silicic


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Related to silicic: silicic acid

silicic

[sə′lis·ik]
(petrology)
Describing magma or igneous rock rich in silica (usually at least 65); granite is a silicic rock. Also known as oversaturated; persilicic.
References in periodicals archive ?
The nearby Gruithuisen domes, a bit farther south, have classic silicic dome morphology yet are not water-rich.
The silicic acid will first condenses to form silica particles of smaller sizes and then consequently Si-O-Si network will grow due to the process of polycondensation
To build a shallow-level large silicic magma reservoir, effective and continuous extraction of highly viscous silicic melts from the partially molten zone in the lower crust is required, otherwise partial melts evolve to intermediate and finally basaltic compositions as a result of a continuous heat supply.
The electron microscopy analysis revealed similarities to the thicker cuticles observed in coffee seedlings fertilized with silicic acid (Botelho et al.
In the study area, the outcropping lithologies were grouped into nineteen classes: 1--lower Ordovician sedimentary rocks, 2--Devonian conglomerates, sandstones and pelites, 3,4,5 and 6--carboniferous marine formations, 7, 10 and 11--granites, 8--granodiorites, 9--rhyolites, 12--mesosilicic and silicic volcanic and igneous complex, 13--multicolor tuff, 14--Miocene intrusive rocks, 15--Miocene argillites, 16 and 17--Pleistocene deposits, 18--silt, and 19--recent deposits.
M, 2006: Silicic ignimbrites of El Valle Volcano, Panama; Comparison with silicic ignimbrites of the Central American volcanic arc.
Synthetic silicates are made up of simple or complex salts of silicic acids, and have been used extensively for various commercial and industrial applications, such as food additives, glass and ceramic filler materials, and anti-caking agents.
Silicic aggregate and granite are the least suitable rocks.
Experiment was comprised of three silicon sources (sodium silicate, calcium silicate and silicic acid) and four concentrations (0, 50, 100 and 150 mg kg-1).