搜索结果: 1-5 共查到“地质学 leucite”相关记录5条 . 查询时间(0.125 秒)
Si-Al ordering in leucite-group minerals and ion-exchanged analogues: An MAS NMR study
Si-Al leucite-group minerals ion-exchanged analogues MAS NMR study
2012/4/6
Twoseriesofleucitegroupmaterials,withK,Rb,andCsasextra-frameworkcations,havebeensynthesizedbyionexchangefromanaturalwell-orderedanalciteandanatural29 27disorderedleucite.Siand AlMASNMRdatafortheanalci...
Structural behavior, crystal chemistry, and phase transitions in substituted leucite: High-resolution neutron powder diffraction studies
Structural behavior crystal chemistry phase transitions substituted leucite High-resolution neutron powder diffraction studies
2012/4/1
High-resolution neutron powder diffraction was used to study phase transitions in theleucite phases of KAlSi206, RbAlSi20", CsAlSi206, and KFeSi206. Thetemperature-depen-dent structural behavior invol...
Monoclinic-orthorhombic phase transition in K2MgSi5O12 leucite analog
Monoclinic-orthorhombic phase transition K2MgSi5O12 leucite analog
2012/4/5
Thehigh-temperature cell parameters ofK2MgSis012have been measuredbyX-ray powder diffractionbetweenroom temperature and 842K.Afirst-order ferroelastic phase
transition between the room-temperature P2...
Naturally occurring ferric iron sanidine from the Leucite Hills lamproite
ferric iron sanidine Leucite Hills lamproite
2012/4/5
Sanidine crystals precipitating from lamproitic magmascharacteristically contain ap-preciableamounts ofFeH. Sanidinegrainsfrom the LeuciteHillslamproites (Wyoming) have compositions in whichupto 70mol...
CRYSTALLIZATION OF LEUCITE-NEPHELINE-SANIDINE IN BASIC DIFFERENTIATES FROM A PERIDOTITE-DUNITE MASS IN SALEM, MADRAS STATE, INDIA
CRYSTALLIZATION LEUCITE-NEPHELINE-SANIDINE IN BASIC DIFFERENTIATES A PERIDOTITE-DUNITE MASS IN SALEM MADRAS STATE INDIA
2014/4/8
The potassic rocks of Salem occur as dikes and sheets within or marginal to a dunite-peridotite mass that has intruded into Archean Peninsular gneisses, charnockite series, pyroxenites and dolerites. ...