干旱区生态环境知识资源中心(Arid): Geo-archaeological records of large Holocene tsunamis along the hyperarid coastal Atacama Desert in the major northern Chile seismic gap

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DOI	10.1016/j.quascirev.2019.07.038
	Geo-archaeological records of large Holocene tsunamis along the hyperarid coastal Atacama Desert in the major northern Chile seismic gap
	Leon, Tomas 1; Vargas, Gabriel 1; Salazar, Diego 2; Goff, James 3; Guendon, Jean Louis 4; Andrade, Pedro 5; Alvarez, Gabriel 6
通讯作者	Leon, Tomas ; Vargas, Gabriel
来源期刊	QUATERNARY SCIENCE REVIEWS
ISSN	0277-3791
出版年	2019
卷号	220 页码:335-358
英文摘要	The coastal Atacama Desert is exposed to strong earthquakes and giant tsunamis associated with the subduction of the Nazca plate beneath the South American plate. Nevertheless, historical and geological records of tsunamis and paleotsunamis in this region are scarce. Taltal (25.4 degrees S) is located at the southern edge of the hyperarid Atacama Desert within a major historical similar to 1000 km-long megathrust seismic gap in northern Chile where the most recent large tsunamigenic earthquakes occurred in 1877 CE and 1922 CE, rupturing its northern and southern segments, respectively. By multiproxy geological and archaeological analyses from pits and trenches, we report distinctive strata of reworked archaeological material as well as sedimentary layers that we interpret as being produced by tsunami run-up and/or backwash deposition. We identified two large Holocene paleotsunamis dated close to similar to 4000 cal yrs BP and younger than 863 +/- 199 CE (similar to 1087 cal years BP). By comparing the run-ups of the last historical tsunamis with our minimum run-up estimates from the geo-archaeological record, we conclude that the impact of these Holocene paleotsunamis was larger than any known historical event, suggesting the need to re-evaluate local, regional and Pacific basin-scale tsunami hazard assessments. (C) 2019 Elsevier Ltd. All rights reserved.
英文关键词	Holocene South America Geomorphology Coastal Geo-archaeology Paleotsunamis Hyperarid Atacama Desert Taltal Northern Chile seismic gap
类型	Article
语种	英语
国家	Chile ; Australia ; France
收录类别	SCI-E
WOS记录号	WOS:000487565700020
WOS关键词	LAND-LEVEL CHANGES ; SEA-LEVEL ; SUBDUCTION ZONE ; SOUTH-AMERICA ; MIDDLE HOLOCENE ; SANDY TSUNAMI ; RIVER ESTUARY ; EARTHQUAKES ; DEPOSITS ; ANTOFAGASTA
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218284
作者单位	1.Univ Chile, Fac Ciencias Fis & Matemat, Dept Geol, Plaza Ercilla 803, Santiago, Chile; 2.Univ Chile, Dept Antropol, Ignacio Carrera Pinto 1045,Piso 2, Santiago, Chile; 3.Univ New South Wales, Sch Biol Earth & Environm Sci, Pangea Res Ctr, Sydney, NSW 2052, Australia; 4.Aix Marseille Univ, CNRS, UMR 7269, MCC,LAMPEA, F-13094 Aix En Provence, France; 5.Univ Concepcion, Fac Ciencias Sociales, Carrera Antropol, Victor Lamas 1290, Concepcion, Chile; 6.Univ Antofagasta, Fac Ingn, Dept Ingn Geomensura & Geomat, Ave Univ Antofagasta 02800, Antofagasta, Chile
推荐引用方式 GB/T 7714	Leon, Tomas,Vargas, Gabriel,Salazar, Diego,et al. Geo-archaeological records of large Holocene tsunamis along the hyperarid coastal Atacama Desert in the major northern Chile seismic gap[J],2019,220:335-358.
APA	Leon, Tomas.,Vargas, Gabriel.,Salazar, Diego.,Goff, James.,Guendon, Jean Louis.,...&Alvarez, Gabriel.(2019).Geo-archaeological records of large Holocene tsunamis along the hyperarid coastal Atacama Desert in the major northern Chile seismic gap.QUATERNARY SCIENCE REVIEWS,220,335-358.
MLA	Leon, Tomas,et al."Geo-archaeological records of large Holocene tsunamis along the hyperarid coastal Atacama Desert in the major northern Chile seismic gap".QUATERNARY SCIENCE REVIEWS 220(2019):335-358.