In geology, silicification is a petrification process in which silica-rich fluids seep into the voids of Earth materials, e.g., rocks, wood, bones, shells...

the water. Two common types of permineralization are silicification and pyritization. Silicification is the process in which organic matter becomes saturated...

decomposes, so that cell walls are often preserved in great detail. Thus silicification begins within the cell walls, and the spaces within and between cells...

remain intact surrounding the crystals.[need quotation to verify] In silicification, the weathering of rocks releases silicate minerals and the silica makes...

characterisations of the biochemical processes and components involved in diatom silicification were made in the late 1990s. These were followed by insights into how...

Slate Pyritized Tornoceras uniangulare from Ludlowville Formation In silicification, the precipitation of silica from saturated water bodies is crucial...

the sediments. Silicification occurs early in diagenesis, at low pH and temperature, and contributes to fossil preservation. Silicification takes place through...

dissolution. The resulting fluids were also responsible for subsequent silicification and hydrothermal infilling. To the best of our knowledge, karst collapse...

supplementary cementitious material (SCM) in cement and concrete manufacturing. Silicification in and by cells has been common in the biological world and it occurs...

calcification calcareous nannoplankton Siliceous ooze biogenic silica silicification diatomaceous earth radiolarite Microfossil Reverse weathering Sedimentary...

calcification calcareous nannoplankton Siliceous ooze biogenic silica silicification diatomaceous earth radiolarite Microfossil Reverse weathering Sedimentary...

present in all eukaryotic supergroups. Notwithstanding, the degree of silicification can vary even between closely related taxa, from being found in composite...

Calcite microbial calcite precipitation calcite sea Great Calcite Belt Silicification biogenic silica siliceous ooze diatomaceous earth Other forms Bone bed...

thought to have formed during Neogene to Quaternary weathering by the silicification of Upper Paleocene Lambeth Group sediments, resulting from acid leaching...

(September 2015). "Fossil preservation through phosphatization and silicification in the Ediacaran Doushantuo Formation (South China): a comparative synthesis"...

more than one of these alterations is in progress in the same rock. Silicification, the replacement of the minerals by crystalline or crypto-crystalline...

Calcite microbial calcite precipitation calcite sea Great Calcite Belt Silicification biogenic silica siliceous ooze diatomaceous earth Other forms Bone bed...

Hanor, J. S. (September 1987). "Origin and timing of the metasomatic silicification of an early Archaean komatiite sequence, Barberton Mountain Land, South...

Calcite microbial calcite precipitation calcite sea Great Calcite Belt Silicification biogenic silica siliceous ooze diatomaceous earth Other forms Bone bed...

Calcite microbial calcite precipitation calcite sea Great Calcite Belt Silicification biogenic silica siliceous ooze diatomaceous earth Other forms Bone bed...

research, supervised by Robert Williams where her research investigated silicification in biological systems. Perry moved to St Hilda's College, Oxford as...

hydrate (abbreviated as C-S-H in the cement chemist notation). This silicification reaction of calcium hydroxide on its turn continuously releases again...

Calcite microbial calcite precipitation calcite sea Great Calcite Belt Silicification biogenic silica siliceous ooze diatomaceous earth Other forms Bone bed...

Calcite microbial calcite precipitation calcite sea Great Calcite Belt Silicification biogenic silica siliceous ooze diatomaceous earth Other forms Bone bed...

period" of weathering under non-glacial conditions may be a requirement. Silicification of peneplain surfaces exposed to sub-tropical and tropical climate for...

2017. Raven, J. A.; Waite, A. M. (1 April 2004). "The evolution of silicification in diatoms: inescapable sinking and sinking as escape?". New Phytologist...

Calcite microbial calcite precipitation calcite sea Great Calcite Belt Silicification biogenic silica siliceous ooze diatomaceous earth Other forms Bone bed...

effects. Other post-depositional alteration includes pyritization, silicification, and alteration of titanium minerals. The most prominent geochemical...

(Aurelian Exploration Manager Steve Leary) and the observation that some silicification of these basin sediments had occurred at Fruta del Norte by geologist...

Sanggwanggyo-dong in northern Suwon. This gneiss has primarily undergone silicification, and is mainly composed of quartz, feldspar, biotite, and muscovite...