Genetic implications, composition, and structure of trioctahedral micas in xenoliths related to Plinian eruptions from the Somma-Vesuvius volcano (Italy) [PDF]
, 2023 Giuseppina Balassone +8 more
openalex +1 more source
ELECTRIC FIELD GRADIENT AT Fe2+SITES IN TRIOCTAHEDRAL LAYER SILICATES
Le Journal de Physique Colloques, 1979 We have examined a series of sheet silicates, both in single crystal form in an applied magnetic field (biotite, chlorite, vermiculite) and as powders in the magnetically ordered state (greenalite, berthierine). It is found that VZZ is negative in the 1 : 1 minerals, that η ≤ 0,2 and that the Z-axis is close to the c-axis of the silicate. These results
Ballet, O., Coey, J., Massenet, O.
openaire +2 more sources
THE FATE OF SMECTITE IN KOH SOLUTIONS [PDF]
, 2006 International audienceThe aim of the present study was to investigate the detailed evolution of the SAz-1 smectite in 1 M KOH at 80°C at a solid/liquid ratio of 1/80. AFM observations indicated no change in crystal size or shape.
Bauer, A. +6 more
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Paleoenvironmental Implications of Clay Minerals at Yellowknife Bay, Gale Crater, Mars [PDF]
The Mars Science Laboratory (MSL) Rover, Curiosity spent approx 150 sols at Yellowknife Bay (YKB) studying a section of fluvio-lacustrine sedimentary rocks (with potential indications of volcanic influence), informally known as the Yellowknife Bay ...
Blake, David F., Bristow, Thomas F.
core +1 more source
, 2002 Chrysotile asbestos is formed by densely packed bundles of multiwall hollow nanotubes. Each wall in the nanotubes is a cylindrically wrapped layer of $Mg_3 Si_2 O_5 (OH)_4$.
A. Marco Saitta +15 more
core +2 more sources
Optical phonons, OH vibrations, and structural modifications of phlogopite at high temperatures: An in-situ infrared spectroscopic study [PDF]
, 2016 The thermal behavior of optical phonons and OH vibrations of phlogopite (a trioctahedral mica) was examined at temperatures up to 1000 K using in situ infrared spectroscopy.
Carpenter, Michael A. +7 more
core +1 more source
Geological Research on the Bottom Sediments Sampled by the Fifth Japanese Antarctic Research Expedition [PDF]
, 1965 Results of soundings carried out during five Japanese Antarctic Research Expeditions are summarized. The bottom sediments collected by the 5th Expedition were analyzed concerning the grain size distribution, chemical composition, gravel composition ...
Azuma IIJIMA +9 more
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Electrokinetic and ionic dyes adsorption studies of Moroccan stevensite Jbel Rhassoul clay [PDF]
, 2011 This study aims at establishing correlation between the nature of electrical charge of morocan stevensite Jbel Rhassoul clay particles and ionic dyes adsorption phenomenon.
Amjoud, M'barek +6 more
core +1 more source
Characterizing the Phyllosilicate Component of the Sheepbed Mudstone in Gale Crater, Mars Using Laboratory XRD and EGA [PDF]
The Curiosity rover investigated the mineralogy of the Sheepbed mudstone member of the Yellowknife Bay formation in Gale crater. Data from the Chemistry and Mineralogy (CheMin) X-ray diffractometer (XRD) helped identify phyllosilicates in the two drilled
Achilles, C. A. +21 more
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Acta Universitaria, 2012 En este trabajo se determinan las fórmulas estructurales de minerales arcillosos contenidos en arcillas provenientes de localizaciones geológicas de los municipios de Comonfort, Jerécuaro, Victoria y San Francisco del Rincón, pertenecientes al Estado de
Esthela Ramos Ramírez +2 more
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