Differences Between Types Of Lahar Processes And Deposits

Differences between types of lahar processes and deposits

 

What is the difference between lahar and mudflow?

The Indonesian word lahar refers to mudflows in volcanic terrain. Lahars can occur both during an eruption and as secondary flows long after an eruption is over, as rainfall remobilizes volcanic ash deposits. ... After emplacement of a mudflow, dewatering can cause the deposit to harden almost like concrete.

Lahars include any rapidly flowing masses of earth saturated by water flowing under the force of gravity. ... As a lahar ebbs, it usually leaves a deposit of sediments sorted by distance from its origin. A lahar can also form as a debris avalanche hurtles from a volcano entraining everything in its path.