Petrographic study of the Mórágy-type granitoid and the Cserdi conglomerate at Nyugotszenterzsébet (Mecsek Mts., South Hungary)

Fehér T. and Molnár A.: Petrographic study of the Mórágy-type granitoid and the Cserdi conglomerate at Nyugotszenterzsébet (Mecsek Mts., South Hungary). In: Acta mineralogica-petrographica, (30). pp. 93-101. (1989)

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Abstract

The Upper Carboniferous Mórágy-type granitoids were formed by anatectic and metasomatic processes. The two macroscopically different types (medium grained granite and aplite) have the same origin. The aplite was developed in the fracture zones where the crushed rocks were potashmetasomatized more thoroughly than the surrounding granite. It has higher microcline, lower mafic mineral content and well developed cataclastic texture with more fine grained matrix than the enclosing granite. Studies of the morphology of zircon grains provided a well detectable evolutional trend from the anatectic restites to the medium grained granite. In the course of anatexis the zircon grains developed the typical low temperature types from high temperature ones. The source rocks of the Middle Permian Cserdi Conglomerate were Lower Permian rhyolites and granitoids of unknown age. The latter ones are strongly mylonitized but show the same metasomatic phenomena as the Mórágy-type granitoids. The zircon types of the granitoid pebbles of the conglomerate are anatectic ones. Our opinion is that they derived from an upper part of the Mórágy-type granitoid complex.

Item Type: Article
Journal or Publication Title: Acta mineralogica-petrographica
Date: 1989
Volume: 30
ISSN: 0365-8066
Page Range: pp. 93-101
Language: English
Publisher: University of Szeged, Department of Mineralogy, Geochemistry and Petrology
Place of Publication: Szeged
Related URLs: http://acta.bibl.u-szeged.hu/39408/
Uncontrolled Keywords: Kőzettan, Ásványtan, Földtan
Additional Information: Bibliogr.: 101. p. ; ill. ; összefoglalás angol nyelven
Subjects: 01. Natural sciences
01. Natural sciences > 01.05. Earth and related environmental sciences
Date Deposited: 2016. Oct. 17. 09:25
Last Modified: 2022. Jul. 26. 14:39
URI: http://acta.bibl.u-szeged.hu/id/eprint/24772

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