Erosion and deposition on the Pajarito Plateau, New Mexico, and implications for geomorphic responses to late Quaternary climatic changes

Reneau, Steven L.; McDonald, Eric V.; Gardner, Julia; Longmire, Patrick; Kolbe, Tamara; Carney, John S.; Watt, Paula Muir

doi:10.2172/215311

Cited by 13 publications

(12 citation statements)

References 6 publications

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“…Ash-flow tuffs, erupted from the Jemez Mountains, define the plateau; its alternating broad mesas and steep canyons drain eastward to White Rock Canyon of the Rio Grande [44]. The San Miguel Mountains, a sub-range of the Jemez, overlap the Dome fire perimeter.…”

Section: Study Areamentioning

confidence: 99%

Characterizing Spatial Neighborhoods of Refugia Following Large Fires in Northern New Mexico USA

Haire¹,

Miller

2017

Land

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Abstract:The spatial patterns resulting from large fires include refugial habitats that support surviving legacies and promote ecosystem recovery. To better understand the diverse ecological functions of refugia on burn mosaics, we used remotely sensed data to quantify neighborhood patterns of areas relatively unchanged following the 2011 Las Conchas fire. Spatial patterns of refugia measured within 10-ha moving windows varied across a gradient from areas of high density, clustered in space, to sparsely populated neighborhoods that occurred in the background matrix. The scaling of these patterns was related to the underlying structure of topography measured by slope, aspect and potential soil wetness, and spatially varying climate. Using a nonmetric multidimensional scaling analysis of species cover data collected post-Las Conchas, we found that trees and forest associates were present across the refugial gradient, but communities also exhibited a range of species compositions and potential functions. Spatial patterns of refugia quantified for three previous burns (La Mesa 1977, Dome 1996, Cerro Grande 2000 were dynamic between fire events, but most refugia persisted through at least two fires. Efforts to maintain burn heterogeneity and its ecological functions can begin with identifying where refugia are likely to occur, using terrain-based microclimate models, burn severity models and available field data.

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Section: Study Areamentioning

confidence: 99%

Characterizing Spatial Neighborhoods of Refugia Following Large Fires in Northern New Mexico USA

Haire¹,

Miller

2017

Land

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“…Qc includes deposits that range in age from > 50 to 60 ka (pre-Qec) to present. Evidence for the eolian origin of some early Holocene and late Holocene deposits on Pajarito Mesa, east of the map area, is presented in Reneau et al (1995Reneau et al ( , 1996a, and eolian deposits of similar age may be widespread in the study area. On Plate 1, Qc is in many places included in other map units and not broken out separately.…”

Section: H Colluvium (Qc)mentioning

confidence: 85%

“…The basic soil-stratigraphic framework used in the surficial mapping is partially derived from previous investigations that included soil pits and trenches on the western Pajarito Plateau, including sites both inside and outside the map area (e.g., Kolbe et al 1994Kolbe et al , 1995Reneau et al 1995Reneau et al , 1996aReneau et al , 1996bReneau et al , 2002Wong et al 1995;Longmire et al 1996;McDonald et al 1996;Reneau and McDonald 1996;McCalpin 1998McCalpin , 1999Phillips et al 1998;Gardner et al 2001). Large parts of the map area have been disturbed by human activities, partially obscuring original geologic relations.…”

Section: A Geologic Mappingmentioning

confidence: 99%

“…Trench exposures in nearby areas (Kolbe et al 1994;Reneau et al 1995) have shown that deposits of undisturbed pumice can be quite discontinuous and that the pumice is often highly disrupted by burrowing animals and other forms of bioturbation. The pumice beds are also typically overlain by colluvial, alluvial, or eolian deposits (Kolbe et al 1994;Reneau et al 1995Reneau et al , 1996aReneau et al , 1996bWong et al 1995;Reneau and McDonald 1996;Gardner et al 2001). In the map area, the existence of Qec below the surface soil can often be inferred from the presence of abundant pumice in mounds adjacent to animal burrows.…”

Section: El Cajete Pumice (Qec)mentioning

confidence: 99%

“…Texturally, this unit includes coarse sand and gravel that represent bed-load sediment deposits, medium sand to silt that represents overbank sediment deposits, and some colluvium derived from adjacent slopes. Based on work in other canyons on the Pajarito Plateau (e.g., McDonald et al 1996;Reneau and McDonald 1996;Reneau et al 1996a;Reneau 2000), Qt has a probable age range from late Pleistocene to late Holocene. In many areas, Qt was not broken out separately from Qal.…”

Section: F Stream Terraces (Qt)mentioning

confidence: 99%

See 2 more Smart Citations

Geology of the Western Part of Los Alamos National Laboratory (TA-3 to TA-16), Rio Grande Rift, New Mexico

Lewis¹,

Lavine²,

Reneau³

et al. 2002

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Geochemical evolution of the Critical Zone across variable time scales informs concentration‐discharge relationships: Jemez River Basin Critical Zone Observatory

McIntosh

Schaumberg

Perdrial

et al. 2017

Water Resources Research

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This study investigates the influence of water, carbon, and energy fluxes on solute production and transport through the Jemez Critical Zone (CZ) and impacts on C‐Q relationships over variable spatial and temporal scales. Chemical depletion‐enrichment profiles of soils, combined with regolith thickness and groundwater data indicate the importance to stream hydrochemistry of incongruent dissolution of silicate minerals during deep bedrock weathering, which is primarily limited by water fluxes, in this highly fractured, young volcanic terrain. Under high flow conditions (e.g., spring snowmelt), wetting of soil and regolith surfaces and presence of organic acids promote mineral dissolution and provide a constant supply of base cations, Si, and DIC to soil water and groundwater. Mixing of waters from different hydrochemical reservoirs in the near stream environment during “wet” periods leads to the chemostatic behavior of DIC, base cations, and Si in stream flow. Metals transported by organic matter complexation (i.e., Ge, Al) and/or colloids (i.e., Al) during periods of soil saturation and lateral connectivity to the stream display a positive relationship with Q. Variable Si‐Q relationships, under all but the highest flow conditions, can be explained by nonconservative transport and precipitation of clay minerals, which influences long versus short‐term Si weathering fluxes. By combining measurements of the CZ obtained across different spatial and temporal scales, we were able to constrain weathering processes in different hydrological reservoirs that may be flushed to the stream during hydrologic events, thereby informing C‐Q relationships.

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Erosion and deposition on the Pajarito Plateau, New Mexico, and implications for geomorphic responses to late Quaternary climatic changes

Cited by 13 publications

References 6 publications

Characterizing Spatial Neighborhoods of Refugia Following Large Fires in Northern New Mexico USA

Characterizing Spatial Neighborhoods of Refugia Following Large Fires in Northern New Mexico USA

Geology of the Western Part of Los Alamos National Laboratory (TA-3 to TA-16), Rio Grande Rift, New Mexico

Geochemical evolution of the Critical Zone across variable time scales informs concentration‐discharge relationships: Jemez River Basin Critical Zone Observatory

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