搜索结果: 1-15 共查到“知识库 矿床学与矿相学 Earth”相关记录18条 . 查询时间(0.038 秒)
Zircon U-Pb age, Trace Element, and Hf Isotopic Compositions of Nordmarkite in the Lizhuang Rare Earth Element Deposit in the Western Margin of the Yangtze Block
nordmarkite REE deposit Hf isotopic characteristics of zircon Lizhuang
2018/4/10
The Mianning–Dechang (MD) rare earth element (REE) belt, located in the northern Kangdian axis (KDA) in the western margin of the Yangtze platform, is one of the most economically significant REE mine...
Mineralogical Characteristics of Consumed Earth Materials from Vhembe District, Limpopo Province, South Africa
Mineralogical Characteristics Consumed Earth Materials Vhembe District Limpopo Province
2012/3/14
Mineralogical Characteristics of Consumed Earth Materials from Vhembe District, Limpopo Province, South Africa.
Are clay minerals a fundamental biogeochemical regulator of the Biosphere at Earth system scales
clay minerals fundamental biogeochemical regulator Biosphere Earth system scales
2012/3/30
A common focus of clay mineralogists is on the properties of phyllosilicates that enhance chemical and manufacturing processes of materials, drilling or agricultural production. Less studied is the ro...
Study on the Material and the Structure of Earth Building in Fujian
Civil Engineering Earth Building Environment Structural Analysis
2011/12/20
Fujian Earth Building is one of typical Chinese traditional houses famous for unique architectural style and construction techniques. They were widely used in Wuyi mountain passing more than 500 years...
Consideration of Improving Earthquake Resistant Capacity of Earth Buildings
Construction Specialty Earthquake Disaster Prevention and Reduction Ecological Property Rammed earth wall
2011/12/21
Earth building is one kind of residential buildings with typical characteristics of materials used locally, natural existence, reasonable construction and low cost in Hanzhong country, and it includes...
Study on Modification of Rammed Earth Material in Mountain Areas
Compaction Test Direct Shear Test Modification Raw Soil
2011/12/16
In order to explore the proper modified materials of the raw-soil building in mountain area, the raw-soil modified materials now being used commonly are analyzed effectively at first, and the natural ...
Crystal structure of a new spinelloid with the wadsleyite structure in the system Fe2SiO4-Fe3O4 and implications for the Earth's mantle
Crystal structure spinelloid wadsleyite structure Fe2SiO4-Fe3O4
2012/3/31
A new spinelloid polytype with a composition Fe2.45Si0.55O4 has been synthesized at 1100 8C and 5.6 GPa that is isostructural with wadsleyite [b2(Mg,Fe)2SiO4
]. The refined param-eters (space group I...
Lukechangite-(Ce), a new rare-earth-fluorocarbonate mineral from Mont Saint-Hilaire, Quebec
Lukechangite new rare-earth-fluorocarbonate mineral Mont Saint-Hilaire Quebec
2012/4/6
Lukechangite-(Ce),ideallyNa Ce (CO ) F,isanewmineralfromMontSaint-Hilaire,Quebec.Itoccursastabular,shortprismatic,andbarrel-shapedcrystalsupto1mm.Itis
colorlesstopalebeigewithawhitestreakandavitreous...
Site preference of rare earth elements in fluorapatite: Binary (LREE+HREE)-substituted crystals
Site preference elements fluorapatite:Binary substituted crystals
2012/4/6
Crystalsofbinary(LREEHREE)-bearing?uorapatite[La,Gd-FAp,Ce,Dy-FAp,Pr,Er-FAp,Eu,Lu-FAp;CaNa REE (P Si O ) A ,with x 0.12¤C0.20 y 0.26¤10 x 2y y x y 1 x x 4 6 2/m]havebeengrownfromH O-richphosphate-?uor...
Incorporation of rare earth elements in titanite: Stabilization of the A2/a dimorph by creation of antiphase boundaries
Incorporation rare earth elements titanite Stabilization A2/a dimorph creation antiphase boundaries
2012/4/5
Theatomicarrangementofanaturalrare-earth-richtitaniteandtwosyntheticrare-earth-
dopedtitaniteshavebeenre?nedinspacegroup A2/a, andtheatomicarrangementofanundoped P2
/a synthetictitanitewasalsore?ned...
Preparation, Structural Characteristics and Catalytic Properties of Large-Pore Rare Earth Element (Ce, La)/Al-Pillared Smectites
Al13 Bentonite Hydroconversion Hydrocracking Laponite Montmorillonite Pillared Clays REE Saponite
2011/12/27
Ce/Al- and La/Al-pillared smectites were prepared by cation exchange of bentonite, saponite and laponite with hydrothermally treated (130–160 °C for 16–136 h) solutions containing mixtures of aluminum...
Pyroxene as a recorder of cumulate formational processes in asteroids, Moon, Mars, Earth: Reading the record with the ion microprobe
Pyroxene cumulate formational processes asteroids Moon Mars Earth ion microprobe
2012/4/5
Igneous cumulate rocks provide an important record ofplanetary magmatism, but there are pitfalls in their interpretation. Cumulus minerals mayreact withthe trapped meltand other cumulus phases during ...
Apatite Replacement and Rare Earth Mobilization, Fractionation, and Fixation During Weathering
Apatite Florencite Granite Phosphorus Rare earth elements Rhabdophane Scanning electron microscopy Weathering
2012/1/5
During an electron microscope study of the weathering of granite from southern New South Wales, Australia, an assemblage of minerals including florencite and rhabdophane was discovered replacing apati...
Flouride Content of Clay Minerals and Argillaceous Earth Materials
Flouride Content Clay Minerals Argillaceous Earth Materials
2012/2/13
A reliable method, utilizing a fluoride ion-selective electrode, is described for the determination of fluoride in clays and shales. Interference by aluminum and iron is minimal. The reproducibility o...
A Natural Clay Organic Complex from Andalusian Black Earth
Natural Clay Organic Complex Andalusian Black Earth
2012/2/13
Protein complexes of smectites in soils are difficult to detect if the usual smectite tests show no peculiarities. Andalusian black earths are typical examples. Investigation of the alkylammonium deri...