Simultaneous free flow and forcefully driven movement of magma in lamprophyre dykes as indicated by magnetic anisotropy: Case study from the Central Bohemian Dyke Swarm, Czech Republic
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F19%3A10394510" target="_blank" >RIV/00216208:11310/19:10394510 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/00025798:_____/19:00000284
Výsledek na webu
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=8Hx0iGy-vV" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=8Hx0iGy-vV</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/geosciences9030104" target="_blank" >10.3390/geosciences9030104</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Simultaneous free flow and forcefully driven movement of magma in lamprophyre dykes as indicated by magnetic anisotropy: Case study from the Central Bohemian Dyke Swarm, Czech Republic
Popis výsledku v původním jazyce
A composite lamprophyre dyke from the Central Bohemian Dyke Swarm (Czech Republic) shows both indications of magma free flow (normal magnetic fabric with magnetic foliation and lineation parallel to the dyke plane) as well as those of forcefully driven magma movement (intermediate and inverse magnetic fabrics with magnetic foliation perpendicular to the dyke plane). The overall characteristics of the magnetic parameters across the dyke indicate the existence of at least two slightly differing parts that probably represent two magma pulses. The marginal part of the dyke is formed by kersantite, while toward the axial part, the composition gradually changes to spessartite, and obtains an increasing degree of amphibolization. The rocks of the dyke are inhomogeneous, both compositionally and structurally. It is likely that some portions of ascending magma were more viscous than the others, and the magnetic minerals in the more viscous magma portions may have oriented according to their longer dimensions perpendicular to the dyke, creating an inverse fabric. The lengthening perpendicular to the dyke was compensated by the vertical escape of neighboring more fluid magma, creating a normal magnetic fabric. The frequent oblique magnetic fabrics may represent transitions between the above two mechanisms.
Název v anglickém jazyce
Simultaneous free flow and forcefully driven movement of magma in lamprophyre dykes as indicated by magnetic anisotropy: Case study from the Central Bohemian Dyke Swarm, Czech Republic
Popis výsledku anglicky
A composite lamprophyre dyke from the Central Bohemian Dyke Swarm (Czech Republic) shows both indications of magma free flow (normal magnetic fabric with magnetic foliation and lineation parallel to the dyke plane) as well as those of forcefully driven magma movement (intermediate and inverse magnetic fabrics with magnetic foliation perpendicular to the dyke plane). The overall characteristics of the magnetic parameters across the dyke indicate the existence of at least two slightly differing parts that probably represent two magma pulses. The marginal part of the dyke is formed by kersantite, while toward the axial part, the composition gradually changes to spessartite, and obtains an increasing degree of amphibolization. The rocks of the dyke are inhomogeneous, both compositionally and structurally. It is likely that some portions of ascending magma were more viscous than the others, and the magnetic minerals in the more viscous magma portions may have oriented according to their longer dimensions perpendicular to the dyke, creating an inverse fabric. The lengthening perpendicular to the dyke was compensated by the vertical escape of neighboring more fluid magma, creating a normal magnetic fabric. The frequent oblique magnetic fabrics may represent transitions between the above two mechanisms.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10505 - Geology
Návaznosti výsledku
Projekt
<a href="/cs/project/GA18-03160S" target="_blank" >GA18-03160S: Před- až synkolizní vývoj metamorfovaných hornin v orogenní zóně zaznamenaný chemickou zonálností v granátu; na příkladu Českého masívu</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2019
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Geosciences (Switzerland) [online]
ISSN
2076-3263
e-ISSN
—
Svazek periodika
9
Číslo periodika v rámci svazku
3
Stát vydavatele periodika
CH - Švýcarská konfederace
Počet stran výsledku
21
Strana od-do
104
Kód UT WoS článku
000474772200001
EID výsledku v databázi Scopus
2-s2.0-85069489649