Distinguishing allogenic from autogenic causes of bed elevation change in late Quaternary alluvial stratigraphic records

Daniels, Jack

doi:10.1016/j.geomorph.2008.05.022

Cited by 29 publications

(20 citation statements)

References 117 publications

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“…Similar timing of incision over a broad geographic area supports an allogenic (climatic) control for arroyo cutting (Karlstrom and Karlstrom, 1987;Karlstrom, 2005;Daniels, 2008). However, nonsynchroneity of cutting episodes for some basins in the Holocene indicates that factors other than climatic change may contribute to the timing of arroyo incision (Patton and Schumm, 1981;Patton and Boison, 1986;Karlstrom and Karlstrom, 1987;Elliott et al, 1999;Force, 2004).…”

Section: Arroyo Cyclementioning

confidence: 92%

Erosion, storage, and transport of sediment in two subbasins of the Rio Puerco, New Mexico

Gellis¹,

Pavich²,

Ellwein³

et al. 2011

Geological Society of America Bulletin

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Arroyos in the American Southwest proceed through cut-and-fi ll cycles that operate at centennial to millennial time scales. The geomorphic community has put much effort into understanding the causes of arroyo cutting in the late Quaternary and in the modern rec ord (late 1800s), while little effort has gone into understanding how arroyos fi ll and the sources of this fi ll. Here, we successfully develop a geographic information system (GIS)-modeled sediment budget that is based on detailed fi eld measurements of hillslope and channel erosion and deposition. Field measurements were made in two arroyo basins draining different lithologies and undergoing different land disturbance (Volcano Hill Wash, 9.30 km 2 ; Arroyo Chavez, 2.11 km 2 ) over a 3 yr period.Both basins have incised channels that formed in response to the late nineteenth-century incision of the Rio Puerco. Large volumes of sediment were generated during arroyo incision, equal to more than 100 yr of the current annual total sediment load (bed load + suspended load) in each basin. Downstream reaches in both arroyos are presently aggrading, and the main source of the sediment is from channel erosion in upstream reaches and fi rst-and second-order tributaries. The sediment budget shows that channel erosion is the largest source of sediment in the current stage of the arroyo cycle: 98% and 80% of the sediment exported out of Volcano Hill Wash and Arroyo Chavez, respectively. The geomorphic surface most affected by arroyo incision and one of the most important sediment sources is the valley alluvium, where channel erosion, gullying, soil piping, and grazing all occur. Erosion rates calculated for the entire Volcano Hill Wash (-0.26 mm/yr) and Arroyo Chavez (-0.53 mm/yr) basins are higher than the modeled upland erosion rates in each basin, refl ecting the large contributions from channel erosion. Erosion rates in each basin are affected by a combination of land disturbance (grazing) and lithology-erodible sandstones and shales in Arroyo Chavez compared with basalt for Volcano Hill Wash. Despite these differences, hillslope sediment yields are similar to long-term denudation rates. As the arroyo fi lls over time from mouth to headwaters, hillslope sediment becomes a more signifi cant sediment source.

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Section: Arroyo Cyclementioning

confidence: 92%

Erosion, storage, and transport of sediment in two subbasins of the Rio Puerco, New Mexico

Gellis¹,

Pavich²,

Ellwein³

et al. 2011

Geological Society of America Bulletin

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“…Riverbed elevation is a fundamental boundary condition for landscape evolution (Tucker and Slingerland, 1997), alluvial stratigraphy (Daniels, 2008), fl ood risk, and aquatic habitat (ASCE Task Committee on Sediment Transport and Aquatic Habitats, Sedimentation Committee, 1992). Over societally relevant time scales, anthropogenic activity (Syvitski et al, 2005) and climate (Inman and Jenkins, 1999) govern changes in sediment production and fl ux through fl uvial systems, and by extension, they affect alluvial riverbeds (Daniels, 2008;Simon, 1989;Williams and Wolman, 1984).…”

