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Gravel (Substrate Group)

Component: Substrate

Unique Identifier: 264

Substrate Origin Geologic Substrate
Substrate Class Unconsolidated Mineral Substrate
Substrate Subclass Coarse Unconsolidated Substrate
Substrate Group Gravel
Substrate Subgroup Boulder
Cobble
Pebble
Granule


Description
Definition Geologic Substrate surface layer contains > 80% Gravel (particles 2 millimeters to < 4,096 millimeters diameter).