Rb-Sr dating of basement rocks from the southem foreland of the Mecsek Mountains, Southeastern Transdanubia, Hungary

Kovács Ádám and Svingor Éva and Szederkényi Tibor: Rb-Sr dating of basement rocks from the southem foreland of the Mecsek Mountains, Southeastern Transdanubia, Hungary. In: Acta mineralogica-petrographica, (27). pp. 51-57. (1985)

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Abstract

Rb-Sr total rock and biotite age determinations have been carried out on samples from the borehole Baksa—2 disclosing sillimanite-grade metamorphic rocks of the Gorcsony Ridge (so called "Baksa Formation") at the northern margine of the Drava Basin in southeast Transdanubia. The 331 ± 13 Ma total rock isochron age is tentatively interpreted as the time of D! deformation immediately coupled to the dominant staurolite — kyanite — sillimanite grades (Barrowian) first phase of metamorphism. The overprinting second progressive metamorphic episod is characterized by high T medium P effects (D2 deformation) producing among others enstatite minerals in the ultramafics of Gyod as well as microgranitic-aplitic veins and segregations in the pelitic schists. Its age brackets of 331 and 315 Ma, followed by regional emergence and low-temperature retrograde effects probably due to prolongated uplift under low velocity conditions.

Item Type: Article
Journal or Publication Title: Acta mineralogica-petrographica
Date: 1985
Volume: 27
ISSN: 0365-8066
Page Range: pp. 51-57
Language: English
Publisher: University of Szeged, Department of Mineralogy, Geochemistry and Petrology
Place of Publication: Szeged
Related URLs: http://acta.bibl.u-szeged.hu/39405/
Uncontrolled Keywords: Kőzettan, Ásványtan, Földtan
Additional Information: Bibliogr.: p. 56-57. ; 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. 10:58
URI: http://acta.bibl.u-szeged.hu/id/eprint/24727

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