EXPERIMENTAL STUDY OF ANISOTROPY OF QUARTZ DISSOLUTION AND ITS ROLE IN FLUID MIGRATION IN ROCKS

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F16%3A00093876" target="_blank" >RIV/00216224:14310/16:00093876 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.13168/AGG.2016.0001" target="_blank" >http://dx.doi.org/10.13168/AGG.2016.0001</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.13168/AGG.2016.0001" target="_blank" >10.13168/AGG.2016.0001</a>

Result language
angličtina
Original language name
EXPERIMENTAL STUDY OF ANISOTROPY OF QUARTZ DISSOLUTION AND ITS ROLE IN FLUID MIGRATION IN ROCKS
Original language description
Quartz dissolution in hydrothermal-metasomatic processes is common feature in magmatic and metamorphic quartz rich rocks. This experimental work aims to compare the dissolution of individual quartz faces and to clarify the role of mechanical defects in quartz grain dissolution. Two types of experiments were made to define the dissolution anisotropy: hydrothermal experiments (quartz-distilled water) and chemical dissolution (quartz - 40 % hydrofluoric acid). Hydrothermal experiments using various types of quartz samples as well as chemical dissolution of quartz faces show that quartz dissolution is an anisotropic process. The solubility of rhombs is higher than that of prism faces. At lower temperatures the separated etch pits develop and with increasing temperature the etch pits start to link and the continuous striations (prisms) or overlapping arrows (rhombs) are observed. Such a surface structure may facilitate fluid migration through a solid rock.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DB - Geology and mineralogy
OECD FORD branch
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Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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