نتایج جستجو برای: smectites

تعداد نتایج: 240  

Journal: :Applied Clay Science 2008

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Journal: :Acta Crystallographica Section A Foundations of Crystallography 2006

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Journal: :International Journal of Recent Technology and Applied Science 2022

In this study, we focused on the presentation of clay minerals, their conditions formation and different categories. We also reported importance purification in removing impurities responses induced by heat treatment these minerals. Techniques used to detect minerals are exposed. On other hand, mineralogical, physicochemical thermal properties have a direct impact field use These differ from on...

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Journal: :The American mineralogist 2015
Thomas F Bristow David L Bish David T Vaniman Richard V Morris David F Blake John P Grotzinger Elizabeth B Rampe Joy A Crisp Cherie N Achilles Doug W Ming Bethany L Ehlmann Penelope L King John C Bridges Jennifer L Eigenbrode Dawn Y Sumner Steve J Chipera John Michael Moorokian Allan H Treiman Shaunna M Morrison Robert T Downs Jack D Farmer David Des Marais Philippe Sarrazin Melissa M Floyd Michael A Mischna Amy C McAdam

The Mars Science Laboratory (MSL) rover Curiosity has documented a section of fluvio-lacustrine strata at Yellowknife Bay (YKB), an embayment on the floor of Gale crater, approximately 500 m east of the Bradbury landing site. X-ray diffraction (XRD) data and evolved gas analysis (EGA) data from the CheMin and SAM instruments show that two powdered mudstone samples (named John Klein and Cumberla...

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Journal: :Applied Clay Science 2002

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Journal: :Minerals 2020

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Journal: :Dyes and Pigments 2019

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Journal: :Frontiers in climate 2022

Mineral carbonation of alkaline mine residues is a carbon dioxide removal (CDR) strategy that can be employed by the mining industry. Here, we describe mineralogy and reactivity processed kimberlites kimberlite ore from Venetia (South Africa) Gahcho Kué (Canada) diamond mines, which are smectite-rich (2.3–44.1 wt.%). Whereas, serpentines, olivines, hydrotalcites brucite have been traditionally ...

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2006
M. SANCHEZ-CAMAZANO M. J. SANCHEz-MARTIN

-The effect of layer charge and of the interlayer cations of smectites on the hydrolysis of azinphosmethyl (0,0-dimethyl S-((4-oxo-1,2,3-benzotriazine-3(4H)-yl)methyl) phosphorodithioate) in an aqueous medium was investigated. Ultraviolet spectroscopy was used for monitoring the hydrolysis process. Hydrolysis of the pesticide is catalyzed by Ca-hectorite (layer charge 0.216) but is not catalyze...

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Journal: :Journal of Applied Crystallography 2021

The understanding of the structural formula smectite minerals is basic to predicting their physicochemical properties, which depend on location cation substitutions within 2:1 layer. This implies knowing correct distribution and positions cations, allows assigning source layer charge tetrahedral or octahedral sheet, determining total number cations and, consequently, type smectite. However, som...

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