Section: Introductionmentioning

confidence: 99%

“…Over societally relevant time scales, anthropogenic activity (Syvitski et al, 2005) and climate (Inman and Jenkins, 1999) govern changes in sediment production and fl ux through fl uvial systems, and by extension, they affect alluvial riverbeds (Daniels, 2008;Simon, 1989;Williams and Wolman, 1984). But in contrast to substantial work documenting anthropogenic impacts in alluvial rivers (Gregory, 2006), we have no corresponding understanding of climatic riverbed signatures, due to a lack of systematic observations spanning gradients of drainage area and climate (Kochel, 1988).…”

Section: Introductionmentioning

confidence: 99%

Imprint of climate and climate change in alluvial riverbeds: Continental United States, 1950-2011

Slater

Singer

2013

Geology

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Alluvial riverbed elevation responds to the balance between sediment supply and transport capacity, which is largely dependent on climate and its translation into fl uvial discharge. We examine these relations using U.S. Geological Survey streamfl ow and channel measurements in conjunction with basin characteristics for 915 reference ("least disturbed") measurement stations across the conterminous United States for the period A.D. 1950-2011. We fi nd that (1) 68% of stations have bed elevation change (BEC) trends (p < 0.05) with median values of +0.5 cm/yr for aggradation and -0.6 cm/yr for degradation, with no obvious relation to drainage basin structure, physiography, or lithology; (2) BEC correlates with drainage basin area;(3) high-fl ow variability (Q 90 /Q 50 , where Q is discharge and 90 and 50 are annual fl ow percentiles) translates directly into the magnitude, though not the direction, of BEC, after accounting for the scale dependence; (4) Q 90 /Q 50 declines systematically from dry to wet climates, producing disproportionately high rates of BEC in drier regions; and (5) marked increases in precipitation and streamfl ow occurred disproportionately at dry sites, while streamfl ow declined disproportionately at wet sites. Climatic shifts in streamfl ow have the potential to increase/decrease sediment fl ux and thus affect riverbed elevation by altering fl ood frequency. These unforeseen responses of bed elevation to climate and climate change have important implications for sediment budgets, longitudinal profi les, ecology, and river management.*Both authors contributed equally to this work.

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“…A decline in archaeological radiocarbon dates relative to geological dates between 0 and 2000 cal yr BP in the Santa Cruz sample is at odds with regional demographic reconstructions that predict large populations around 1000 cal yr BP (Dean et al, 1994), but corresponds with a period when widespread channel entrenchment appears to have brought about significant changes in Hohokam floodplain farming practices and settlement (Waters, 1991;Waters and Ravesloot, 2000), and when ceramic typologies are favored for age control. The positive correlation observed between geological and archaeological radiocarbon dates during the Late Archaic/Early Agricultural period in the Santa Cruz data and the Clovis period in the San Pedro data can be explained by a combination of redundant archaeological and geological sampling and the occurrence of archaeological deposits near stratigraphic boundaries, conditions that are satisfied in both cases (Haynes, 2007b;Waters, 1988;Mabry, 2008).…”

Section: Volcanic-based Model and Relative Abundancementioning

confidence: 88%

“…Internal and external processes both cause changes in streams that result in aggradation, stability, or incision (Daniels, 2008). Because internal causes of arroyo activity should be time-transgressive (Schumm and Parker, 1973), the strongest evidence for climatic forcing is widespread synchroneity of multiple cuttingand-filling cycles in the absence of seismic activity (Bull, 1997).…”

Section: Other Sources Of Biasmentioning

confidence: 99%

Temporal frequency distributions of alluvium in the American Southwest: taphonomic, paleohydraulic, and demographic implications

Ballenger

Mabry²

2011

Journal of Archaeological Science

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Distinguishing allogenic from autogenic causes of bed elevation change in late Quaternary alluvial stratigraphic records

Cited by 29 publications

References 117 publications

Erosion, storage, and transport of sediment in two subbasins of the Rio Puerco, New Mexico

Erosion, storage, and transport of sediment in two subbasins of the Rio Puerco, New Mexico

Imprint of climate and climate change in alluvial riverbeds: Continental United States, 1950-2011

Temporal frequency distributions of alluvium in the American Southwest: taphonomic, paleohydraulic, and demographic implications

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