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A debris flow is a moving mass of loose material that travels down a steep slope under gravity. It can be very fast, long, and dangerous. Learn how to identify, trigger, and prevent debris flows from various sources such as rainfall, eruptions, or logging. See videos, maps, and photos of actual events and examples.
A debris slide is a type of slide characterized by the chaotic movement of material mixed with water and/or ice. It is usually triggered by the saturation of thickly vegetated slopes which results in an incoherent mixture of broken timber, smaller vegetation and other debris. [29]
Translational slides often are rapid movements along a plane of distinct weakness between the overlying slide material and the more stable underlying material. Slides can be further subdivided into rock slides, debris slides, or earth slides depending on the type of the material involved (see table). Type of Movement.
Debris flow: A debris flow is a form of rapid mass movement in which a combination of loose soil, rock, organic matter, air, and water mobilize as a slurry that flows downslope (fig. 3F). Debris flows include <50% fines.
Natural Hazards. What is a debris flow? Debris 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.
6 de sept. de 2021 · Debris slide is the downslope movement of broken rock masses, natural soil, and unconsolidated sedimentary materials along with a surface under the deposit (Hu and Bürgmann 2020). This process may become more frequent due to slope modification during highway construction or urbanization.
30 de jun. de 2020 · Using aerial imagery and a lidar digital elevation model (DEM), we mapped and characterized the mobility of debris slides and flows in four different geologic materials: (1) mudstone, siltstone, and sandstone; (2) submarine basalt and chert; (3) marine volcaniclastics; and (4) granodiorite.
