气候变化领域集成服务门户(CCPortal): Impact of Late Cretaceous to Neogene plate tectonics and Quaternary ice loads on supra-salt deposits at Eastern Glückstadt Graben; North German Basin

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DOI	10.1007/s00531-020-01850-8
	Impact of Late Cretaceous to Neogene plate tectonics and Quaternary ice loads on supra-salt deposits at Eastern Glückstadt Graben; North German Basin
	Huster H.; Hübscher C.; Seidel E.
发表日期	2020
ISSN	14373254
起始页码	1029
结束页码	1050
卷号	109 期号:3
英文摘要	In this study, we investigate the impact of Late Cretaceous to Neogene plate tectonics and Pleistocene ice load on the post-Jurassic strata above the Waabs salt wall within the Eastern Glückstadt Graben by integrating reflection seismic, parametric sub-bottom profiler and well data. Previous studies showed that a collapse graben developed above the salt during several tectonic pulses. However, due to the lack of age constrains, the relationship between local salt tectonics and variations of the regional stress field caused by plate tectonics was just little constrained. Here, we introduce an inter-Cenozoic stratigraphy enabling us to infer and date three major salt tectonic phases. During the Late Cretaceous to Eocene, Africa–Iberia–Europe convergence and subsequent Pyrenean orogeny strata above the salt wall were pushed upwards and faulted. Thickness variations of the Upper Cretaceous and Eocene strata imply at least two pulses for this upward push. The second phase includes the major graben collapse in the Neogene, when the stress regime changed from a compressional to an extensional regime. The third phase is a period of locally differing tectonic reactivation likely caused by ice sheet loading and unloading during the Quaternary. Based on time-isochore and time-structure maps, we elucidate how this last glacial phase of salt tectonic movement likely formed the present day Mittelgrund shoal within the Eckernförde Bay. The spatial correlation between shallow faults and freshwater seepage implies further a causal relationship between fluid migration and faulting. © 2020, Geologische Vereinigung e.V. (GV).
英文关键词	Cenozoic stratigraphy; Crestal collapse graben; Glückstadt Graben; Ice load; Recent tectonics; Salt tectonics
语种	英语
scopus关键词	Cretaceous; graben; ice cover; Neogene; plate convergence; plate tectonics; profiler; Quaternary; salt tectonics; seismic reflection; stratigraphy; well logging; Germany; Gluckstadt; North German Basin; Schleswig-Holstein
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/147688
作者单位	Institute of Geophysics, Center for Earth System Research and Sustainability, University of Hamburg, Bundesstrasse 55, Hamburg, 20146, Germany
推荐引用方式 GB/T 7714	Huster H.,Hübscher C.,Seidel E.. Impact of Late Cretaceous to Neogene plate tectonics and Quaternary ice loads on supra-salt deposits at Eastern Glückstadt Graben; North German Basin[J],2020,109(3).
APA	Huster H.,Hübscher C.,&Seidel E..(2020).Impact of Late Cretaceous to Neogene plate tectonics and Quaternary ice loads on supra-salt deposits at Eastern Glückstadt Graben; North German Basin.International Journal of Earth Sciences,109(3).
MLA	Huster H.,et al."Impact of Late Cretaceous to Neogene plate tectonics and Quaternary ice loads on supra-salt deposits at Eastern Glückstadt Graben; North German Basin".International Journal of Earth Sciences 109.3(2020).