干旱区生态环境知识资源中心(Arid): PALEOALTIMETRY OF THE WESTERN ANDES IN NORTHERN CHILE (similar to 18.5-19.5 degrees S)

Arid

DOI	10.2475/05.2021.01
	PALEOALTIMETRY OF THE WESTERN ANDES IN NORTHERN CHILE (similar to 18.5-19.5 degrees S)
	Jimenez-Rodriguez, Sebastian; Dettinger, Matthew; Quade, Jay; Murray, Kendra E.
通讯作者	Jimenez-Rodriguez, S (corresponding author), Univ Arizona, Dept Geosci, Tucson, AZ 85721 USA.
来源期刊	AMERICAN JOURNAL OF SCIENCE
ISSN	0002-9599
EISSN	1945-452X
出版年	2021
卷号	321 期号:5 页码:491-533
英文摘要	Establishing the timing of surface uplift in the Central Andes is essential for evaluating the geodynamic mechanisms responsible for mountain building and their role in the development of dry conditions along the western coasts of Peru and Chile. Here, we present new stable hydrogen isotopic values from stream waters and hydration water in volcanic glass from northern Chile (18.5-19.5 degrees S) that show that the Western Cordillera was already elevated by the early Miocene. The hydrogen isotopic values of reconstructed surface waters obtained from ancient and modern volcanic glass indicate that the Western Cordillera in northern Chile attained modern elevations by at least 22.8 Ma. When combined with paleoaltimetric records from the Altiplano and northwestern Puna, these results demonstrate that surface uplift of the Andean plateau was a time-transgressive process that varied not just from west to east but also from north and south along the strike of the orogen. Our paleoaltimetry reconstruction also suggests that the Western Cordillera has blocked moisture coming from the east since at least the early Miocene, consistent with previously published evidence of arid-semiarid conditions in the Atacama Desert. However, hyperaridity on the western Andean slope developed later and appears to correspond with the timing of uplift in the Eastern Cordillera and Altiplano. Our results suggest that the growth of the Central Andean rain shadow relied not only on the elevation of the Western Cordillera but also on the widening of the plateau.
英文关键词	Stable isotopes paleoaltimetry Western Cordillera Central Andes Atacama Desert
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000700192700001
WOS关键词	HYDROGEN ISOTOPE FRACTIONATION ; CENOZOIC CLIMATE-CHANGE ; ATACAMA DESERT ; SURFACE UPLIFT ; TECTONIC EVOLUTION ; VOLCANIC GLASS ; ALTIPLANO PLATEAU ; STABLE-ISOTOPES ; NAZCA FARALLON ; EXPOSURE AGES
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
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/2XILL650/362439
作者单位	[Jimenez-Rodriguez, Sebastian; Dettinger, Matthew; Quade, Jay; Murray, Kendra E.] Univ Arizona, Dept Geosci, Tucson, AZ 85721 USA; [Dettinger, Matthew] Res Sq Co, Durham, NC 27701 USA; [Murray, Kendra E.] Idaho State Univ, Dept Geosci, Pocatello, ID 83209 USA
推荐引用方式 GB/T 7714	Jimenez-Rodriguez, Sebastian,Dettinger, Matthew,Quade, Jay,et al. PALEOALTIMETRY OF THE WESTERN ANDES IN NORTHERN CHILE (similar to 18.5-19.5 degrees S)[J]. University of Arizona,2021,321(5):491-533.
APA	Jimenez-Rodriguez, Sebastian,Dettinger, Matthew,Quade, Jay,&Murray, Kendra E..(2021).PALEOALTIMETRY OF THE WESTERN ANDES IN NORTHERN CHILE (similar to 18.5-19.5 degrees S).AMERICAN JOURNAL OF SCIENCE,321(5),491-533.
MLA	Jimenez-Rodriguez, Sebastian,et al."PALEOALTIMETRY OF THE WESTERN ANDES IN NORTHERN CHILE (similar to 18.5-19.5 degrees S)".AMERICAN JOURNAL OF SCIENCE 321.5(2021):491-533.