Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1080/02723646.2014.931089 |
Pediment response to drainage basin evolution in south-central Arizona | |
Larson, Phillip H.1; Dorn, Ronald I.2; Palmer, R. Evan2; Bowles, Zack2; Harrison, Emma2; Kelley, Scott2; Schmeeckle, Mark W.2; Douglass, John3 | |
通讯作者 | Larson, Phillip H. |
来源期刊 | PHYSICAL GEOGRAPHY
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ISSN | 0272-3646 |
EISSN | 1930-0557 |
出版年 | 2014 |
卷号 | 35期号:5页码:369-389 |
英文摘要 | The Sonoran Desert portion of the Basin and Range physiographic province contains a number of streams that now flow across once-closed basins. We explore here the research questions of if and how granitic rock pediments respond to the transition from rimming endorheic basins to bordering through-flowing streams. Granitic rock pediments of the northern Usery and eastern McDowell Mountains once graded to the closed Miocene-Pliocene Pemberton basin that occupied the present-day location of the confluence of the Salt and Verde Rivers. The process of lake overflow, which integrated these rivers, first aggraded fill terraces that, in turn, caused aggradation of a mantle of transported grus on bedrock pediments. Subsequent episodic incision of the Salt and Verde rivers lowered the base level; this led to the development of erosional features such as rolling topography of a degrading pediment mantle; exposure of the former piedmont angle and its associated zones of enhanced bedrock decay and regolith carbonate; and exposure of spheroidally weathered bedrock and emerging tors, some of which experienced 20th century erosion. The granitic pediments of the former Pemberton Basin, which now transport grus to the Salt and Verde rivers, have actively adjusted to aggradational and degradational events associated with drainage integration and do not appear to be inherited from an ancient wet climatic interval. |
英文关键词 | drainage basin evolution pediment Basin and Range fluvial terrace carbonate landscape evolution granitic landscapes Sonoran Desert |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000341138200001 |
WOS关键词 | ROCK-VARNISH MICROSTRATIGRAPHY ; PARTICLE SIZE RELATIONS ; LOWER COLORADO RIVER ; MOJAVE DESERT ; WESTERN USA ; GEOMORPHIC FEATURES ; BOUSE FORMATION ; LAKE SPILLOVER ; DEBRIS SLOPES ; UNITED-STATES |
WOS类目 | Environmental Sciences ; Geography, Physical ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Physical Geography ; Geology ; Meteorology & Atmospheric Sciences |
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/2XILL650/184192 |
作者单位 | 1.Minnesota State Univ, Dept Geog, Mankato, MN 56001 USA; 2.Arizona State Univ, Sch Geog Sci & Urban Planning, Tempe, AZ USA; 3.Paradise Valley Community Coll, Dept Geog, Phoenix, AZ USA |
推荐引用方式 GB/T 7714 | Larson, Phillip H.,Dorn, Ronald I.,Palmer, R. Evan,et al. Pediment response to drainage basin evolution in south-central Arizona[J]. Arizona State University,2014,35(5):369-389. |
APA | Larson, Phillip H..,Dorn, Ronald I..,Palmer, R. Evan.,Bowles, Zack.,Harrison, Emma.,...&Douglass, John.(2014).Pediment response to drainage basin evolution in south-central Arizona.PHYSICAL GEOGRAPHY,35(5),369-389. |
MLA | Larson, Phillip H.,et al."Pediment response to drainage basin evolution in south-central Arizona".PHYSICAL GEOGRAPHY 35.5(2014):369-389. |
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