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Sediment aluminum silicate

Plagioclase A sodium and calcium aluminum silicate mineral that commonly forms in igneous and metamorphic rocks, and occasionally survives weathering to occur in sediments, soils, and sedimentary rocks. A solid solution exists in plagioclase, where (CaAl)5+ and (NaSi)5+ may substitute for each other to produce a composition that ranges from NaAISisOg to CaAUSiiOg. [Pg.461]

Field observations implicating the importance of aluminosilicates to opal diagenesis were followed by laboratory experiments to determine the effect of Al(lll) derived from detrital aluminum silicate on the solubility and dissolution kinetics of opal. Dixit et al. (2001) mixed opal-rich ( 90% Si02) sediments from the Southern Ocean with different amounts of either kaolinite or ground basalt in long-term (21 months) batch... [Pg.3162]

In basalts, lawsonite is the only hydrous phase which is stable in the deep mantle and this phase dehydrates at the depth of the mantle transition zone. Similarly in subducted pelagic sediments there is a series of hydrated aluminum silicates and oxides (including the phase Egg - AlSiOs.OH) which also remain stable down to transition zone depths (Williams Hemley, 2001). [Pg.179]

Ca3(P04)2. Rapid sorption of iron by coastal sludge was observed after authorized discharge of Fe from an English nuclear power station, and re-mobilization of these anthropogenic iron traces was slow (Warwick etal. 2001). Correspondingly, the industrial Fe, Cr, and Ni load was associated with aluminum-silicate lattice in sediments of a Greek river estuary (Dassenakis et al. [Pg.814]

Clay 1) Textural The term applied to sediment particles finer than silt particles having a diameter of smaller than 3.91 microns or sometimes 1.95 microns. 2) Mineralogical A poorly defined group of aluminum silicate minerals. [Pg.451]

Clay n Any naturally occurring sediment rich in hydrated silicates of aluminum, predominating in particles of colloidal or near-colloidal size. There are many types of clays and clay-like minerals. Those of particular interest to the plastics industry are varieties refined by nature and man to a state of good color and particle-size distribution, such as Kaolin (china clay). They are used as fillers in epoxy and polyester resins, PVC compounds, and urethane foams. Calcined clays are those that have been heated to a high temperature to drive off the chemically bound water, sometimes also surface-treated to improve their chemical inertness and moisture resistance. They are used primarily in vinyl insulation. See Aluminum Silicate, Kaolinite, and China Clay. [Pg.147]


See other pages where Sediment aluminum silicate is mentioned: [Pg.494]    [Pg.469]    [Pg.3525]    [Pg.3526]    [Pg.431]    [Pg.12]    [Pg.292]    [Pg.1130]    [Pg.202]    [Pg.431]    [Pg.3136]    [Pg.3163]    [Pg.3557]    [Pg.252]    [Pg.130]    [Pg.308]    [Pg.538]    [Pg.538]    [Pg.150]    [Pg.414]    [Pg.431]   
See also in sourсe #XX -- [ Pg.486 ]




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Aluminum silicates

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