Sentence examples for siliceous rock from inspiring English sources

The most common siliceous rock is chert, which is a dense, microcrystalline rock composed of chalcedony and quartz.

A systematic investigation of fluid flow characteristics within diatomite (a high porosity, low permeability, siliceous rock) is reported.

Thermal insulating materials include fibreglass, cork, and rock wool, a mineral wool that is produced by blowing a jet of steam through molten siliceous rock or limestone or through slag.

Highly abundant tetralins and norcadalene in oils suggest their non-clayey source rocks such as coal, carbonate or biogenic siliceous rock.

Siliceous rock aggregates commercially available in Japan were sampled from various regions and subjected to XRD (X-ray diffraction) analysis, thermal analysis, and volume change experiments.

Siliceous rock, any of a group of sedimentary rocks that consist largely or almost entirely of silicon dioxide (SiO2), either as quartz or as amorphous silica and cristobalite; included are rocks that have formed as chemical precipitates and excluded are those of detrital or fragmental origin.

Tridymite may occur as a primary magmatic phase (i.e., as a direct result of crystallization from a silicate melt) in siliceous rocks but is most abundant in voids in volcanic rocks where it probably was deposited metastably from hydrous gases.

The Monterey Formation and related siliceous rocks of California.

Siliceous rocks of the same age contain fossil algae and fungi.

It also occurs in granites, in fine-grained sediments, and in some highly siliceous rocks.

Similar siliceous rocks, called radiolarian earth and radiolarite, are formed from the latticelike opaline skeletons of Radiolaria.