What is a debris flow? | U.S. Geological Survey - USGS.gov
WEBDebris flows are fast-moving landslides that are particularly dangerous to life and property because they move quickly, destroy objects in their paths, and often strike without warning. They occur in a wide variety of environments throughout the world, including all 50 states and U.S. Territories.
Debris flow - Wikipedia
WEBDebris flows are geological phenomena in which water-laden masses of soil and fragmented rock flow down mountainsides, funnel into stream channels, entrain objects in their paths, and form thick, muddy deposits on valley floors.
What is a Debris Flow? Definition, Videos, Pictures, Maps
WEBA debris flow is a moving mass of loose mud, sand, soil, rock, water and air that travels down a slope under the influence of gravity. To be considered a debris flow, the moving material must be loose and capable of "flow," and at least 50% of the material must be sand-size particles or larger.
Debris Flow - an overview | ScienceDirect Topics
WEBA debris flow is a mixture of water and particles driven down a slope by gravity. They typically consist of unsteady, non-uniform surges of mixtures of muddy water and high concentrations of rock fragments of different shapes and sizes.
Debris-flow monitoring and warning: Review and examples
WEBDec 1, 2019 · Debris flows represent one of the most dangerous types of mass movements, because of their high velocities, large impact forces and long runout distances. This review describes the available debris-flow monitoring techniques and proposes recommendations to inform the design of future monitoring and warning/alarm systems.
10.6: Debris Flows - Geosciences LibreTexts
WEBAug 18, 2022 · Debris flows are concentrated mixtures of water and loose rock and mineral material that flow downslope, usually in a preexisting channel, under the pull of gravity. Speeds range from a slow walk to a speeding automobile.
Debris flow - SpringerLink
WEBA debris flow can form during a volcanic eruption when hot volcanic debris melts and mixes with snow and ice, or when crater lakes or near-surface groundwater are explosively expelled. A debris flow may also form when pore water is expelled during consolidation of a landslide deposit.
Debris flows: Behavior and hazard assessment
WEBJan 1, 2014 · Debris flows are water-laden masses of soil and fragmented rock that rush down mountainsides, funnel into stream channels, entrain objects in their paths, and form lobate deposits when they spill onto valley floors.
Debris Flow - SpringerLink
WEBJan 1, 2016 · Debris flow is an extremely rapid, flow-like mass movement, traveling in a steep, established channel and involving a saturated, unsorted mixture of granular soils, organics, and other debris (Hungr et al., 2001).
WEBII. Debris Flows • Initiation: What happens when a landslide starts to move? o Some travel a short distance and stop due to increased FS o More commonly, slide starts to behave like a fluid after traveling a few meters. o Result: milkshake of H 2 O, sediment, and other debris that undergoes
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