Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1177/0309133315582045 |
Toe-cut terraces: A review and proposed criteria to differentiate from traditional fluvial terraces | |
Larson, Phillip H.1; Dorn, Ronald I.2; Faulkner, Douglas J.3; Friend, Donald A.1 | |
通讯作者 | Larson, Phillip H. |
来源期刊 | PROGRESS IN PHYSICAL GEOGRAPHY
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ISSN | 0309-1333 |
EISSN | 1477-0296 |
出版年 | 2015 |
卷号 | 39期号:4页码:417-439 |
英文摘要 | Alluvial fans and fluvial terraces occur in nearly all climatic settings and often coexist within the same drainage basin. These landforms play an important role in understanding the geomorphic, hydrologic, sedimentologic and erosional histories of a basin. The juxtaposition of fans and fluvial terraces, in some instances, can lead to misinterpretation in distinguishing traditional fluvial terraces from the truncated toe of tributary alluvial fans. This becomes particularly troublesome for those attempting to interpret results from published field studies where fan-cut terrace, truncated alluvial fan, toe-cut alluvial fan, alluvial terrace, and incision of the lower end of a fan piedmont all refer to the same genetic landform. We call for use of the term toe-cut terrace to represent this landform. We also present criteria to aid in the identification of toe-cut terraces, defined as an abandoned alluvial surface, formed by the truncation of the distal portion of tributary alluvial fans by streams flowing obliquely or perpendicular to the fan surface. Truncation occurs through lateral erosion (toe-cutting) or through vertical incision by the trunk drainage lowering the base-level of the alluvial fan. This results in incision into the fan surface abandoning the fan’s depositional surface at a higher level above the modern floodplain - a form that often resembles a fluvial terrace. A case study from the Sonoran Desert in central Arizona illustrates a sequence of abandoned alluvial surfaces that resemble fluvial terraces, but use of the proposed criteria reveal the presence of both toe-cut terraces and traditional fluvial terraces formed by the abandonment of the rivers former floodplain. |
英文关键词 | alluvial fan fluvial terrace toe-cut terrace drainage basin evolution desert geomorphology |
类型 | Review |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000359416200001 |
WOS关键词 | LONGITUDINAL-PROFILE DEVELOPMENT ; ROCK-VARNISH MICROSTRATIGRAPHY ; RIO-GRANDE RIFT ; ALLUVIAL FANS ; CLIMATE-CHANGE ; RIVER TERRACES ; MOJAVE DESERT ; WESTERN USA ; SEA-LEVEL ; GEOMORPHIC FEATURES |
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/2XILL650/189952 |
作者单位 | 1.Minnesota State Univ, Dept Geog, Mankato, MN 56001 USA; 2.Arizona State Univ, Tempe, AZ 85287 USA; 3.Univ Wisconsin Eau Claire, Eau Claire, WI USA |
推荐引用方式 GB/T 7714 | Larson, Phillip H.,Dorn, Ronald I.,Faulkner, Douglas J.,et al. Toe-cut terraces: A review and proposed criteria to differentiate from traditional fluvial terraces[J]. Arizona State University,2015,39(4):417-439. |
APA | Larson, Phillip H.,Dorn, Ronald I.,Faulkner, Douglas J.,&Friend, Donald A..(2015).Toe-cut terraces: A review and proposed criteria to differentiate from traditional fluvial terraces.PROGRESS IN PHYSICAL GEOGRAPHY,39(4),417-439. |
MLA | Larson, Phillip H.,et al."Toe-cut terraces: A review and proposed criteria to differentiate from traditional fluvial terraces".PROGRESS IN PHYSICAL GEOGRAPHY 39.4(2015):417-439. |
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