单词 | phyllosilicate |
释义 | phyllosilicaten. Mineralogy. Any of the large subclass of silicate minerals characterized by SiO4 tetrahedra linked in sheets of indefinite extent in which the ratio of silicon and aluminium to oxygen is 2:5, important members of which include mica, serpentine, talc, chlorite, and the clay minerals. ΘΚΠ the world > the earth > minerals > types of mineral > silicates > phyllosilicate > [noun] phyllosilicate1947 1947 Mineral. Abstr. 10 52 The different types of SiO4 bonding give at last a systematic classification of silicates into nesosilicates,..sorosilicates,..inosilicates,..phyllosilicates,..and tectosilicates. 1972 Nature 1 Sept. 7/1 Phyllosilicates are the most common material in carbonaceous meteorites. 1991 M. A. Summerfield Global Geomorphol. (BNC) 138 In most cases they [sc. clay minerals] are formed through the recombination of silica, alumina and metal cations released during weathering into layered phyllosilicate-type structures. 1998 J. F. Ranville & R. L. Schmiermund in D. L. Macalady Perspectives in Environmental Chem. ii. 30 Colloidal particles in natural waters may be composed of a wide variety of natural and synthetic materials ranging from macromolecules..to oxides and phyllosilicates. This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022). < n.1947 |
随便看 |
|
英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。