Termodynamický model pro titanový a železitý pevný roztok biotitu

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F09%3A00000016" target="_blank" >RIV/00025798:_____/09:00000016 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

A thermodynamic model for titanium and ferric iron solution in biotite

Popis výsledku v původním jazyce

Recent crystallographic data indicate that in biotite Ti and Fe3+ order preferentially onto the M2 octahedral site rather than onto the M1 site as assumed in previous solution models for K2O?FeO?MgO?Al2O3?SiO2?H2O?TiO2?O2 (KFMASHTO) biotite. In view of these data, we reformulate and reparameterize the former biotite solution model. Our reparameterization takes into account Fe-Mg order-disorder and ferric iron contents of natural biotites as well as both natural and experimental observations on biotite Ti-content over a wide range of physicochemical conditions. In comparison to previous biotite models, the new model reproduces the Ti-content and stability field of biotite as constrained by experiments with significantly better accuracy. The predictive power of the model is tested by comparison with petrologically well-characterized natural samples of SiO2-saturated and SiO2-undersaturated rocks that were not used in the parameterization. In all of these tests, the reformulated model per

Název v anglickém jazyce

A thermodynamic model for titanium and ferric iron solution in biotite

Popis výsledku anglicky

Recent crystallographic data indicate that in biotite Ti and Fe3+ order preferentially onto the M2 octahedral site rather than onto the M1 site as assumed in previous solution models for K2O?FeO?MgO?Al2O3?SiO2?H2O?TiO2?O2 (KFMASHTO) biotite. In view of these data, we reformulate and reparameterize the former biotite solution model. Our reparameterization takes into account Fe-Mg order-disorder and ferric iron contents of natural biotites as well as both natural and experimental observations on biotite Ti-content over a wide range of physicochemical conditions. In comparison to previous biotite models, the new model reproduces the Ti-content and stability field of biotite as constrained by experiments with significantly better accuracy. The predictive power of the model is tested by comparison with petrologically well-characterized natural samples of SiO2-saturated and SiO2-undersaturated rocks that were not used in the parameterization. In all of these tests, the reformulated model per

Druh

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

CEP obor

DB - Geologie a mineralogie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

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

Název periodika

Journal of Metamorphic Geology

ISSN

0263-4929

e-ISSN

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Svazek periodika

27

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

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Kód UT WoS článku

263255600005

EID výsledku v databázi Scopus

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