搜索结果: 1-15 共查到“凹凸棒石 quartz”相关记录28条 . 查询时间(0.041 秒)
The Role of Extensional Fractures and Quartz Veins in the Formation of Kaolin Deposit From the Dwyka Tillite in Grahamstown, Eastern Cape Province, South Africa
Role Extensional Fractures Quartz Veins Formation Kaolin Dwyka Tillite
2012/3/14
The Role of Extensional Fractures and Quartz Veins in the Formation of Kaolin Deposit From the Dwyka Tillite in Grahamstown, Eastern Cape Province, South Africa.
Comparison of conventional and garnet-aluminosilicate-quartz O isotope thermometry: Insights for mineral equilibration in metamorphic rocks
Comparison of conventional garnet-aluminosilicate-quartz O mineral equilibration metamorphic rocks
2012/4/1
Oxygen isotope thermometry based on fractionations among quartz, garnet, kyanite, silliman-
ite, and potassium feldspar in amphibolite to granulite facies schists and gneisses was compared to
thermo...
Thermochemistry of stuffed quartz-derivative phases along the join LiAlSiO4-SiO2
stuffed quartz-derivative phases join LiAlSiO4-SiO2
2012/4/1
Enthalpies of drop-solution (?H ) of a suite of stuffed quartz-derivative phases with the compo-drop-soln
Al Si O (0 ? x ? 1) have been measured in molten 2PbO°§ O at 974 K. Substitution of
sition...
Relationships between respiratory diseases and quartz-rich dust in Idaho, U.S.A.
respiratory diseases quartz-rich dust Idaho PM10
2012/3/31
Quartz°(TM)one of the most abundant minerals in the Earth°Os crust°(TM)has been deemed a human c
cinogen by the International Agency for Research on Cancer (IARC), with the main threat to humans
bei...
Equilibria among titanite, hedenbergite, fayalite, quartz, ilmenite, and magnetite: Experiments and internally consistent thermodynamic data for titanite
hedenbergite fayalite magnetite thermodynamic data titanite
2012/3/31
For iron-rich compositions, reactions among titanite, clinopyroxene, olivine, quartz,magnetite, and ilmenite can constrain the conditions under which common rocks form.Phase equilibrium experiments in...
Heat capacity and thermodynamic properties for coesite and jadeite, reexamination of the quartz-coesite equilibrium boundary
Heat capacity thermodynamic properties quartz-coesite equilibrium boundary
2012/3/31
The heat capacities of synthetic coesite and jadeite were measured between about 15 and 850 K by adiabatic and differential scanning calorimetry. The experimental data were smoothed and estimates were...
Calibration of excess thermodynamic properties and elastic constant variations due to the α ↔ β phase transition in quartz
Calibration thermodynamic properties
2012/3/30
Spontaneous strains for the a ↔b transition in quartz were determined from lattice parameter data collected by X-ray powder diffraction and neutron powder diffraction over the temperature range ...
Reversed determination of the reaction: Phlogopite + quartz = enstatite + potassium feldspar + H2O in the ranges 750-875 篊 and 2-12 kbar at low H2O activity with concentrated KCl soluctions
Reversed determination Phlogopite + quartz = enstatite + potassium feldspar + H2O H2O KCl soluctions
2012/3/31
The reaction of phlogopite plus quartz to enstatite, potassium feldspar, and aqueous fluid in the system KMASH-KCl was reversed at 2?2 kbar and 750?75 8C and at low H2O activities by reversal of the H...
Memory effects of domain structures during displacive phase transitions: A high-temperature TEM study of quartz and anorthite
Memory effects domain structures displacive phase transitions high-temperature TEM study of quartz anorthite
2012/4/1
Memory effects ass~iated with the Dauphine twins in a quartz and the c-antiphase
domains (c-APDs) in PI anorthite have been investigated by in situ hot-stage transmission
electron microscopy (TEM). ...
Submicroscopic Structure of Fe-Coatings on Quartz Grains in Tropical Environments
Electron Microscopy Fe-coating Fe-nodules Fe-oxide Forms Submicroscopic Structure Ultrathin Sections X-ray Microprobe Analysis
2011/12/27
Formation of Fe-coatings or segregation at the expense of quartz grains is a common process in the tropical environment. Limited information is available about their internal structure at the submicro...
High-precision analysis of hydrous rhyolitic glass inclusions in quartz phenocrysts using the electron microprobe and INAA
High-precision analysis hydrous rhyolitic glass quartz phenocrysts electron microprobe INAA
2012/4/6
Ahigh-precision electron microprobe(EMP) technique hasbeendeveloped that is ca-pableofanalyzing major,minor,and trace element abundances (Si,Ti,AI,Fe,Mn,Mg,
Ca,Na,K,Cl)in hydrous rhyolitic glasses.Th...
Cathodoluminescence of quartz from sandstones: Interpretation of the UV range by determination of trace element distributions and fluid-inclusion P-T-X properties in authigenic
Cathodoluminescence quartz sandstones Interpretation UV range determination trace element distributions fluid-inclusion P-T-X properties authigenic
2012/4/6
Quartz overgrowths from Keuper sandstones of the Paris basin wereexamined using cathodoluminescence (CL) microscopy and spectroscopy coupled witha scanning electron microscope (SEM). Withthe use ofsta...
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...
Fluid-absent melting of F-rich phlogopite + rutile + quartz
Fluid-absent F-rich phlogopite + rutile + quartz
2012/4/5
Fluid-absent meltingis believed to bean important processin the generation ofmelts mthe lower crust and upper mantle.Breakdownofphlogopite makesH0 available and thus controlsthe conditions atwhichflui...
Morphology and maturation of melt inclusions in quartz phenocrysts in afrom the Badlands rhyolite lava flow, southwestern Idaho
Morphology maturation of melt inclusions phenocrysts Badlands rhyolite lava flow southwestern Idaho
2012/4/5
Morphologiesofprimary rhyolitic meltinclusions in three successive populations of quartz phenocrysts in asinglevolcanic unit illustrate the changeofinclusion shape after trapping. The 14MaBadlandslava...