Deposit

Lahar

Debris avalanche

PA-BNE

Thickness

Typically < 10 m.

>15 m.

Approx. 6 m.

Matrix characteristics

Homogeneus, over long portions of the deposit

Abrupt contacts between matrices of different colors in the same unit

Contact between two different matrices vertically

Vesicules

Common, with greater quantity at the top

Not common, restricted to parts of the deposit

Not found

Block fracturing

Uncommon

Jigsaw fracturing

There is no fracturing

Maximum-sized block

Typically diameters < 10 m.

Blocks > 10 m3 are common

Approx. 8 × 102 m3

Internal structures

Little block deformation

Block warping, partial mixing of different blocks and matrices

There is no deformation of blocks or mixing of the matrices

Horizontal continuity

Facies continuity

There is no horizontal facies continuity

The facies continue horizontally