How To Use Alluvial fan In A Sentence
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Volcanic cones, lava flows, alluvial fans where canyons blend to valley floors, and playas where there were once Pleistocene lakes, add to a sense of active, sometimes violent geological processes at work.
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Geologically, this area is an alluvial fan of a giant rock slide of granitic gneisses.
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Alluvial fans and related phenomena are depositional landforms which form a continuum.
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The Copper River alluvial fan is an outwash plain, that is, formed from sediments deposited by glacial meltwater.
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Tectonic uplands bordering active faults are usually drained by steep catchments feeding alluvial fans, adjacent examples of which coalesce to define continuous bajadas (base-of-slope deposits).
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The impact of different pioneer crops on soil physical and chemical properties was studied on abandoned farmland of alluvial fan-fringe area in the Manas River valley.
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It generally shows a fining-upward trend with four facies associations: alluvial fan fringe, subaqueous delta lobe, delta front, and shallow lake.
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They are respectively turbidity fan, brackish lake, shore and shallow lake-beach, delta, alluvial fan and river-alluviation depositional systems.
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Sediment-laden streams carve deep, steep-sided valleys which, where they debouch into adjacent lowlands, produce alluvial fans.
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Initial subsidence was marked by accumulation of relatively immature alluvial fan and associated deposits in localized piedmont depocentres.
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Plants in subdued shades of green and bronze grew on the broad alluvial fans that swept out from the base of the mountains.
BEAUTIFUL DREAMER
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Must we really clamber up every alluvial fan, map every desert canyon, and slap a name on every dry lake and rocky outcropping?
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The distributary channels and alluvial fans at the mouths of the Flinders, Mitchell, Gilbert, Leichardt, McArthur, and Roper Rivers have extended the seaward edge of the plains.
Carpentaria tropical savanna
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Underwater abyssal fans can be compared to terrestrial landforms known as alluvial fans.
Physiography of the Earth's terrestrial surface
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In this arid climate evaporites form; alluvial fans lie at the base of footwall scarps and carbonate reefs grow.
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They grade both northward and southward into coalesced alluvial fans forming the bajada that flanks the margins of the mountains.
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They are a series of giant alluvial fans made up of coarse greywacke-derived gravel, up to 500 meters (m) deep in places, and overlaid with loess.
Cantebury-Otago tussock grasslands
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I don't even want to think about what the soils conditions are at the Duwamish River (aka Green River, aka White River) where outwash from the Green River Valley, and hence Mount Rainier's ancient mudflows, has deposited itself in an ancient alluvial fan in Elliot Bay -- constrained by the West Seattle highlands on the west and the ridge that separates the Sound from Lake Washington.
Sound Politics: "The heavyweight fight for the waterfront"
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The unforested Mountain Valleys ecoregion contains terraces, flood plains, alluvial fans, and hills.
Ecoregions of Utah (EPA)
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The Sagebrush Steppe Valleys ecoregion consists of gently sloping, unforested terraces, basin rims, valley bottoms, and alluvial fans that are not as arid as Ecoregions 13a, 13b, 13c and 80a.
Ecoregions of Utah (EPA)
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They are respectively turbidity fan, brackish lake, shore and shallow lake-beach, delta, alluvial fan and river-alluviation depositional systems.
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Up to 2000 m of alluvial fan and fan delta deposits of early Cretaceous age are preserved in the Coastal Cordillera.