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
The result's identifiers
Result code in 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>
Alternative codes found
RIV/00025798:_____/19:00000284
Result on the web
<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>
Alternative languages
Result language
angličtina
Original language name
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
Original language description
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.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10505 - Geology
Result continuities
Project
<a href="/en/project/GA18-03160S" target="_blank" >GA18-03160S: Pre- to syncollisional history of metamorphic rocks in orogenic zone recorded by chemical zoning in garnet; with application to the Bohemian Massif</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Geosciences (Switzerland) [online]
ISSN
2076-3263
e-ISSN
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Volume of the periodical
9
Issue of the periodical within the volume
3
Country of publishing house
CH - SWITZERLAND
Number of pages
21
Pages from-to
104
UT code for WoS article
000474772200001
EID of the result in the Scopus database
2-s2.0-85069489649