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DOI	10.1007/s00531-020-01905-w
	Structural evolution of continental and marine Permian rock salt of the North German Basin: constraints from microfabrics; geochemistry and U–Pb ages
	Henneberg M.; Linckens J.; Schramm M.; Hammer J.; Gerdes A.; Zulauf G.
发表日期	2020
ISSN	14373254
起始页码	2369
结束页码	2387
卷号	109 期号:7
英文摘要	Analyzing the dynamics of microstructural response on natural deformation in rock salt, we present microfabric, EBSD, geochemical and U–Pb data, obtained from Permian salt formations of the Kiel-Honigsee salt wall in Northern Germany. The samples were recovered from deep drillings, which penetrated through an overturned rock salt sequence of both Rotliegend and Zechstein deposits. The bromide concentration in halite indicates a continental and marine origin for the Rotliegend and Zechstein deposits, respectively. Despite intense deformation, relics of early diagenetic fabrics are still preserved. Deformation of the impure Rotliegend rock salt was accommodated by pressure solution and hydrofracturing as is indicated by the microfabrics and bromide concentration in halite. Fractures in siliciclastic domains were filled with fibrous halite and deformed by subgrain rotation recrystallization (SGR). Fluid-rich Zechstein rock salt, on the other hand, was deformed by formation of subgrains and grain boundary migration (GBM). The distribution of mineral phases and fluids had a significant impact on the fabric evolution and on strain localization. U–Pb dating of carbonate phases of the Rotliegend sequence yielded Permian depositional ages and Jurassic to Cretaceous deformation ages, the latter related to diapiric ascent. The combination of results traces a dynamic evolution of the rock fabric inside the diapir structure driven by locally active deformation processes that can be correlated with early stages of halite deposition and diagenesis and syntectonic fabric reorganization related to diapirism in an extensional setting. © 2020, The Author(s).
英文关键词	Diapirism; Evaporite; Geochemistry; Halite; Microstructures; North German Basin; Rock salt; U–Pb dating
语种	英语
scopus关键词	age determination; diapirism; evaporite; halite; microstructure; Permian; petrofabric; rock salt; sediment chemistry; tectonic evolution; uranium-lead dating; North German Basin
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/147619
作者单位	Bundesanstalt für Geowissenschaften und Rohstoffe (BGR), Hannover, 30655, Germany; Institut für Geowissenschaften, Goethe-Universität Frankfurt am Main, Frankfurt am Main, 60438, Germany; Frankfurt Isotope and Element Research Center (FIERCE), Goethe-Universität Frankfurt am Main, Frankfurt am Main, 60438, Germany
推荐引用方式 GB/T 7714	Henneberg M.,Linckens J.,Schramm M.,等. Structural evolution of continental and marine Permian rock salt of the North German Basin: constraints from microfabrics; geochemistry and U–Pb ages[J],2020,109(7).
APA	Henneberg M.,Linckens J.,Schramm M.,Hammer J.,Gerdes A.,&Zulauf G..(2020).Structural evolution of continental and marine Permian rock salt of the North German Basin: constraints from microfabrics; geochemistry and U–Pb ages.International Journal of Earth Sciences,109(7).
MLA	Henneberg M.,et al."Structural evolution of continental and marine Permian rock salt of the North German Basin: constraints from microfabrics; geochemistry and U–Pb ages".International Journal of Earth Sciences 109.7(2020).