TrekGEO > Geology of Japan > Sedimentary facies > Debris flow

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Debris flow

Circumstances

Deposits of water-saturated mixture of silt, sands, and gravels, which flow at the high speed on the slopes in the upstream river region.

Sedimentary facies (Sediments)

Angular boulders - pebbles in a matrix of poorly sorted sandy silt. Clast-supported.

Sedimentary facies (Structures)

Indicates no foliations.

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