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Gravelly Sand (Substrate Subgroup)

Component: Substrate

Unique Identifier: 274

Substrate Origin Geologic Substrate
Substrate Class Unconsolidated Mineral Substrate
Substrate Subclass Coarse Unconsolidated Substrate
Substrate Group Gravelly
Substrate Subgroup Gravelly Sand


Description
Definition Geologic Substrate is 5% to < 30% Gravel, and the remaining Sand-Mud mix is 90% or more Sand.