silicification


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Related to silicification: petrifying

silicification

[sə‚lis·ə·fə′kā·shən]
(geology)
Introduction of or replacement by silica. Also known as silification.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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Both the Shepherds Bush and the Spotted Dog Prospects are topographically dominated by a ridge of outcropping chert and ironstone, with zones of brecciation, silicification and quartz veining along the strike of this unit.
Alt Resources Ltd (ASX:ARS) Shepherds Bush Intercepts Broad Gold Zones
4a, b, c and e), showing an alteration zone, from the proximal mines with silicification, pyritization and adularization to the distal mines with sericitization, illitization and propylitization.
Characteristics of genetic mineralogy of pyrite and quartz and their indicating significance in the Gaosongshan Gold Deposit, Heilongjiang Province, NE China/Caracteristicas de mineralogia genetica de piritas y cuarzos y su importancia en el yacimiento aurifero de Gaosongshan, Provincia de Heilongjiang, al noreste de China
The wide variety of modes of silicification of baksteenkalk fossils, in particular algae, points to a complicated process.
Typology and fossil assemblage of Sandbian (Ordovician) 'baksteenkalk': an erratic silicified limestone of Baltic origin from the northeastern Netherlands and adjacent areas of Germany
Generally, K and other metal constituents are added to the mass rock by hydrothermal solutions, and it is easily observed in mafic/ultramafic units or along lithologic contacts where hydrothermal alteration such as silicification is intensive.
Hydrothermal zones detection using airborne magnetic and gamma ray spectrometric data of mafic/ultramafic rocks at Gabal El-Rubshi area, Central Eastern Desert (CED), Egypt
But, the high level of lignification and silicification, the slow and limited ruminal degradation of the carbohydrates and the low content of nitrogen are the main deficiencies of rice straw, affecting its value as feed for ruminants (5).
Statistical optimization of the production of [alpha]-amylase from bacillus licheniformis MTCC 1483 using paddy straw as substrate
The host rocks are characterized by silicification and biotite alterations which are associated with sulphides such as chalcopyrite and pyrite.
GEOPHYSICAL PROSPECTING FOR SULPHIDE MINERALS IN BARIT-DANYORE NALA, GILGIT BALTISTAN, PAKISTAN
The company collected 272 soil/ talus and 325 rock samples over exposed bodies of silicification at Orange Mountain, silicified and mineralized structures located between Orange Mountain and Shuma gin, and exposures of multi-phase breccias and additional structures at Shumagin.
Alaska 2016--mining in review
Silicification of fossils from selected Paleozoic formations in West Tennessee.
Student presentation awards at the 125th Meeting of the Tennessee Academy of Science

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