Origin and metamorphic evolution of Fe-Mn-rich garnetites (coticules) in the Desná Unit (Silesicum, NE Bohemian Massif)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F12%3A33140401" target="_blank" >RIV/61989592:15310/12:33140401 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00025798:_____/12:00000259

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.chemer.2011.11.002" target="_blank" >http://dx.doi.org/10.1016/j.chemer.2011.11.002</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.chemer.2011.11.002" target="_blank" >10.1016/j.chemer.2011.11.002</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Origin and metamorphic evolution of Fe-Mn-rich garnetites (coticules) in the Desná Unit (Silesicum, NE Bohemian Massif)

Popis výsledku v původním jazyce

The Fe-Mn-rich garnetites (coticules) associated with banded iron formations occur in the Neoproterozoic metamorphic complex of the Desná Unit. Their mineral assemblage consists of almandine-spessartine garnet, quartz, magnetite, epidote and sporadicallybiotite, chlorite, amphibole, plagioclase, calcite, ilmenite and apatite. The mineralogical, petrological and geochemical results demonstrate that the protolith of coticules and associated BIFs was formed during periods of submarine hydrothermal activity in the Late Proterozoic by differential precipitation of Fe and Mn from low-temperature solutions. The Fe-Mn-rich precipitates mixed to a varied degree with the detritic siliciclastic material. Subsequently the protolith underwent polyphase metamorphism reaching the amphibolite facies grade during the pre-Variscan (M1) and Variscan periods. The P-T conditions assumed for the peak Variscan metamorphism (M2) are T ?540-580 °C and P ?600 MPa, the M3 is characterized by an upper pressure l

Název v anglickém jazyce

Origin and metamorphic evolution of Fe-Mn-rich garnetites (coticules) in the Desná Unit (Silesicum, NE Bohemian Massif)

Popis výsledku anglicky

The Fe-Mn-rich garnetites (coticules) associated with banded iron formations occur in the Neoproterozoic metamorphic complex of the Desná Unit. Their mineral assemblage consists of almandine-spessartine garnet, quartz, magnetite, epidote and sporadicallybiotite, chlorite, amphibole, plagioclase, calcite, ilmenite and apatite. The mineralogical, petrological and geochemical results demonstrate that the protolith of coticules and associated BIFs was formed during periods of submarine hydrothermal activity in the Late Proterozoic by differential precipitation of Fe and Mn from low-temperature solutions. The Fe-Mn-rich precipitates mixed to a varied degree with the detritic siliciclastic material. Subsequently the protolith underwent polyphase metamorphism reaching the amphibolite facies grade during the pre-Variscan (M1) and Variscan periods. The P-T conditions assumed for the peak Variscan metamorphism (M2) are T ?540-580 °C and P ?600 MPa, the M3 is characterized by an upper pressure l

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

<a href="/cs/project/GP205%2F07%2FP130" target="_blank" >GP205/07/P130: Neoidní mineralizace na styku Českého masivu a Západních Karpat</a><br>

Návaznosti

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

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Chemie der Erde-Geochemistry

ISSN

0009-2819

e-ISSN

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Svazek periodika

72

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

18

Strana od-do

"219?236"

Kód UT WoS článku

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EID výsledku v databázi Scopus

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