气候变化领域集成服务门户(CCPortal): Provenance and Variscan low-grade regional metamorphism recorded in slates from the basement of the (SW Hungary)

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DOI	10.1007/s00531-019-01720-y
	Provenance and Variscan low-grade regional metamorphism recorded in slates from the basement of the (SW Hungary)
	Mészáros E.; Varga A.; Raucsik B.; Benkó Z.; Heincz A.; Hauzenberger C.A.
发表日期	2019
ISSN	14373254
起始页码	1571
结束页码	1593
卷号	108 期号:5
英文摘要	A metapelitic sequence with Silurian protolith from the Horváthertelend Unit (Tisza Mega-unit, Hungary) has a K-white mica + chlorite + quartz + albite + anatase ± tourmaline mineral assemblage. Moderately developed disjunctive and well-developed continuous foliations are present. Geochemical results reflect a dominantly felsic source of the protoliths, suggesting an intermediate to acidic volcanic arc in the provenance area. Metasandstone pebbles in the metaconglomerate indicate a recycled sedimentary source. Raman spectroscopy of carbonaceous material indicates a ~ 350‒370 °C peak metamorphic temperature. The Kübler Index (KIBasel) values of the phengitic K-white mica indicate epizonal metamorphism (0.22 ± 0.04 Δ°2θ). The Chlorite ‘Crystallinity’ Index (ChCCIS) suggests metamorphic alteration near to the anchizone‒epizone boundary (0.31 ± 0.06 Δ°2θ). K–Ar ages of K-white mica are interpreted as a result of Variscan metamorphism (c. > 310 Ma) and post-Variscan uplift (c. 290 Ma). The predominance of lydite and slate of Llandoverian age and the overlying coarse-grained metagreywacke and metaconglomerate beds of the Szalatnak Slate Formation show strong lithological similarities with the proximal Silurian sequences in the Małopolska Massif (Kielce Region, Holy Cross Mountains, Poland). The original position of the Horváthertelend Unit is presumably to the northeast from the Bohemian Massif, next to the Upper Silesian Block (Moravo-Silesian Zone) and the Małopolska Terrane. © 2019, The Author(s).
英文关键词	Carbonaceous material; K-white mica; Palaeogeography; Provenance; Tisza Mega-unit; Variscan metamorphism
语种	英语
scopus关键词	Hercynian orogeny; metamorphism; metapelite; mica; paleogeography; protolith; provenance; Silurian; Hungary
来源期刊	International Journal of Earth Sciences
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/147827
作者单位	‘Vulcano’ Petrology and Geochemistry Research Group, Department of Mineralogy, Geochemistry and Petrology, University of Szeged, Egyetem utca 2, Szeged, 6722, Hungary; Isotope Climatology and Environmental Research Centre, Institute for Nuclear Research, Hungarian Academy of Sciences, Bem tér 18/c, Debrecen, 4026, Hungary; Institute of Earth Science, University of Graz, Universitätsplatz 2., Graz, 8010, Austria
推荐引用方式 GB/T 7714	Mészáros E.,Varga A.,Raucsik B.,et al. Provenance and Variscan low-grade regional metamorphism recorded in slates from the basement of the (SW Hungary)[J],2019,108(5).
APA	Mészáros E.,Varga A.,Raucsik B.,Benkó Z.,Heincz A.,&Hauzenberger C.A..(2019).Provenance and Variscan low-grade regional metamorphism recorded in slates from the basement of the (SW Hungary).International Journal of Earth Sciences,108(5).
MLA	Mészáros E.,et al."Provenance and Variscan low-grade regional metamorphism recorded in slates from the basement of the (SW Hungary)".International Journal of Earth Sciences 108.5(2019).