搜索结果: 1-15 共查到“矿床学与矿相学 TEM”相关记录16条 . 查询时间(0.163 秒)
在X射线衍射等分析研究基础上，进一步用透射电镜对半封闭室内长期沉积的大气降尘进行观察，提供了合肥地区大气降尘物相组成和各种物相形貌特征信息，揭示合肥地区大气污染物来源占第1位的是地表扬尘，以粘土矿物为标志；占第2位的是来源于大气化学次生气溶胶，主要和SO2、CO2、NOx等气态污染物排放有关，以石膏、碳酸盐和易溶盐类为标志；占第3位的是来源于汽车尾气排放的烟尘，以炭球为标志；占第4位的是来源于燃煤...
In situ conditions and interactions between microbes and minerals in fine-grained marine sediments: A TEM microfabric perspective
microbes situ conditions minerals ?ne-grained marine
2012/3/30
Microbes,theirexocellularsecretions,andtheirimpactonthemineralogyandmicro-
fabricof?ne-grainedcontinentalmarginsedimentswereinvestigatedbytransmissionelec-
tronmicroscopy.Techniqueswereusedthatretai...
TEM investigation of Lewiston, Idaho, fibrolite: Microstructure and grain boundary energetics
grain boundary energetics Microstructure
2012/3/30
High-resolutiontransmissionelectronmicroscopy(HRTEM)revealedthatasampleof
?ne-grainedLewiston,Idaho,?broliteispredominantly?brolitewithtraceamountsof
poorlycrystallinelayersilicates.The?broliteconsi...
Distribution of cations and vacancies and the structure of defects in oxidized intermediate olivine by atomic-resolution TEM and image simulation
Distribution of cations vacancies atomic-resolution TEM image simulation
2012/4/1
The Fe, Mg, and vacancy distributions in oxidized olivine of intermediate composition and the crystal structures of associated planar defects were examined by a combination of atomic-resolution transm...
TEM investigation of potassium-calcium feldspar inclusions in B鴊gild plagioclase
TEM investigation potassium-calcium feldspar inclusions B鴊gild plagioclase
2012/4/6
PotassiumcalciumfeldsparinclusionsinaBggildplagioclasewereinvestigatedbyanalyticalhighresolutiontransmissionelectronmicroscHRTEM),andtheformationprocessoftheseinclusionsisconsideredbasedontheAlSiorder...
Electron irradiation-induced phase segregation in crystalline and amorphous apatite: A TEM study
Electron irradiation-induced phase segregation crystalline amorphous apatite A TEM study
2012/4/6
SinglecrystalsofnaturalF-richapatiteand800keVKr ion-beam¤Camorphizedapatit
wereirradiatedbyanelectronbeaminatransmissionelectronmicroscopeoverarange
ofbeamenergiesandbeamcurrents.Irradiationofcrysta...
Ab-initio synthesis and TEM confirmation of antigorite in the system MgO-SiO2-H2O
Ab-initio synthesis TEM confirmation antigorite system MgO-SiO2-H2O
2012/4/5
Forthe?rsttime,chemicallypure,nearlysingle-phaseantigorite,Mg Si O (OH) ,wassynthesizeddirectlywithoutusingseeds.Startingmaterialwasastoichiometricmix-tureofpreviouslysynthesizedtalcandbrucite.Synthes...
Illite-Smectite Alteration and Accompanying Reactions in a Pennsylvanian Underclay Studied by TEM
Coal Basin Diagenesis HRTEM Illite/Smectite Paleosol Underclay Weathering
2011/12/22
Abstract: Pennsylvanian underclay from Illinois is characterized by well-developed mineral zonation: towards the coal bed, marly limestone gradually evolves into carbonate-free clay, chlorite becomes ...
Cathodoluminescence of meteoritic and synthetic forsterite at 296 and 77 K using TEM
Cathodoluminescence meteoritic synthetic forsterite 296 77 K using TEM
2012/4/5
Cathodoluminescence(CL)emissionspectraofforsteritefromtheAllende(CV3)and
Murchison(C2)meteoritesandfromCr-dopedandpuresyntheticforsteritesampleshave
beenobtainedatroom(296K)andliquidnitrogen(77K)tem...
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). ...
TEM investigation of the domain structure and superstructure in hillebrandite, Ca2SiO3(OH)2
TEM investigation domain structure superstructure hillebrandite Ca2SiO3(OH)2
2012/4/9
Selected-area electron diffraction, dark-field images, and high-resolution transmission electron microscope images show that there are pervasive domains in hillebrandite from Mexico. The domains are i...
Tem and X-Ray Diffraction Evidence for Cristobalite and Tridymite Stacking Sequences in Opal
Opal Transmission Electron Microscopy X-Ray Diffraction
2011/12/27
Abstract: In an attempt to resolve the structure of opal-CT and opal-C more precisely, 24 opal samples from bentonites, Fuller's Earths, zeolite tufts, biogenic silicas and silicified kaolins have bee...
TEM Observations of Coherent Stacking Relations in Smectite, I/S and Illite of Shales: Evidence for MacEwan Crystallites and Dominance of 2M1 Polytypism
2M1 Polytypism Coherent Fundamental Particles Illite I/S MacEwan Crystallites Optical Diffraction Patterns SAED Smectite Stacking Relations Cross Fringes
2011/12/23
Abstract: TEM characterization of stacking relations in I/S of expanded shale samples from the Gulf Coast and Michigan Basin was carried out to address the issues of the degree of coherency and the na...
A Technique for Maintaining Texture and Permanent Expansion of Smectite Interlayers for TEM Observations
Illite LR White resin R1 I/S Rectorite Smectite Transmission electron microscopy (TEM)
2011/12/1
Abstract: A process for treating smectite-bearing rock samples that utilizes LR White resin; allows TEM observation of expanded smectite interlayers and therefore preservation of original rock texture...
Characterization of Tubular Chrysotile by Thermoporometry, Nitrogen Sorption, Drifts, and TEM
Chrysotile asbestos Infrared spectroscopy N2 adsorption and desorption Thermoporometry Transmission electron microscopy X-ray diffraction
2011/12/30
The maximum crystal radius Rn of ice in hollow wet chrysotile tubes is established by thermoporometry to be between 2.8 and 3.2 nm, and the internal pore volume Vn of the tubes to be between 0.008 and...