气候变化领域集成服务门户(CCPortal): Origin of deep-sea clastics of the Magura Basin (Eocene Makovica sandstones in the Outer Western Carpathians) with constraints of framework petrography; heavy mineral analysis and zircon geochronology

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DOI	10.1016/j.palaeo.2018.09.025
	Origin of deep-sea clastics of the Magura Basin (Eocene Makovica sandstones in the Outer Western Carpathians) with constraints of framework petrography; heavy mineral analysis and zircon geochronology
	Bónová K.; Bóna J.; Pańczyk M.; Kováčik M.; Mikuš T.; Laurinc D.
发表日期	2019
ISSN	0031-0182
起始页码	768
结束页码	784
卷号	514
英文摘要	Petrographic examination, heavy mineral analysis and detrital zircon U-Pb dating were performed on the Eocene siliciclastic rocks in the Rača Unit of the Outer Western Carpathians in order to reveal their origin and establish the development of the Magura Basin during the Eocene. The medium- to fine-grained sublitharenites and quartzarenites were mainly derived from extra-basinal sources, and the deposits predominantly contain minerals from metamorphic rocks. The terrigenous material was derived from low- to medium-grade metapelites and granitoids. The sedimentation was also controlled by a sediment supply from the mafic source. The basic and metabasic rocks contain pyrope-rich garnets and Cr-spinels. Palaeo-currents document that the sedimentary material was supplied from the South-East. The first detrital zircon U-Pb ages confirm zircon-producing events occurring in the Proterozoic from approximately 2200 to 590 Ma; but predominantly in the Paleozoic between 550 and 60 Ma. The palaeocurrent indicators, petrographic data, heavy mineral spectra and zircon geochronology strongly suggest that the Tisza Mega-Unit Variscan crystalline basement erosion with accompanying sedimentary cover supplied the Magura Basin from the South. The Mecsek Zone is also suggested to support the Villáni-Bihor and part of the Békes-Codru zones in supplying the Magura Basin during the Eocene to Oligocene. The Eocene transport of significant detrital material to the Magura Basin is also related to erosion of the Marmarosh Massif Proterozoic–Ordovician low- to medium-grade crystalline basement. Therefore, it is most likely that Magura Basin sedimentation was dominated by supply from the sub-ophiolitic Fore-Marmarosh Suture Zone of the Eastern Carpathians. © 2018 Elsevier B.V.
英文关键词	Carpathians; Heavy minerals; Magura Basin; Palaeogeography; Source area; U-Pb zircon dating
语种	英语
scopus关键词	deep sea; Eocene; Eocene-Oligocene boundary; geochemistry; geochronology; heavy mineral; Hercynian orogeny; mafic rock; metamorphic rock; Ordovician; paleocurrent; paleogeography; Paleozoic; petrography; Proterozoic; sandstone; sedimentation; siliciclastic deposit; uranium-lead dating; zircon; Bihor; Carpathians; Eastern Carpathians; Magura Basin; Romania; Western Carpathians
来源期刊	Palaeogeography, Palaeoclimatology, Palaeoecology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/151180
作者单位	Institute of Geography, Faculty of Science, Pavol Jozef Šafárik University in Košice, Jesenná 5, Košice, 040 01, Slovakia; Polish Geological Institute – National Research Institute, 4 Rakowiecka St., Warszawa, 00-975, Poland; Earth Science Institute, Slovak Academy of Sciences, Geological Division, Ďumbierska 1, Banská Bystrica, 974 01, Slovakia; State Geological Institute of Dionýz Štúr, Mlynská dolina 1, Bratislava, 817 04, Slovakia
推荐引用方式 GB/T 7714	Bónová K.,Bóna J.,Pańczyk M.,et al. Origin of deep-sea clastics of the Magura Basin (Eocene Makovica sandstones in the Outer Western Carpathians) with constraints of framework petrography; heavy mineral analysis and zircon geochronology[J],2019,514.
APA	Bónová K.,Bóna J.,Pańczyk M.,Kováčik M.,Mikuš T.,&Laurinc D..(2019).Origin of deep-sea clastics of the Magura Basin (Eocene Makovica sandstones in the Outer Western Carpathians) with constraints of framework petrography; heavy mineral analysis and zircon geochronology.Palaeogeography, Palaeoclimatology, Palaeoecology,514.
MLA	Bónová K.,et al."Origin of deep-sea clastics of the Magura Basin (Eocene Makovica sandstones in the Outer Western Carpathians) with constraints of framework petrography; heavy mineral analysis and zircon geochronology".Palaeogeography, Palaeoclimatology, Palaeoecology 514(2019).