干旱区生态环境知识资源中心(Arid): Implications of variable late Cenozoic surface uplift across the Peruvian central Andes

Arid

DOI	10.1038/s41598-019-41257-3
	Implications of variable late Cenozoic surface uplift across the Peruvian central Andes
	Sundell, Kurt E.1,2; Saylor, Joel E.1; Lapen, Thomas J.1; Horton, Brian K.3,4
通讯作者	Sundell, Kurt E.
来源期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
出版年	2019
卷号	9
英文摘要	Changes in Earth's surface elevation can be linked to the geodynamic processes that drive surface uplift, which in turn modulate regional climate patterns. We document hydrogen isotopic compositions of hydrated volcanic glasses and modern stream waters to determine late Cenozoic surface uplift across the Peruvian central Andes. Modern water isotopic compositions reproduce mean catchment elevations to a precision better than +/- 500 m (1 sigma). Glass isotopic data show a spatiotemporally variable transition from isotopically heavy to isotopically light compositions. The latter are consistent with modern water on the plateau. When interpreted in the context of published paleoelevation estimates and independent geological information, the isotopic data indicate that elevation rapidly increased by 2-2.5 km from 20-17 Ma in the central Western Cordillera, and from 15-10 Ma in the southern Western Cordillera and Altiplano; these patterns are consistent with foundering of mantle lithosphere via Rayleigh-Taylor instability. The Eastern Cordillera was slowly elevated 1.5-2 km between 25 and 10 Ma, a rate consistent with crustal shortening as the dominant driver of surface uplift. The Ayacucho region attained modern elevation by similar to 22 Ma. The timing of orographic development across southern Peru is consistent with the early Miocene onset and middle Miocene intensification of hyperarid conditions along the central Andean Pacific coast.
类型	Article
语种	英语
国家	USA
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000461563200037
WOS关键词	NORTHERN ALTIPLANO PLATEAU ; CONVECTIVE RAINFALL ; ATACAMA DESERT ; EVOLUTION ; BASIN ; ISOTOPES ; CLIMATE ; GLASS ; PRECIPITATION ; PALEOCLIMATE
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
来源机构	University of Arizona
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218765
作者单位	1.Univ Houston, Dept Earth & Atmospher Sci, Houston, TX 77004 USA; 2.Univ Arizona, Dept Geosci, Tucson, AZ 85721 USA; 3.Univ Texas Austin, Dept Geol Sci, Austin, TX 78712 USA; 4.Univ Texas Austin, Inst Geophys, 8701 Mopac Blvd, Austin, TX 78712 USA
推荐引用方式 GB/T 7714	Sundell, Kurt E.,Saylor, Joel E.,Lapen, Thomas J.,et al. Implications of variable late Cenozoic surface uplift across the Peruvian central Andes[J]. University of Arizona,2019,9.
APA	Sundell, Kurt E.,Saylor, Joel E.,Lapen, Thomas J.,&Horton, Brian K..(2019).Implications of variable late Cenozoic surface uplift across the Peruvian central Andes.SCIENTIFIC REPORTS,9.
MLA	Sundell, Kurt E.,et al."Implications of variable late Cenozoic surface uplift across the Peruvian central Andes".SCIENTIFIC REPORTS 9(2019).