Results 21 to 30 of about 62,511 (275)
Influence of OH- concentration on the illitization of kaolinite at high pressure [PDF]
, 2011 The products of hydrothermal reactions of kaolinite at 300°C and 1000 bars were studied in KOH solutions covering an OH- concentration, [OH-], of 1M to 3.5M. XRD patterns indicated a notable influence of the [OH-] on the reaction.
Becerro Nieto, Ana Isabel +2 more
core +1 more source
Infinite charge mobility in muscovite at 300K [PDF]
, 2017 Evidence is presented for infinite charge mobility in natural crystals of muscovite mica at room temperature. Muscovite has a basic layered structure containing a flat monatomic sheet of potassium sandwiched between mirror silicate layers.
Archilla, Juan F. R. +3 more
core +2 more sources
Potassium at the Origins of Life: Did Biology Emerge from Biotite in Micaceous Clay?
Life, 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
Anomalously old biotite 40Ar/39Ar ages in the NW Himalaya [PDF]
, 2017 Biotite 40Ar/39Ar ages older than corresponding muscovite 40Ar/39Ar ages, contrary to the diffusion properties of these minerals, are common in the Himalaya and other metamorphic regions.
Grujic, Djordje +6 more
core +1 more source
Chemical zoning of muscovite megacrystal from the Brazilian Pegmatite Province
Anais 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
Dual-Energy Processing of X-ray Images of Beryl in Muscovite Obtained Using Pulsed X-ray Sources
Sensors, 2023 This paper presents the development of a method for dual-energy processing of X-ray images using pulsed X-ray sources for the contrast detection of beryl in muscovite mica in 2D X-ray and CT images.
Alexander Komarskiy +3 more
doaj +1 more source
Zircon dissolution in a ductile shear zone, Monte Rosa granite gneiss, northern Italy [PDF]
, 2008 The sizes, distributions and shapes of zircon grains within variably deformed granite gneiss from the western Alps have been studied. Zircon shows numerous indicators of a metamorphic response in both the host gneiss and a 5 cm wide continuous ductile ...
Dal Piaz +14 more
core +1 more source
Crystals, 2021 Clay mineral materials have attracted attention due to their many properties and applications. The applications of clay minerals are closely linked to their structure and composition.
Layla Shafei +2 more
doaj +1 more source
Garnet–monazite rare earth element relationships in sub-solidus metapelites: a case study from Bhutan [PDF]
, 2018 A key aim of modern metamorphic geochronology is to constrain precise and accurate rates and timescales of tectonic processes. One promising approach in amphibolite and granulite-facies rocks links the geochronological information recorded in zoned ...
Argles, Tom W. +5 more
core +9 more sources
Neural Regeneration Research, 2020 Despite numerous efforts to overcome neuropathic pain, various pharmacological drugs often fail to meet the needs and have many side effects. Muscovite is an aluminosilicate mineral that has been reported to have an anti-inflammatory effect, but the ...
Ju-Young Oh +6 more
doaj +1 more source