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DOI	10.1007/s00531-019-01794-8
	Strain pattern and vorticity analysis of deformed conglomerates in the Heneshk area within the Sanandaj–Sirjan Metamorphic Belt; Zagros Mountains; Iran
	Samani B.; Faghih A.; Grasemann B.
发表日期	2020
ISSN	14373254
起始页码	145
结束页码	157
卷号	109 期号:1
英文摘要	Strain measurements have been carried out, using the Rf/ϕ method on a Jurassic deformed conglomerate, in the Sanandaj–Sirjan Metamorphic Belt, Zagros Mountain of Iran. Estimated finite strain ellipsoids range from general flattening to near plane strain (Flinn parameter K = 0.6–0.9) with strain ratios in the X/Z plane with Rxz = 5.4. Quantitative kinematic analyses were performed on the conglomerates using the rigid clast method. Estimated kinematic vorticity numbers (Wk) varied between 0.43 and 0.63, implying a general shear flow (30% < simple shear < 42% and 58% < pure shear < 70%, i.e., pure shear-dominated non-coaxial flow). Combining strain and vorticity data, we estimated a horizontal shortening of ~ 42–55% measured normal to the walls of the deformation zone. We discuss this pure shear-dominated deformation in terms of convergence between the Afro-Arabian continent and the Central-Iranian microcontinents. © 2019, Geologische Vereinigung e.V. (GV).
英文关键词	Deformed conglomerate; Finite strain; Iran; Kinematic vorticity number; Zagros
语种	英语
scopus关键词	conglomerate; deformation; shear flow; strain analysis; strain measurement; vorticity; Iran; Sanandaj-Sirjan Belt; Zagros
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/147731
作者单位	Faculty of Earth Sciences, Shahid Chamran University of Ahvaz, Ahvaz, Iran; Department of Earth Sciences, College of Sciences, Shiraz University, Shiraz, Iran; Department for Geodynamics and Sedimentology, University of Vienna, Vienna, Austria
推荐引用方式 GB/T 7714	Samani B.,Faghih A.,Grasemann B.. Strain pattern and vorticity analysis of deformed conglomerates in the Heneshk area within the Sanandaj–Sirjan Metamorphic Belt; Zagros Mountains; Iran[J],2020,109(1).
APA	Samani B.,Faghih A.,&Grasemann B..(2020).Strain pattern and vorticity analysis of deformed conglomerates in the Heneshk area within the Sanandaj–Sirjan Metamorphic Belt; Zagros Mountains; Iran.International Journal of Earth Sciences,109(1).
MLA	Samani B.,et al."Strain pattern and vorticity analysis of deformed conglomerates in the Heneshk area within the Sanandaj–Sirjan Metamorphic Belt; Zagros Mountains; Iran".International Journal of Earth Sciences 109.1(2020).