气候变化领域集成服务门户(CCPortal): Southward expanding plate coupling due to variation in sediment subduction as a cause of Andean growth

CCPortal

DOI	10.1038/s41467-021-27518-8
	Southward expanding plate coupling due to variation in sediment subduction as a cause of Andean growth
	Hu J.; Liu L.; Gurnis M.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	Growth of the Andes has been attributed to Cenozoic subduction. Although climatic and tectonic processes have been proposed to be first-order mechanisms, their interaction and respective contributions remain largely unclear. Here, we apply three-dimensional, fully-dynamic subduction models to investigate the effect of trench-axial sediment transport and subduction on Andean growth, a mechanism that involves both climatic and tectonic processes. We find that the thickness of trench-fill sediments, a proxy of plate coupling (with less sediments causing stronger coupling), exerts an important influence on the pattern of crustal shortening along the Andes. The southward migrating Juan Fernandez Ridge acts as a barrier to the northward flowing trench sediments, thus expanding the zone of plate coupling southward through time. Consequently, the predicted history of Andean shortening is consistent with observations. Southward expanding crustal shortening matches the kinematic history of inferred compression. These results demonstrate the importance of climate-tectonic interaction on mountain building. © 2021, The Author(s).
语种	英语
scopus关键词	Andean orogeny; Cenozoic; coupling; crustal shortening; sediment transport; subduction; article; climate; compression; sediment transport; thickness; Andes; Juan Fernandez Ridge; Pacific Ocean
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/251284
作者单位	Department of Earth and Space Sciences, Southern University of Science and Technology, Shenzhen, 518055, China; Seismological Laboratory, California Institute of Technology, Pasadena, CA 91125, United States; Department of Geology, University of Illinois at Urbana-Champaign, Champaign, IL 61820, United States
推荐引用方式 GB/T 7714	Hu J.,Liu L.,Gurnis M.. Southward expanding plate coupling due to variation in sediment subduction as a cause of Andean growth[J],2021,12(1).
APA	Hu J.,Liu L.,&Gurnis M..(2021).Southward expanding plate coupling due to variation in sediment subduction as a cause of Andean growth.Nature Communications,12(1).
MLA	Hu J.,et al."Southward expanding plate coupling due to variation in sediment subduction as a cause of Andean growth".Nature Communications 12.1(2021).