DOI: 10.1007/s00531-013-0993-2
Scopus记录号: 2-s2.0-84896546901
论文题名: From Cadomian arc to Ordovician passive margin: Geochemical records preserved in metasedimentary successions of the Orlica-Śnieżnik Dome in SW Poland
作者: Szczepański J. ; Ilnicki S.
刊名: International Journal of Earth Sciences
ISSN: 14373254
出版年: 2014
卷: 103, 期: 3 起始页码: 627
结束页码: 647
语种: 英语
英文关键词: Cadomian orogeny
; Early Palaeozoic
; Provenance
; Sudetes
; Trace-element geochemistry of metasediments
; Variscan Belt
Scopus关键词: Cadomian orogeny
; chemical composition
; geochemistry
; Hercynian orogeny
; metasediment
; Ordovician
; passive margin
; provenance
; trace element
; Bohemian Massif
; Orlica Mountains
; Poland
; Snieznik Mountains
; Sudetes
英文摘要: The chemical composition of metamorphosed siliciclastic rocks in the Orlica-Śnieżnik Dome (Bohemian Massif) identifies the main sources for the Neoproterozoic [the Młynowiec Formation (MF)], Early Cambrian [the Stronie Formation (SF)] and Late Cambrian/Early Ordovician [the Goszów quartzites (GQ)] sediments. The MF developed from erosion of a Cadomian magmatic arc along the northern Gondwana margin. The variegated SF, with supra-subduction affinities, shows chemical characteristics pointing to erosion of the freshly exhumed Cadomian orogen and detritus deposition in the back-arc basin. The very different chemical features of the GQ indicate deposition in a basin sited on a passive continental margin. The explanation proposed for the observed changes in chemical composition involves three main stages: (1) The pre ~540 Ma evolution of an active continental margin and related back-arc basin ceased with the collision and accretion of the magmatic arc to the Gondwana margin; (2) Early Cambrian rift to drift transition (540-500 Ma) and development of a depositional basin filled with detritus derived from remnants of the magmatic arc; (3) Peri-Gondwana break-up leading to the formation of shallow-water passive margin depositional basins filled with quartz-rich detritus resembling Early Ordovician Armorican quartzites known from other parts of the Variscan Belt. © 2014 The Author(s). URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84896546901&doi=10.1007%2fs00531-013-0993-2&partnerID=40&md5=091f259f72cf498c1401cdf6e218a0ef
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/70377
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
There are no files associated with this item.
作者单位: Institute of Geological Sciences, University of Wroclaw, Pl. Maksa Borna 9, 50-204 Wrocław, Poland; Institute of Geochemistry, Mineralogy and Petrology, University of Warsaw, Al. Zwirki i Wigury 93, 02-089 Warsaw, Poland
Recommended Citation:
Szczepański J.,Ilnicki S.. From Cadomian arc to Ordovician passive margin: Geochemical records preserved in metasedimentary successions of the Orlica-Śnieżnik Dome in SW Poland[J]. International Journal of Earth Sciences,2014-01-01,103(3)