DOI: 10.1007/s00531-013-0863-y
Scopus记录号: 2-s2.0-84878941521
论文题名: Sequential granite emplacement: A structural study of the late Variscan Strzelin intrusion, SW Poland
作者: Oberc-Dziedzic T. ; Kryza R. ; Pin C. ; Madej S.
刊名: International Journal of Earth Sciences
ISSN: 14373254
出版年: 2013
卷: 102, 期: 5 起始页码: 1289
结束页码: 1304
语种: 英语
英文关键词: Granite tectonics
; Hans Cloos
; Strzelin Massif
; Variscan granitoids
Scopus关键词: brittle deformation
; displacement
; emplacement
; foliation
; granite
; granitoid
; Hercynian orogeny
; igneous intrusion
; muscovite
; strike-slip fault
; tectonic evolution
; tectonic setting
; Poland
英文摘要: The Strzelin Massif in SW Poland (Central European Variscides) records a protracted igneous evolution, with three main magmatic stages: (1) tonalitic I, (2) granodioritic and (3) tonalitic II/granitic. In the northern part of this Massif, the Strzelin intrusion proper comprises three successively emplaced rock types: a medium-grained biotite granite (303 ± 2 Ma), a fine-grained biotite granite (283 ± 8 Ma) and a fine-grained biotite-muscovite granite; based on field evidence, the third variety postdates both types of the biotite granites. The structural data from the three granites, including their parallel, approximately E-W striking and steeply dipping lithological contacts and ENE-WSW trending subhorizontal magmatic lineations, suggest that the emplacement of all three successive granite varieties was controlled by an active, long-lived strike-slip fault, striking ESE-WNW, with a dextral sense of movement. After the emplacement of the youngest biotite-muscovite granite, the intrusion underwent brittle extension which produced "Q joints" striking NNW-SSE to N-S and dipping at 55-70° WSW to W, and showing evidence of broadly N-S directed sinistral displacements. The structural observations, supported by new geochronological data, indicate that the internal structure of the composite granitoid intrusion, including the faint magmatic foliation and lineation, formed in a long-lived strike-slip setting, different from the subsequent, post-emplacement extensional tectonics that controlled the development of brittle structures. © 2013 The Author(s). URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84878941521&doi=10.1007%2fs00531-013-0863-y&partnerID=40&md5=c2224911f67f2f2a9716114624a06bdd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/70537
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Institute of Geological Sciences, University of Wrocław, Plac M. Borna 9, 50-204 Wrocław, Poland; Département de Géologie, CNRS, Université Blaise Pascal, 5 rue Kessler, 63038 Clermont-Ferrand Cedex, France
Recommended Citation:
Oberc-Dziedzic T.,Kryza R.,Pin C.,et al. Sequential granite emplacement: A structural study of the late Variscan Strzelin intrusion, SW Poland[J]. International Journal of Earth Sciences,2013-01-01,102(5)