气候变化领域集成服务门户(CCPortal): Surface microtextures and new U–Pb dating of detrital zircons from the Eocene Strihovce sandstones in the Magura Nappe of the External Western Carpathians: implications for their provenance

CCPortal

DOI	10.1007/s00531-020-01859-z
	Surface microtextures and new U–Pb dating of detrital zircons from the Eocene Strihovce sandstones in the Magura Nappe of the External Western Carpathians: implications for their provenance
	Bónová K.; Pańczyk M.; Bóna J.
发表日期	2020
ISSN	14373254
起始页码	1565
结束页码	1587
卷号	109 期号:5
英文摘要	Heavy mineral morphological, chemical and isotopic features are strong discriminative parameters in provenance studies. This paper focuses on the micro-textural signatures of detrital zircon grains obtained by scanning electron microscope (SEM) and U–Pb geochronological dating from the Strihovce Formation sandstones of the Magura Nappe in the External Western Carpathians. Our focus provides an important contribution to understanding the provenance of these sedimentary rocks. Although the SEM images reveal few dissolution features, they highlight many marks of mechanical processes which occur during detrital zircon transport. The detrital zircon U–Pb ages range from Mesoarchean–Neoproterozoic through Cambrian to Permian and Late Cretaceous. The pronounced peak at approximately 480 Ma Ordovician indicates the culmination of the peri-Gondwanan magmatic event. In conjunction with Archean to Proterozoic zircon inheritance, it implies Cadomian affinity of the potential source terranes which supplied the Magura Basin. The approximate ages of 379 Ma for the Late Devonian peak and 264 Ma for the Permian relate to widespread magmatism and/or rhyolite volcanism. These sources could be associated with the Carpathian basement units and the Apuseni terranes of the Tisza/Dacia mega-units. Most importantly, the sub-hedral Proterozoic zircons may signal the input of ‘first-cycle’ material from relatively closer surroundings, including the South-Magura Ridge to the Magura Basin. © 2020, Geologische Vereinigung e.V. (GV).
英文关键词	External Western Carpathians; Magura nappe; Provenance; Surface micro-textures; U–Pb geochronology; Zircon
语种	英语
scopus关键词	detrital deposit; dissolution; Eocene; microstructure; nappe; provenance; sandstone; scanning electron microscopy; uranium-lead dating; zircon; Carpathians; Western Carpathians
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/147666
作者单位	Institute of Geography, Faculty of Science, Pavol Jozef Šafárik University, Jesenná 5, Košice, 040 01, Slovakia; Polish Geological Institute-National Research Institute, 4 Rakowiecka St., Warsaw, 00-975, Poland
推荐引用方式 GB/T 7714	Bónová K.,Pańczyk M.,Bóna J.. Surface microtextures and new U–Pb dating of detrital zircons from the Eocene Strihovce sandstones in the Magura Nappe of the External Western Carpathians: implications for their provenance[J],2020,109(5).
APA	Bónová K.,Pańczyk M.,&Bóna J..(2020).Surface microtextures and new U–Pb dating of detrital zircons from the Eocene Strihovce sandstones in the Magura Nappe of the External Western Carpathians: implications for their provenance.International Journal of Earth Sciences,109(5).
MLA	Bónová K.,et al."Surface microtextures and new U–Pb dating of detrital zircons from the Eocene Strihovce sandstones in the Magura Nappe of the External Western Carpathians: implications for their provenance".International Journal of Earth Sciences 109.5(2020).