Preliminary Surficial Geology of the Dove Spring Off-Highway Vehicle Open Area, Mojave Desert, California

Miller, David M.; Amoroso, Lee

doi:10.3133/ofr20061265

Cited by 1 publication

(1 citation statement)

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“…Surficial geology was mapped in detail (1:24,000) in key areas (e.g., Bedford, 2003;Dudash, 2006;Miller and Amoroso, 2006) as well as in intermediate scale (1:100,000) across much of the Mojave Desert (e.g., Amoroso and Miller, 2006;Bedford et al, 2006;Schmidt and McMackin, 2006). Standard field methods were used, including description of landforms, soils, and deposits; interpretation of aerial photographs; interpretation of topographic data sets (30-m DEMs and 1-m LiDAR); and remote sensing (Landsat 7 and Digital Orthophotograph Quarter Quadrangles).…”

Section: Methodsmentioning

confidence: 99%

Holocene landscape response to seasonality of storms in the Mojave Desert

Miller

Schmidt

Mahan

et al. 2010

Quaternary International

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Rene, "Holocene landscape response to seasonality of storms in the Mojave Desert" (2010 Periods of alluvial fan aggradation across the Mojave Desert are 14-9 cal ka and 6-3 cal ka. This timing largely correlates to times of increased sea-surface temperatures in the Gulf of California and enhanced warm-season monsoons. This correlation suggests that sustained alluvial fan aggradation may be driven by intense summer-season storms. These data suggest that the close proximity of the Mojave Desert to the Pacific Ocean and the Gulf of California promotes a partitioning of landscape-process responses to climate forcings that vary with seasonality of the dominant storms. Coolseason Pacific frontal storms cause river flow, ephemeral lakes, and fan incision, whereas periods of intense warm-season storms cause hillslope erosion and alluvial fan aggradation. The proposed landscape-process partitioning has important implications for hazard mitigation given that climate change may increase sea-surface temperatures in the Gulf of California, which indirectly could increase future alluvial fan aggradation.

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