干旱区生态环境知识资源中心(Arid): Drainage integration of the Salt and Verde rivers in a Basin and Range extensional landscape, central Arizona, USA

Arid

DOI	10.1016/j.geomorph.2020.107512
	Drainage integration of the Salt and Verde rivers in a Basin and Range extensional landscape, central Arizona, USA
	Skotnicki, Steve J.; Seong, Yeong B.; Dorn, Ronald I.; Larson, Phillip H.; DePonty, Jersy; Jeong, Ara
通讯作者	Dorn, RI (corresponding author), Arizona State Univ, Sch Geog Sci & Urban Planning, Tempe, AZ 85287 USA.
来源期刊	GEOMORPHOLOGY
ISSN	0169-555X
EISSN	1872-695X
出版年	2021
卷号	374
英文摘要	The Salt River and Verde River watersheds provide downstream metropolitan Phoenix, Arizona, USA with much of its water supply, and this paper explains how these rivers integrated in an extensional tectonic setting. Near the end of the Pliocene, segments of the proto-Salt and proto-Verde watersheds of central Arizona consisted of local drainage networks supplying water and sediment into internally drained basins, including depressions occupied by late Pliocene natural lakes occupying the Verde Valley and Tonto basins. A key location, the lower Verde River valley (LVRV), is where the modern-day drainages of the Salt and Verde now meet downstream of these Pliocene lakes. At the time of the Nomlaki tuff deposition -3.3 Ma, a condition of sediment overfill existed in the LVRV, although there was no exoreic drainage and a playa was still maintained. A fanglomerate unit, named here the Rolls formation, spilled over a bedrock sill and an alluvial-fan ramp transported sediment into the Higley Basin that underlies the eastern part of metropolitan Phoenix. Lithologies of preserved remnants of this Pliocene alluvial-fan system match well cuttings of buried sediment in the Higley Basin with a cosmogenic burial isochron age of 3.90 +/- 0.70 Ma. Based on cosmogenic burial isochron ages, ancestral Salt River gravels started depositing on top of this fan ramp between 2.8 and 2.2 Ma. Deposition of Salt and Verde river gravels in the Higley Basin continued for -2 million years and eventually led to an aggradational piracy event that overtopped a bedrock ridge immediately east of Phoenix's Sky Harbor Airport. A cosmogenic burial age of 460 +/- 23 ka is a rough maximum age for this river avulsion that relocated the Salt River into the Luke Basin that underlies western metropolitan Phoenix. Available chronometric data are not precise enough to determine whether the Salt River or Gila River integrated first. All of the exoreic rivers of western North America's Basin and Range Province - the lower Colorado, Gila, Rio Grande, Salt, and Verde rivers - employed lake overflow to integrate across half-graben, graben, rift and supradetachment tectonic settings. (C) 2020 Elsevier B.V. All rights reserved.
英文关键词	Aggradation Lake overflow Piracy Overfill Transverse stream
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000604745100003
WOS关键词	TRANSVERSE DRAINAGE ; COLORADO RIVER ; SOUTH MOUNTAINS ; SONORAN DESERT ; MOJAVE-DESERT ; AFTON CANYON ; SHEAR ZONE ; HALF-LIFE ; EVOLUTION ; BE-10
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
来源机构	Arizona State University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/347928
作者单位	[Skotnicki, Steve J.] 281 W Amoroso Or, Gilbert, AZ 85233 USA; [Seong, Yeong B.] Korea Univ, Dept Geog Educ, Seoul 136701, South Korea; [Dorn, Ronald I.] Arizona State Univ, Sch Geog Sci & Urban Planning, Tempe, AZ 85287 USA; [Larson, Phillip H.] Minnesota State Univ, Dept Geog, Earth Sci Programs, EARTH Syst Lab, Mankato, MN 56001 USA; [DePonty, Jersy] Groundwater Resources & Geolkydrol, Salt River Project, 1521 N Project Dr, Tempe, AZ 35281 USA; [Jeong, Ara] Korea Univ, Dept Geog Educ, Seoul 136701, South Korea
推荐引用方式 GB/T 7714	Skotnicki, Steve J.,Seong, Yeong B.,Dorn, Ronald I.,et al. Drainage integration of the Salt and Verde rivers in a Basin and Range extensional landscape, central Arizona, USA[J]. Arizona State University,2021,374.
APA	Skotnicki, Steve J.,Seong, Yeong B.,Dorn, Ronald I.,Larson, Phillip H.,DePonty, Jersy,&Jeong, Ara.(2021).Drainage integration of the Salt and Verde rivers in a Basin and Range extensional landscape, central Arizona, USA.GEOMORPHOLOGY,374.
MLA	Skotnicki, Steve J.,et al."Drainage integration of the Salt and Verde rivers in a Basin and Range extensional landscape, central Arizona, USA".GEOMORPHOLOGY 374(2021).