debris flow

ALASKA VOLCANO OBSERVATORY GLOSSARY
A mixture of water-saturated rock debris that flows downslope under the force of gravity (also called lahar or mudflow).
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GLOSSARY OF VOLCANIC TERMS
A type of mass flow comprising a dense, cohesive, flowing mixture of sediment (mud through boulder sized materials, generally >50% by volume), water, and commonly, organic debris. Debris flows generally move downslope in laminar fashion due to the force of gravity (Vallance, 2000, p. 601; Carey, 2000, p. 627). Debris flows generated at volcanoes are commonly referred to as lahars.

Glossary of volcanic terms. - University of Wisconsin Oshkosh. . 2001.

Look at other dictionaries:

  • Debris flow — Scars formed by debris flow in great Los Angeles during the winter of 1968 1969. The photograph was taken within several months of the debris flows occurring. A debris flow is a fast moving, liquefied landslide of unconsolidated, saturated debris …   Wikipedia

  • Debris Flow — Ein Schuttstrom, im geologischen Fachgebrauch auch mit dem englischen Wort debris flow bezeichnet, ist eine Massenbewegung, bei der Gerölle, Steine und Felsblöcke, in manchen Fällen auch Pflanzen, Bäume oder anderer Schutt in einer schlammigen… …   Deutsch Wikipedia

  • debris flow —    The mass movement process, associated sediments (debris flow deposit), or resultant landform characterized by a very rapid type of flow dominated by a sudden downslope movement of a mass of rock, soil, and mud (more than 50% of the particles… …   Glossary of landform and geologic terms

  • debris flow — /ˈdɛbri floʊ/ (say debree floh) noun a moving slurry of soil mixed with trees, rock fragments, etc., that are in its path, generated when a hillside becomes saturated with water, as from heavy rain or melting snow, and collapses; mudflow …   Australian English dictionary

  • supraglacial debris-flow sediment —    (not preferred)    refer to till …   Glossary of landform and geologic terms

  • Debris — (engl./frz. deɪˈbriː, dɛˈbriː, Überbleibsel, Rest, Abfall, Schmutz, Schutt, Geröll) steht für: Space Debris, siehe Weltraummüll Debris flow, in der Geologie ein Ausdruck für Schuttstrom Debris (Biologie), organisches Material, das im Meer zu… …   Deutsch Wikipedia

  • Debris — For other uses, see Debris (disambiguation). Debris /dɨˈbriː/ is rubble, wreckage, ruins, litter and discarded garbage/refuse/trash, scattered remains of something destroyed, or, in geology, large rock fragments left by a melting glacier etc. The …   Wikipedia

  • debris avalanche —    The mass movement process, associated sediments (debris avalanche deposit), or resultant landform characterized by a very rapid to extremely rapid type of flow dominated by the sudden downslope movement of incoherent, unsorted mixtures of soil …   Glossary of landform and geologic terms

  • flow —    A category of mass movement processes, associated sediments (flow deposit) and landforms characterized by slow to very rapid downslope movement of unconsolidated material which, whether saturated or comparatively dry, behaves much as a viscous …   Glossary of landform and geologic terms

  • Flow measurement — is the quantification of bulk fluid movement. Flow can be measured in a variety of ways. Positive displacement flow meters acumulate a fixed volume of fluid and then count the number of times the volume is filled to measure flow. Other flow… …   Wikipedia

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