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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DB - Geologie a mineralogie

OECD FORD obor

—

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Acta Geodynamica et Geomaterialia

ISSN

1214-9705

e-ISSN

—

Svazek periodika

13

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

8

Strana od-do

193-200

Kód UT WoS článku

000377623200008

EID výsledku v databázi Scopus

—