Results 11 to 20 of about 16,870 (188)

Soil formation in high elevation and permafrost areas in the Qinghai Plateau (China) Edafogénesis en zonas elevadas y con permafrost en el Plateau Qunghai (China) Formação do solo em áreas de elevada altitude e em ambientes"permafrost" do planalto de Qinghai Plateau (China) [PDF]

open access: yesSpanish Journal of Soil Science, 2012
<p style="text-align: justify;">Soil systems continuously gain and lose matter and energy even in areas where climate is too harsh to support the higher plants such as in high elevations and in permafrost environments. The purpose of this
Joselito Arocena   +2 more
doaj   +1 more source

Preparation and photocatalytic performance of muscovite/TiO2 composites

open access: yesCailiao gongcheng, 2023
Muscovite/TiO2(M/T)composite photocatalytic materials were synthesized by a hydrothermal method using tetrabutyl titanate as the titanium source and glacial acetic acid as the inhibitor.
WANG Ning   +3 more
doaj   +1 more source

Effect of Ag Modification on the Structure and Photocatalytic Performance of TiO2/Muscovite Composites

open access: yesMolecules, 2023
Ag/TiO2/muscovite (ATM) composites were prepared by the sol–gel method and the effects of Ag modification on the structure and photocatalytic performance were investigated.
Fengqiu Qin   +7 more
doaj   +1 more source

Occurrence and mineralogy of the margarite- and muscovite-bearing pseudomorphs after topaz in the Juurakko pegmatite, Orivesi, southern Finland [PDF]

open access: yesBulletin of the Geological Society of Finland, 1988
Margarite- and muscovite-bearing pseudomorphs after topaz are described from the Juurakko pegmatite dyke, Orivesi, southern Finland. A supercritical vapour phase rich in calcium and alkalies caused alteration of topaz and some other silicates during ...
S.I. Lahti
doaj   +1 more source

Detrital Mica Composition Quantitatively Indicates the Sediment Provenance along the Subei Coast to the Yangtze Estuary

open access: yesApplied Sciences, 2022
The influence of large rivers on the Subei littoral plain area requires more research than the results that have been available up to now. Thus, specific diagnostic indices of detrital mica are successfully applied for the first time to identify the ...
Zhicheng Dong, Lina Zhang, Bingfu Jin
doaj   +1 more source

Composites Based on Post-Industrial Wood Plastic Waste and Ultrasonic Treated Muscovite [PDF]

open access: yesMaterials Research, 2023
In this work muscovite was ultrasonically treated to obtain composites with post-industrial wood plastic residues. The muscovite was ultrasonicated for 30 or 60 min and mixed with the polymeric matrix at a constant level of 15% (weight percentage).
Beatriz Cruz Bastos   +4 more
doaj   +1 more source

Oxygen-Assisted MOCVD Growth of Monolayer PtSe<sub>2</sub> Films With Bandgap Opening for Semiconducting FET Channels. [PDF]

open access: yesAdv Sci (Weinh)
Monolayer PtSe2 films are successfully grown via optimized MOCVD, achieving uniform coverage over a 1.5 cm × 1.5 cm area. Oxygen‐assisted growth effectively removes carbon impurities, ensuring high film quality. Array‐level FETs based on monolayer PtSe2 channels demonstrate low off‐current and high ION/IOFF ratios, highlighting the potential of PtSe2 ...
Kim Y   +22 more
europepmc   +2 more sources

Potassium at the Origins of Life: Did Biology Emerge from Biotite in Micaceous Clay?

open access: yesLife, 2022
Intracellular potassium concentrations, [K+], are high in all types of living cells, but the origins of this K+ are unknown. The simplest hypothesis is that life emerged in an environment that was high in K+.
Helen Greenwood Hansma
doaj   +1 more source

Petrology and geochronology of "muscovite age standard" B4M [PDF]

open access: yes, 2014
Muscovite B4M, distributed in 1961 as an age standard, was ground under ethanol. Five grain size fractions were obtained and characterized by X-ray diffraction. They display a mixing trend between a phengitic (enriched in the fraction 20 µm).
Robyr, Martin   +2 more
core   +3 more sources

Chemical zoning of muscovite megacrystal from the Brazilian Pegmatite Province

open access: yesAnais da Academia Brasileira de Ciências, 2007
Macroscopically homogenous muscovite plate from the Cruzeiro pegmatite, located in the Eastern Pegmatite Province in Minas Gerais, may show complex distribution patterns of some trace elements. In geochronological and petrological studies, as for example
Rúbia R. Viana   +2 more
doaj   +1 more source

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