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Gravelly Muddy Sand (Substrate Subgroup)

Component: Substrate

Unique Identifier: 275

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

Definition Geologic Substrate is 5% to < 30% Gravel, and the remaining Sand-Mud mix is 50% to < 90% Sand.