Results 201 to 210 of about 543,793 (292)

Microspherules Formed by Lightning Strikes

Meteoritics &Planetary Science, EarlyView.
Abstract Natural microspherules are formed by high‐temperature processes and are present throughout the geologic record to the present day. We report the discovery of large numbers of microspherules recovered from a rock pavement in the Pilbara region, Western Australia.
M. R. Boyd, M. J. Genge, A. G. Tomkins
wiley   +1 more source

Synthesis and Structural Characteristics of Magnesium Oxide, Magnesium Silicate, and Magnesium Oxide/Magnesium Silicate Nanostructures, and Their Luminescence Properties

Synthesis and Structural Characteristics of Magnesium Oxide, Magnesium Silicate, and Magnesium Oxide/Magnesium Silicate Nanostructures, and Their Luminescence Properties
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Dissolution kinetics of magnesium silicates

Geochimica et Cosmochimica Acta, 1972
Abstract Kinetic dissolution experiments on serpentine, forsterite and enstatite over a wide pH range at 25°C show that there is an initial rapid exchange of surface magnesium ions with hydrogen ions followed by a longer period of hydrogen exchange and extraction of internal magnesium and silicon, with the amount extracted proportional to t 1 2
Robert W Luce, Robert W Bartlett, George A Parks   +2 more
openaire   +2 more sources

Paleoenvironmental insights from the deposition and diagenesis of Aptian pre-salt magnesium silicates from the Lula Field, Santos Basin, Brazil

Journal of Sedimentary Research, 2022
Since the discovery of giant Aptian pre-salt reservoirs in Brazilian margin basins, the study of lacustrine carbonates has drawn great attention from the scientific community. Comparatively, minor attention was given to the characterization and genesis
Nívea G. Carramal, Daniel M. Oliveira, A. Cacela, M. A. Cuglieri, Natasha P. Rocha, S. M. Viana, Sergio Toledo, S. Pedrinha, L. D. De Ros   +8 more
semanticscholar   +1 more source

Application of concurrent grinding in direct aqueous carbonation of magnesium silicates

, 2021
Formation of silica-rich passivation layers formed on the periphery of reacting feed particles is one of the primary obstacles in obtaining high magnesite yields during direct aqueous mineral carbonation of peridotites and serpentinites.
M. Rashid, E. Benhelal, F. Farhang, T. Oliver, M. Stockenhuber, E. Kennedy   +5 more
semanticscholar   +1 more source

Final report on the safety assessment of aluminum silicate, calcium silicate, magnesium aluminum silicate, magnesium silicate, magnesium trisilicate, sodium magnesium silicate, zirconium silicate, attapulgite, bentonite, Fuller's earth, hectorite, kaolin, lithium magnesium silicate, lithium magnesium sodium silicate, montmorillonite, pyrophyllite, and zeolite.

International journal of toxicology, 2003
This report reviews the safety of Aluminum, Calcium, Lithium Magnesium, Lithium Magnesium Sodium, Magnesium Aluminum, Magnesium, Sodium Magnesium, and Zirconium Silicates, Magnesium Trisilicate, Attapulgite, Bentonite, Fuller's Earth, Hectorite, Kaolin, Montmorillonite, Pyrophyllite, and Zeolite as used in cosmetic formulations.
  +6 more sources

Review on calcium and magnesium based silicates for bone tissue engineering applications.

Journal of Biomedical Materials Research. Part A, 2020
Bone is a self-engineered structural component of the human body with multifaceted mechanical strength which provides indomitable support to the effective functioning of the human body.
S. Venkatraman, Dr. Sasikumar Swamiappan
semanticscholar   +1 more source

Magnesium Silicate

2011
A comprehensive profile of magnesium silicate with 80 references is reported. A full description including nomenclature, formulae, and appearance is included. Methods for magnesium silicate preparation including precipitation, hydrothermal precipitation, and mechanochemical dehydration are reviewed. Physical characteristics, compendia and non-compendia
Iyad, Rashid, Nidal H, Daraghmeh, Mahmoud M, Al Omari, Babur Z, Chowdhry, Stephen A, Leharne, Hamdallah A, Hodali, Adnan A, Badwan   +6 more
openaire   +2 more sources

Role of magnesium-bearing silicates in the flotation of pyrite in the presence of serpentine slimes

Powder Technology, 2018
Flotation is the most effective separation solution used in sulphide ore beneficiation. In sulphide ore flotation, the interaction between the valuable sulphide minerals and the gangues are complex. Serpentine, a common magnesium-bearing silicate mineral
Siyuan Yang, B. Xie, Yi-ping Lu, Chao Li
semanticscholar   +1 more source

Magnesium silicate in virus transmission

Virology, 1970
Abstract Magnesium trisilicate (Mg2Si3O8·5H2O, here abbreviated as MgSi) functioned as an abrasive in the transmission of cucumber mosaic virus (CMV) and all viruses tested, but as an abrasive it was only about one-sixtieth as effective as Celite. When variable amounts of MgSi were added to inoculum of CMV from cucumber and containing Celite, the ...
C E, Yarwood, E, Hecht-Poinar
openaire   +2 more sources