Petrology and geochemistry of the Tertiary alkaline intrusive rocks at Doupov, Doupovské hory Volcanic Complex (NW Bohemian Massif)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F10%3A10081515" target="_blank" >RIV/00216208:11310/10:10081515 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00025798:_____/10:00000285

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Petrology and geochemistry of the Tertiary alkaline intrusive rocks at Doupov, Doupovské hory Volcanic Complex (NW Bohemian Massif)

Popis výsledku v původním jazyce

Geochemical variations suggest that the essexitic rocks and sodalite syenitoids do not form a common evolutionary line with nephelinolites. Nephelinolites are isotopically close to the EAR or CMR compositions and interaction of their parental magmas withthe continental crust was negligible. Magmatic evolution of nephelinolites was dominated by fractionation of clinopyroxene accompanied at the early stage by olivine and later by titanite, magnetite and apatite. Essexite is isotopically more different though still within the field of mafic lavas from DHVC. Either its parental magma originated in heterogeneous mantle with more distinct lithospheric signature or this magma reacted with the continental crust during its ascent and fractionation. Sodalite monzosyenite displays significantly higher 87Sr/86Sr ratios. The K-Ar ages of intrusive rocks from Doupov are 30-29 Ma.

Název v anglickém jazyce

Petrology and geochemistry of the Tertiary alkaline intrusive rocks at Doupov, Doupovské hory Volcanic Complex (NW Bohemian Massif)

Popis výsledku anglicky

Geochemical variations suggest that the essexitic rocks and sodalite syenitoids do not form a common evolutionary line with nephelinolites. Nephelinolites are isotopically close to the EAR or CMR compositions and interaction of their parental magmas withthe continental crust was negligible. Magmatic evolution of nephelinolites was dominated by fractionation of clinopyroxene accompanied at the early stage by olivine and later by titanite, magnetite and apatite. Essexite is isotopically more different though still within the field of mafic lavas from DHVC. Either its parental magma originated in heterogeneous mantle with more distinct lithospheric signature or this magma reacted with the continental crust during its ascent and fractionation. Sodalite monzosyenite displays significantly higher 87Sr/86Sr ratios. The K-Ar ages of intrusive rocks from Doupov are 30-29 Ma.

Druh

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

CEP obor

DD - Geochemie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název periodika

Journal of Geosciences

ISSN

1802-6222

e-ISSN

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Svazek periodika

55

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

28

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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