气候变化领域集成服务门户(CCPortal): Sand spikes pinpoint powerful palaeoseismicity

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DOI	10.1038/s41467-021-27061-6
	Sand spikes pinpoint powerful palaeoseismicity
	Buchner E.; Sach V.J.; Schmieder M.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	Sand spikes, pin-shaped, carbonate-cemented sandstone bodies of variable size widely interpreted as sedimentary concretions, have been enigmatic for nearly two centuries. We here present a high-energy mechanism for their formation. Two classic sand spike occurrences are found in the North Alpine Foreland Basin of Central Europe and at Mount Signal in southern California, USA. A distinct seismite horizon in Mid-Miocene Molasse sediments of southern Germany, genetically linked with the Ries impact event, exhibits dewatering structures and contains numerous sand spikes with tails systematically orientated away from the Ries crater. Sand spikes at Mount Signal, strikingly similar in shape to those found in Germany, have tails that point away from the nearby San Andreas Fault. Based on their structural and stratigraphic context, we interpret sand spikes as a new type of seismite and a promising tool to identify strong impact-induced or tectonic palaeo-earthquakes and their source regions in the geologic record. © 2021, The Author(s).
语种	英语
scopus关键词	detection method; paleoseismicity; sandstone; seismite; article; California; dewatering; earthquake; Germany; Miocene; sediment; spike; Alps; California; Germany; Prealps; San Andreas; United States; Elliptio dilatata
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/251304
作者单位	HNU - Neu-Ulm University of Applied Sciences, Wileystrasse 1, Neu-Ulm, D-89231, Germany; Meteorkrater-Museum Steinheim, Steinheim am Albuch, D-89555, Germany; Fokus Natur, Am Heselsberg 29, Ochsenhausen, D-88416, Germany
推荐引用方式 GB/T 7714	Buchner E.,Sach V.J.,Schmieder M.. Sand spikes pinpoint powerful palaeoseismicity[J],2021,12(1).
APA	Buchner E.,Sach V.J.,&Schmieder M..(2021).Sand spikes pinpoint powerful palaeoseismicity.Nature Communications,12(1).
MLA	Buchner E.,et al."Sand spikes pinpoint powerful palaeoseismicity".Nature Communications 12.1(2021).