Metamorphic history of the Algyő High (Tisza Mega-unit, basement of Great Hungarian Plain) - a counterpart of crystalline units of the Koralpe-Wölz nappe system (Austroalpine, Eastern Alps)

Gyöngyi Lelkes-Felvári; Ralf Schuster; Wolfgang Frank; Raffaele Sassi

doi:10.1556/ageol.48.2005.4.2

Acta Geologica Hungarica

Volume/Issue:: Volume 48: Issue 4

Metamorphic history of the Algyő High (Tisza Mega-unit, basement of Great Hungarian Plain) - a counterpart of crystalline units of the Koralpe-Wölz nappe system (Austroalpine, Eastern Alps)

Authors:

Gyöngyi Lelkes-Felvári

Gyöngyi Lelkes-Felvári Hungarian Natural History Museum H-1083 Budapest, Ludovika tér 2, Hungary

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Ralf Schuster

Ralf Schuster Geological Survey of Austria A-1031 Wien, Neulinggasse 38, Austria

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Wolfgang Frank

Wolfgang Frank University of Vienna A-1090 Wien, Althanstr. 14, Austria

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Raffaele Sassi

Raffaele Sassi Department of Mineralogy, University of Padova I-35122 Padova, Corso Garibaldi 37, Italy

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Pages:: 371–394

Online Publication Date:: 07 Feb 2006

Publication Date:: 01 Dec 2005

Article Category:: Research Article

DOI:: https://doi.org/10.1556/ageol.48.2005.4.2

Keywords:: mineral chemistry; Eastern Alps; Tisza Mega-unit; Algyő basement high; Dorozsma Complex; Austroalpine; Saualpe-Koralpe Complex; metamorphism

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The Dorozsma Complex (DC) is defined and its main lithologies are described. The complex makes up the bulk of the Algyõ basement high, representing an outlier of a Cretaceous nappe system in the southernmost part of the Tisza Mega-unit (Great Hungarian Plain). The DC exhibits a polymetamorphic history characterized by a Permian, low-pressure amphibolite facies metamorphism, overprinted by a pressure-dominated eo-Alpine, amphibolite facies metamorphism, accompanied by penetrative mylonitization. "Carboniferous breccias" described by earlier authors and covering the metamorphic rocks sporadically are redefined as tectonized, mostly cataclastic rocks. The uppermost unit of the basement below the Neogene sediments is a nappe composed of Triassic clastic and carbonate sediments. Petrographic similarities of the DC with several units of the Koralpe-Wölz nappe system in the Eastern Alps indicate that both units were formed within a continuous belt in the Cretaceous.

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Acta Geologica Hungarica

Print ISSN:: 0236-5278

Online ISSN:: 1588-2594

Acta Geologica Hungarica
Language	English
Size
Year of Foundation	1952
Publication Programme	changed title
Volumes per Year
Issues per Year
Founder	Magyar Tudományos Akadémia
Founder's Address	H-1051 Budapest, Hungary, Széchenyi István tér 9.
Publisher	Akadémiai Kiadó
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0236-5278 (Print)
ISSN	1588-2594 (Online)