of UO
oxi...
Enthalpy of formation of katoite Ca3Al2[(OH)4]3: Energetics of the hydrogarnet substitution
hydrogarnet substitution Ca3Al2[(OH)4]3 energetic
2012/3/31
Thesilicon-freeendmemberofthehydrogrossularsolidsolutionseries,katoite
Al [(OH) ] ,wassynthesizedinasolid-media,piston-cylinderapparatus.TheenthalpyCa
offormationfromthecomponentoxideswasmeasuredbyh...
Burial Diagenetic Processes and Clay Mineral Formation in the Molasse Zone of Upper Austria
Austria Diagenesis High-Charged Smectite Illite-Smectite Molasse Basin
2011/12/8
Abstract: Cores of pelitic sediments (Eocene-Miocene) of the drillings Puchkirchen 1 and Geretsberg 1 (Molasse Basin, Upper Austria) have been studied to determine the mineralogical and chemical chang...
The Formation of Sulfides during Alteration of Biotite to Chlorite-Corrensite?
TEM AEM Altered Biotite Biotite Chlorite Corrensite Hydrobiotite Pyrite Sphalerite
2011/12/8
Abstract: Transmission electron microscopy/analytical electron microscopy (TEM/AEM) were utilized to study pyrite and sphalerite inclusions in chlorite or mixed-layer chlorite-corrensite from an analc...
Formation of lithified micritic laminae in modern marine stromatolites (Bahamas): The role of sulfur cycling
Formation lithified micritic laminae modern marine stromatolites (Bahamas) sulfur cycling
2012/4/1
Microbial mats on the surfaces of modern, marine stromatolites at Highborne Cay, Ba-hamas, were investigated to assess the role of microbial processes in stromatolite forma-tion. The Highborne Cay str...
Formation of single-domain magnetite by a thermophilic bacterium
Formation single-domain magnetite bacterium
2012/4/1
Magnetite is a common product of bacterial iron reduction and may serve as a potential physical indicator of biological activity in geological settings. Here we report the formation of single-domain m...
Formation of Fe-silicates and Fe-oxides on bacterial surfaces in samples collected near hydrothermal vents on the Southern Explorer Ridge in the northeast Pacific Ocean
Formation Fe-silicates Fe-oxides hydrothermal vents Southern Explorer Ridge the northeast Pacific Ocean
2012/4/1
Samples collected in low-temperature (2–508 C) waters near hydrothermal vents of the Southern Explorer Ridge, in the northeast Pacific Ocean, contained fine ( ,500 nm) Fe-and Mn-oxide and Fe-silicate ...
Oriented attachment and growth, twinning, polytypism, and formation of metastable phases: Insights from nanocrystalline TiO2
Oriented attachment growth twinning polytypism formation of metastable phases Insights nanocrystalline TiO2
2012/4/1
Atomic-resolution transmission electron micrographs show that nanocrystalline TiO2 coarsens by oriented attachment and growth under hydrothermal conditions. In addition to forming homogeneous single c...
Oxygen Isotope Compositions of Mixed-Layer Serpentine-Chlorite and Illite-Smectite in the Tuscaloosa Formation (U.S. Gulf Coast): Implications for Pore Fluids and Mineralogic Reactions
Diagenesis Illite-Smectite Oxygen Isotopes Sandstone Serpentine-Chlorite Tuscaloosa Formation
2011/12/8
Abstract: Oxygen isotopic compositions were determined for coexisting mixed-layer serpentine-chlorite (Sp-Ch) and illite-smectite (I-S) from 5 Tuscaloosa Formation sandstone cores sampled between 1937...
Gibbs energies of formation for hydrocerussite [Pb(OH)2·(PbCO3)2(s)] and hydrozincite {[Zn(OH)2]3·(ZnCO3)2(s)} at 298 K and 1 bar from electrochemical cell measurements
Gibbs energies hydrocerussite [Pb(OH)2·(PbCO3)2(s)] hydrozincite {[Zn(OH)2]3·(ZnCO3)2(s)} electrochemical cell measurements
2012/3/31
New values are reported for the Gibbs energies of formation from the elements for hydrocerussite Pb(OH)2·(PbCO3)2 and hydrozincite [Zn(OH)2]3·(ZnCO3)2. These D values 0 G f were obtained from electroc...
Formation of Vermicular Kaolinite from Halloysite Aggregates in the Weathering of Plagioclase
Halloysite Kaolinite Scanning Electron Microscopy Weathering
2011/12/8
Abstract: Halloysite and kaolinite coexist in anorthosite weathering profiles in the Sancheong district, Korea. X-ray diffraction (XRD) analysis on a transect of partially weathered anorthosites revea...
Pedogenic Formation of High-Charge Beidellite in a Vertisol of Sardinia (Italy)
Beidellite High-charge Smectite Layers Illite-Smectite Mixed Layers Italy Smectite Soil Vertisol
2011/12/8
Abstract: The fine clay (<0.1 祄) fraction of a clayey soil (Vertisol) from Sardinia (Italy) was studied by means of X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, cation exch...
Structure and formation mechanism of low-angle grain boundaries in chlorite
Structure formation mechanism low-angle grain boundaries
2012/3/31
The structure and formation mechanisms of low-angle grain boundaries (LAGB) in chlorite have been investigated using HRTEM to resolve each cation sheet in chlorite. The LAGB are abundant in two hydrot...