Silty Sand (Substrate Subgroup)

Component: Substrate

Unique Identifier: 292

Substrate Origin	Geologic Substrate
Substrate Class	Unconsolidated Mineral Substrate
Substrate Subclass	Fine Unconsolidated Substrate
Substrate Group	Muddy Sand
Substrate Subgroup	Silty Sand

Description

Definition

Geologic Substrate surface layer shows no trace of Gravel and contains 50% to < 90% Sand; the remaining Silt-Clay mix is 67% or more Silt.