cohesive lahar

A type of volcanic debris flow that contains more than 3-5 percent clay in the deposit matrix. Such lahars are thought to form from volcanic debris avalanches. Cohesive lahars are very mobile and may flow long distances (several tens of kilometers or more).

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

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  • 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). GLOSSARY OF VOLCANIC TERMS A type of mass flow comprising a dense, cohesive, flowing… …   Glossary of volcanic terms

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