搜索结果: 1-15 共查到“矿床学与矿相学 Order”相关记录16条 . 查询时间(0.152 秒)
Tobermorites: Their real structure and order-disorder (OD) character
Tobermorites real structure order-disorder character
2012/4/1
The real structures of clinotobermorite, tobermorite 9 ?, and tobermorite 11 ? were determined
through the application of OD approach, which allowed us to explain their peculiar disorder and
polytyp...
Calorimetric studies of the energetics of order-disorder in the system Mg1-xFexCa(CO3)2
Calorimetric studies energetics order-disorder system Mg1-xFexCa(CO3)2
2012/4/1
Calorimetric studies by Chai and Navrotsky (1996) on dolomite-ankerite energetics have beenextended by including two additional types of samples: a very disordered stoichiometric MgCa(CO3 2prepared fr...
Order-disorder process in the tetrahedral sites of albite
Order-disorder proces tetrahedral sites of albite
2012/3/31
The crystal structure of albite from Stintino, Sardinia, Italy, was refined at different degrees of
disorder to determine the (Si-Al) order-disorder process. Eight X-ray structure refinements were
p...
Gillulyite Tl2(As,Sb)8S13: Reinterpretation of the crystal structure and order-disorder phenomena
Tl2(As,Sb)8S13:crystal structure order-disorder phenomena slabs
2012/3/31
ThecrystalstructureofgillulyiteTl (As,Sb) S wasreinterpretedbasedontheaverage
structuredeterminedbyFoitetal.(1995).ItconsistsofalternatingPbS-likeslabscom-
prisedofAs-SpolyhedraandTl-bearingslabswit...
Fe-Mg order-disorder in tremolite-actinolite-ferro-actinolite at ambient and high temperature
Fe-Mg order-disorder tremolite-actinolite-ferro-actinolite temperature
2012/3/31
The crystal structures and M-site populations of a series of unheated and heat-treated,near-binary members of the actinolite series were determined from single-crystal X-ray diffraction data. Small, s...
Multi-site order-disorder kinetics in crystalline solids: A generalized formulation
Multi-site order-disorder kinetics crystalline solids generalized formulation
2012/4/5
Manycrystallinesolidshavemultiplenonequivalentsitesamongwhichdifferentatoms
showsubstitutionallong-rangeorder-disorderphenomena.Theorder-disorderkineticsof
anatomamongany n nonequivalentsitesinacrys...
Si-Al order and the I1 - I 2/c structural phase transition in synthetic CaAl2Si2O8- SrAl2Si2O8 feldspar: A 29Si MAS-NMR spectroscopic study
Si-Al order I1 - I 2/c structural phase transition synthetic CaAl2Si2O8- SrAl2Si2O8 feldspar A 29Si MAS-NMR spectroscopic study
2012/4/1
We present 29SiMAS-NMR spectroscopic data for a series of synthetic feldspar samples
along the join CaAI2Si20g-SrAI2Si20g, from which the composition dependence and cou-
pling of order parameters de...
Thermodynamics of order-disorder in minerals: II. Symmetric formalism applied to solid solutions
Thermodynamics order-disorder minerals II. Symmetric formalism solutions
2012/4/9
The thermodynamics of order-disorder in mineral solid solutions are handled withsym-metric formalism, whereby the mineral is treated as a solid solution between an indepen-dent set of end-members with...
Thermodynamics of order-disorder in minerals: I. Symmetric formalism applied to minerals of fixed composition
Thermodynamics order-disorder minerals I. Symmetric formalism composition
2012/4/9
Thermodynamics of order-disorder in minerals maybe approached by treating the min-eral as a solid solution between an independent set of end-members withwhich the range of possible states of ordering ...
Order-disorder phenomena, which playa key role in the energetics, crystal chemistry, and physical properties of numerous solids, may be strongly affected by pressure. The effect of pressure on the sta...
Short-range order of (Na,K) and Al in tremolite: An infrared study
Short-range (Na,K) and Al tremolite infrared study
2012/4/5
Assignment of the component bands in the infrared spectrum of tremolite containing A(Na,K)and TAlshows that the nontremolite components in the crystal are not randomly distributed throughout the struc...
Stacking Order in a K/Mg Interstratified Vermiculite from Malawi
Crystal structure Interstratification Ion exchange Ordering Stacking Vermiculite
2011/12/30
The stacking order of a bi-ionic K/Mg vermiculite from Malawi (Nyasaland), has been determined from Weissenberg data. The sample corresponds to a K/Mg interstratified vermiculite containing 50% K laye...
Effects of Iron Oxidation State on the Texture and Structural Order of Na-Nontronite Gels
Electron diffraction Ferric iron Ferrous iron High-resolution transmission electron microscopy Layer structure Nontronite
2011/12/31
Aqueous gels of unaltered (oxidized) and chemically reduced ferruginous smectite (SWa-1 from the Source Clays Repository of The Clay Minerals Society) were characterized by transmission electron micro...
A First-Order Markov-Chain Model of Zeolite Crystallization
Crystallization Markov-chain model Rate constants Silica oligomers Zeolites
2012/1/6
A method using a finite, first-order Markov chain is presented to estimate rate constants for zeolite formation from experimental nuclear magnetic resonance (NMR) data on the abundance of different si...
Stacking Order in a 14.30-A Mg-Vermiculite
Crystal structure Ordering Polytype Stacking Vermiculite
2012/1/10
The stacking order of a 14.30-侌 Mg-vermiculite from Santa-Olalla, Spain, has been determined from Weissenberg photographs. The results prove that the Mg-vermiculite structure is not a 2-layer polytype...